A Database of Drosophila Genes & Genomes

FB2012_01, released January 20th, 2012
 

Gene Dmel\α-Spec

General Information
SymbolDmel\α-SpecSpeciesD. melanogaster
Nameα SpectrinAnnotation symbolCG1977
Feature typeprotein_coding_geneFlyBase IDFBgn0250789
Gene Model StatusCurrent Stock availability 14 publicly available
Also Known AsαSpec, alpha-Spec, l(3)dre3, Spec, α-spectrin, α, l(3)04276
Genomic Location
Chromosome (arm)3LRecombination map3-2 +/- 2
Cytogenetic map62B4-62B4Sequence location3L:1,779,111..1,795,319 [-]

Genomic Maps

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modENCODE GBrowse
detailed view
hide Summary Information
Automatically generated summary

See sections below for more information
The gene α Spectrin is referred to in FlyBase by the symbol Dmel\α-Spec (CG1977, FBgn0250789). It is a protein_coding_gene from Drosophila melanogaster. There is experimental evidence that it has the molecular function: actin binding; microtubule binding. There is experimental evidence that it is involved in the biological process: negative regulation of microtubule depolymerization; central nervous system development; neuromuscular synaptic transmission; regulation of synapse organization; germarium-derived oocyte fate determination; long-term strengthening of neuromuscular junction; oocyte construction; maintenance of presynaptic active zone structure; germarium-derived female germ-line cyst formation; axon midline choice point recognition. 46 alleles are reported. The phenotypes of these alleles are annotated with: organ system; multicellular structure; organ system subdivision; anatomical structure; synapse; cytoplasmic part; non-connected developing system; portion of tissue; epithelial cell; postsynaptic membrane. It has one annotated transcript and one annotated polypeptide. Protein features are: Calcium-binding EF-hand; EF-HAND 2; EF-Hand 1, calcium-binding site; EF-hand; EF-hand, Ca insensitive; EF-hand-like domain; Spectrin alpha chain, SH3 domain; Spectrin repeat; Spectrin/alpha-actinin; Src homology-3 domain. Summary of modENCODE Temporal Expression Profile: Temporal profile ranges from a peak of very high expression to a trough of moderately high expression. Peak expression observed within 06-24 hour embryonic stages, during early larval stages. Summary of FlyAtlas Anatomical Expression Data: High or moderate levels of expression observed in all larval and adult organs/tissues. Expression at high levels in the following post-embryonic organs or tissues: adult head, adult eye, larval/adult central nervous system, adult crop, larval/adult midgut, larval/adult hindgut, larval Malpighian tubules, adult heart, larval/adult salivary gland, larval trachea, adult spermathecae, adult male accessory gland, larval/adult carcass. Expression at moderate levels in the following post-embryonic organs or tissues: adult Malpighian tubules, larval/adult fat body, adult ovary, adult testis. Comments on Affy2 ProbeSet: ProbeSet 1626349_at completely aligns to an exonic region of the only FlyBase-annotated transcript isoform of alpha-Spec. Gene sequence location is 3L:1779111..1795319.

External Summaries
hide Phenotypic Description from the Red Book (Lindsley & Zimm 1992)
Gene/Allele symbols may differ from current usage
l(3)62Bd
Hemizygotes die in first larval instar, with one of seven alleles tested occasionally surviving until the second instar.
αSpec: alpha Spectrin
Structural gene for alpha spectrin, a 234 kd polypeptide that forms an elongated heterodimer with beta spectrin to form an important cytoskeletal component. Product crossreacts with antibodies against mammalian spectrins; can be shown to bind to beta spectrin subunits.
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Description
What does this section display?
This section contains items that were added to this record for each release. It currently only tracks new links between this FlyBase report and other FlyBase data classes (e.g. genes, references, stocks) or controlled vocabulary terms (e.g. GO, anatomy terms).
What does this section not display?
This section does not currently display links that were removed or gene model changes.
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FB2011_10
FB2012_01
References
Sequence features
All updates Click here to see a list of all updates to this record from FB2010_08 and on.
hide Detailed Mapping Data
FlyBase Computed Cytological Location
Cytogenetic map
Evidence for location
62B4-62B4  
Limits computationally determined from genome sequence between P{EP}rhoEP3704&P{PZ}l(3)0622606226 and P{PZ}dlt04276  
Experimentally Determined Cytological Location
Cytogenetic map
Notes
References
62B1-62B7  
62B4-62B5  
(determined by in situ hybridisation)  
62B1-62B7  
(determined by in situ hybridisation)  
62B1-62B7  
(determined by in situ hybridisation)  
Experimentally Determined Recombination Data
Location
Left of (cM)
Right of (cM)
Notes
hide Gene Model & Products
Please see the GBrowse view of Dmel\α-Spec for information on other features
To submit a correction to a gene model please use the Contact FlyBase form
detailed view FBtr0072791 FBtr0072776 FBtr0072790 FBtr0072789 FBtr0072777 FBtr0072778 FBpp0072674 FBpp0072659 FBpp0072672 FBpp0072673 FBpp0072660 FBti0128163 FBti0127479 FBti0078008 FBti0012851 FBti0108968 FBti0009886 FBti0108010 FBti0105220 FBti0125480 FBti0104070 FBti0036008 FBti0047038 FBti0065446 FBti0109751 FBti0055366 FBti0111700 FBti0107836 FBti0029877 FBti0115598
Comments on Gene Model
hide Transcript Data
Annotated Transcripts
Name
FlyBase ID
RefSeq ID
Length (nt)
Associated CDS (aa)
FBtr0072789
  7586
  2415
Additional Transcript Data & Comments
Reported size (kB)
9.0 (unknown)
8.0 (compiled cDNA)
7.292 (compiled cDNA)
Comments
External Data
Crossreferences
hide Polypeptide Data
Annotated Polypeptides
Name
FlyBase ID
Predicted MW (kDa)
Length (aa)
Theoretical pI
RefSeq ID
GenBank protein
FBpp0072672  
278.3  
2415  
4.84  
Additional Polypeptide Data & Comments
Reported size (kDa)
Comments
The regions of the tail ends of the α-Spec andβ-Spec@ chains that are necessary for interchain binding were mapped in vitro. Segments 20 and 21 and part of 22 of the α chain and segments 2 and 3 and part of 1 of the β chain are required for interchain binding.
External Data
Linkouts
Crossreferences
InterPro domains - A database of protein families, domains, and functional sites
PDB - Protein Data Bank. An information portal to biological macromolecular structures
hide Sequences Consistent with the Gene Model
DDBJ /
EMBL /
GenBank
DNA sequence
Protein sequence
Name
 
 
UniProtKB/Swiss-Prot
UniProtKB/TrEMBL
hide Mapped Features
Mapped Features have been reorganized, please see this article for details.
Additional mapped features and mutations can be found on GBrowse or related reports.
Type
Symbol & Location
Additional Notes
References
hide External Data
Linkouts
Crossreferences
hide Expression Data
hideTranscript Expression
Additional Descriptive Data
Marker for
Subcellular Localization
CV Term
Notes
hidePolypeptide Expression
immunolocalization
Stage
Tissue/Position (including subcellular localization)
Reference
mass spectroscopy
Stage
Tissue/Position (including subcellular localization)
Reference
Additional Descriptive Data
Marker for
Subcellular Localization
CV Term
Notes
hide High-Throughput Expression Data
or
Untitled Document detailed view mRpL46-RA dlt-RA alpha-Spec-RA Cdc37-RA
See Gelbart and Emmert, 2010.10.13 for analysis details and data files for all genes.

modENCODE Temporal Expression Data for FBgn0250789


   Styles
Linear
Logarithmic
Heatmap
   Scales
max expr for FBgn0250789
Very low expression bin max
Moderate expression bin max
High expression bin max
Extremely high expression bin max

Summary of modENCODE Temporal Expression Profile: Temporal profile ranges from a peak of very high expression to a trough of moderately high expression. Peak expression observed within 06-24 hour embryonic stages, during early larval stages.
[download data (TSV)]

Guide to modENCODE expression level colors
 
No expression (0 - 0)
 
Extremely low expression (1 - 10)
 
Very low expression (11 - 100)
 
Low expression (101 - 400)
 
Moderate expression (401 - 1400)
 
Moderately high expression (1401 - 4000)
 
High expression (4001 - 10000)
 
Very high expression (10001 - 100000)
 
Extremely high expression (100001 - 2000000)

Linear, scaled to maximum FBgn0250789 expression level
Developmental Stage   Expression Level
embryo 00-02hr
 
 2138
embryo 02-04hr
 
 4520
embryo 04-06hr
 
 8264
embryo 06-08hr
 
 14591
embryo 08-10hr
 
 14188
embryo 10-12hr
 
 11871
embryo 12-14hr
 
 13542
embryo 14-16hr
 
 17517
embryo 16-18hr
 
 12925
embryo 18-20hr
 
 14067
embryo 20-22hr
 
 15572
embryo 22-24hr
 
 14043
larva L1
 
 10224
larva L2
 
 7977
larva L3 12hr old
 
 6381
larva L3 puffstage 1-2
 
 3620
larva L3 puffstage 3-6
 
 4957
larva L3 puffstage 7-9
 
 4264
white prepupae new
 
 4498
white prepupae 12hr
 
 5580
white prepupae 24hr
 
 8635
pupae 2d postWPP
 
 7787
pupae 3d postWPP
 
 6517
pupae 4d postWPP
 
 4130
adult male 01day
 
 5062
adult male 05day
 
 5185
adult male 30day
 
 5104
adult female 01day
 
 4228
adult female 05day
 
 2800
adult female 30day
 
 2887
Expression Level Scale
 None 
 Extremely low 
 Very low 
 Low 
 Moderate 
 Moderately high 
 High 
 Very high 
Linear, scaled to Very low expression
Developmental Stage   Expression Level
embryo 00-02hr
 (2138)
embryo 02-04hr
 (4520)
embryo 04-06hr
 (8264)
embryo 06-08hr
 (14591)
embryo 08-10hr
 (14188)
embryo 10-12hr
 (11871)
embryo 12-14hr
 (13542)
embryo 14-16hr
 (17517)
embryo 16-18hr
 (12925)
embryo 18-20hr
 (14067)
embryo 20-22hr
 (15572)
embryo 22-24hr
 (14043)
larva L1
 (10224)
larva L2
 (7977)
larva L3 12hr old
 (6381)
larva L3 puffstage 1-2
 (3620)
larva L3 puffstage 3-6
 (4957)
larva L3 puffstage 7-9
 (4264)
white prepupae new
 (4498)
white prepupae 12hr
 (5580)
white prepupae 24hr
 (8635)
pupae 2d postWPP
 (7787)
pupae 3d postWPP
 (6517)
pupae 4d postWPP
 (4130)
adult male 01day
 (5062)
adult male 05day
 (5185)
adult male 30day
 (5104)
adult female 01day
 (4228)
adult female 05day
 (2800)
adult female 30day
 (2887)
Expression Level Scale
 None 
 Extremely low 
 Very low 
 Low 
Linear, scaled to Moderate expression
Developmental Stage   Expression Level
embryo 00-02hr
 (2138)
embryo 02-04hr
 (4520)
embryo 04-06hr
 (8264)
embryo 06-08hr
 (14591)
embryo 08-10hr
 (14188)
embryo 10-12hr
 (11871)
embryo 12-14hr
 (13542)
embryo 14-16hr
 (17517)
embryo 16-18hr
 (12925)
embryo 18-20hr
 (14067)
embryo 20-22hr
 (15572)
embryo 22-24hr
 (14043)
larva L1
 (10224)
larva L2
 (7977)
larva L3 12hr old
 (6381)
larva L3 puffstage 1-2
 (3620)
larva L3 puffstage 3-6
 (4957)
larva L3 puffstage 7-9
 (4264)
white prepupae new
 (4498)
white prepupae 12hr
 (5580)
white prepupae 24hr
 (8635)
pupae 2d postWPP
 (7787)
pupae 3d postWPP
 (6517)
pupae 4d postWPP
 (4130)
adult male 01day
 (5062)
adult male 05day
 (5185)
adult male 30day
 (5104)
adult female 01day
 (4228)
adult female 05day
 (2800)
adult female 30day
 (2887)
Expression Level Scale
 None 
 Extremely low 
 Very low 
 Low 
 Moderate 
 Moderately high 
Linear, scaled to High expression
Developmental Stage   Expression Level
embryo 00-02hr
 
 2138
embryo 02-04hr
 
 4520
embryo 04-06hr
 
 8264
embryo 06-08hr
 (14591)
embryo 08-10hr
 (14188)
embryo 10-12hr
 (11871)
embryo 12-14hr
 (13542)
embryo 14-16hr
 (17517)
embryo 16-18hr
 (12925)
embryo 18-20hr
 (14067)
embryo 20-22hr
 (15572)
embryo 22-24hr
 (14043)
larva L1
 10224
larva L2
 
 7977
larva L3 12hr old
 
 6381
larva L3 puffstage 1-2
 
 3620
larva L3 puffstage 3-6
 
 4957
larva L3 puffstage 7-9
 
 4264
white prepupae new
 
 4498
white prepupae 12hr
 
 5580
white prepupae 24hr
 
 8635
pupae 2d postWPP
 
 7787
pupae 3d postWPP
 
 6517
pupae 4d postWPP
 
 4130
adult male 01day
 
 5062
adult male 05day
 
 5185
adult male 30day
 
 5104
adult female 01day
 
 4228
adult female 05day
 
 2800
adult female 30day
 
 2887
Expression Level Scale
 None 
 Extremely low 
 Very low 
 Low 
 Moderate 
 Moderately high 
 High 
 Very high 
Linear, scaled to Extremely high expression
Developmental Stage   Expression Level
embryo 00-02hr
 
 2138
embryo 02-04hr
 
 4520
embryo 04-06hr
 
 8264
embryo 06-08hr
 
 14591
embryo 08-10hr
 
 14188
embryo 10-12hr
 
 11871
embryo 12-14hr
 
 13542
embryo 14-16hr
 
 17517
embryo 16-18hr
 
 12925
embryo 18-20hr
 
 14067
embryo 20-22hr
 
 15572
embryo 22-24hr
 
 14043
larva L1
 
 10224
larva L2
 
 7977
larva L3 12hr old
 
 6381
larva L3 puffstage 1-2
 
 3620
larva L3 puffstage 3-6
 
 4957
larva L3 puffstage 7-9
 
 4264
white prepupae new
 
 4498
white prepupae 12hr
 
 5580
white prepupae 24hr
 
 8635
pupae 2d postWPP
 
 7787
pupae 3d postWPP
 
 6517
pupae 4d postWPP
 
 4130
adult male 01day
 
 5062
adult male 05day
 
 5185
adult male 30day
 
 5104
adult female 01day
 
 4228
adult female 05day
 
 2800
adult female 30day
 
 2887
Expression Level Scale
 None 
 Extremely low 
 Very low 
 Low 
 Moderate 
 Moderately high 
 High 
 Very high 
 Extremely high 
log, scaled to maximum FBgn0250789 expression level
Developmental Stage   Expression Level
embryo 00-02hr
 
 2138
embryo 02-04hr
 
 4520
embryo 04-06hr
 
 8264
embryo 06-08hr
 
 14591
embryo 08-10hr
 
 14188
embryo 10-12hr
 
 11871
embryo 12-14hr
 
 13542
embryo 14-16hr
 
 17517
embryo 16-18hr
 
 12925
embryo 18-20hr
 
 14067
embryo 20-22hr
 
 15572
embryo 22-24hr
 
 14043
larva L1
 
 10224
larva L2
 
 7977
larva L3 12hr old
 
 6381
larva L3 puffstage 1-2
 
 3620
larva L3 puffstage 3-6
 
 4957
larva L3 puffstage 7-9
 
 4264
white prepupae new
 
 4498
white prepupae 12hr
 
 5580
white prepupae 24hr
 
 8635
pupae 2d postWPP
 
 7787
pupae 3d postWPP
 
 6517
pupae 4d postWPP
 
 4130
adult male 01day
 
 5062
adult male 05day
 
 5185
adult male 30day
 
 5104
adult female 01day
 
 4228
adult female 05day
 
 2800
adult female 30day
 
 2887
Expression Level Scale
 None 
 Extremely low 
 Very low 
 Low 
 Moderate 
 Moderately high 
 High 
 Very high 
log, scaled to Very low expression
Developmental Stage   Expression Level
embryo 00-02hr
 (2138)
embryo 02-04hr
 (4520)
embryo 04-06hr
 (8264)
embryo 06-08hr
 (14591)
embryo 08-10hr
 (14188)
embryo 10-12hr
 (11871)
embryo 12-14hr
 (13542)
embryo 14-16hr
 (17517)
embryo 16-18hr
 (12925)
embryo 18-20hr
 (14067)
embryo 20-22hr
 (15572)
embryo 22-24hr
 (14043)
larva L1
 (10224)
larva L2
 (7977)
larva L3 12hr old
 (6381)
larva L3 puffstage 1-2
 (3620)
larva L3 puffstage 3-6
 (4957)
larva L3 puffstage 7-9
 (4264)
white prepupae new
 (4498)
white prepupae 12hr
 (5580)
white prepupae 24hr
 (8635)
pupae 2d postWPP
 (7787)
pupae 3d postWPP
 (6517)
pupae 4d postWPP
 (4130)
adult male 01day
 (5062)
adult male 05day
 (5185)
adult male 30day
 (5104)
adult female 01day
 (4228)
adult female 05day
 (2800)
adult female 30day
 (2887)
Expression Level Scale
 None 
 Extremely low 
 Very low 
 Low 
log, scaled to Moderate expression
Developmental Stage   Expression Level
embryo 00-02hr
 2138
embryo 02-04hr
 (4520)
embryo 04-06hr
 (8264)
embryo 06-08hr
 (14591)
embryo 08-10hr
 (14188)
embryo 10-12hr
 (11871)
embryo 12-14hr
 (13542)
embryo 14-16hr
 (17517)
embryo 16-18hr
 (12925)
embryo 18-20hr
 (14067)
embryo 20-22hr
 (15572)
embryo 22-24hr
 (14043)
larva L1
 (10224)
larva L2
 (7977)
larva L3 12hr old
 (6381)
larva L3 puffstage 1-2
 (3620)
larva L3 puffstage 3-6
 (4957)
larva L3 puffstage 7-9
 (4264)
white prepupae new
 (4498)
white prepupae 12hr
 (5580)
white prepupae 24hr
 (8635)
pupae 2d postWPP
 (7787)
pupae 3d postWPP
 (6517)
pupae 4d postWPP
 (4130)
adult male 01day
 (5062)
adult male 05day
 (5185)
adult male 30day
 (5104)
adult female 01day
 (4228)
adult female 05day
 (2800)
adult female 30day
 (2887)
Expression Level Scale
 None 
 Extremely low 
 Very low 
 Low 
 Moderate 
 Moderately high 
log, scaled to High expression
Developmental Stage   Expression Level
embryo 00-02hr
 
 2138
embryo 02-04hr
 
 4520
embryo 04-06hr
 
 8264
embryo 06-08hr
 14591
embryo 08-10hr
 14188
embryo 10-12hr
 11871
embryo 12-14hr
 13542
embryo 14-16hr
 17517
embryo 16-18hr
 12925
embryo 18-20hr
 14067
embryo 20-22hr
 15572
embryo 22-24hr
 14043
larva L1
 10224
larva L2
 
 7977
larva L3 12hr old
 
 6381
larva L3 puffstage 1-2
 
 3620
larva L3 puffstage 3-6
 
 4957
larva L3 puffstage 7-9
 
 4264
white prepupae new
 
 4498
white prepupae 12hr
 
 5580
white prepupae 24hr
 
 8635
pupae 2d postWPP
 
 7787
pupae 3d postWPP
 
 6517
pupae 4d postWPP
 
 4130
adult male 01day
 
 5062
adult male 05day
 
 5185
adult male 30day
 
 5104
adult female 01day
 
 4228
adult female 05day
 
 2800
adult female 30day
 
 2887
Expression Level Scale
 None 
 Extremely low 
 Very low 
 Low 
 Moderate 
 Moderately high 
 High 
 Very high 
log, scaled to Extremely high expression
Developmental Stage   Expression Level
embryo 00-02hr
 
 2138
embryo 02-04hr
 
 4520
embryo 04-06hr
 
 8264
embryo 06-08hr
 
 14591
embryo 08-10hr
 
 14188
embryo 10-12hr
 
 11871
embryo 12-14hr
 
 13542
embryo 14-16hr
 
 17517
embryo 16-18hr
 
 12925
embryo 18-20hr
 
 14067
embryo 20-22hr
 
 15572
embryo 22-24hr
 
 14043
larva L1
 
 10224
larva L2
 
 7977
larva L3 12hr old
 
 6381
larva L3 puffstage 1-2
 
 3620
larva L3 puffstage 3-6
 
 4957
larva L3 puffstage 7-9
 
 4264
white prepupae new
 
 4498
white prepupae 12hr
 
 5580
white prepupae 24hr
 
 8635
pupae 2d postWPP
 
 7787
pupae 3d postWPP
 
 6517
pupae 4d postWPP
 
 4130
adult male 01day
 
 5062
adult male 05day
 
 5185
adult male 30day
 
 5104
adult female 01day
 
 4228
adult female 05day
 
 2800
adult female 30day
 
 2887
Expression Level Scale
 None 
 Extremely low 
 Very low 
 Low 
 Moderate 
 Moderately high 
 High 
 Very high 
 Extremely high 
Heatmap
Developmental Stage   Expression Level
embryo 00-02hr
 
 
embryo 02-04hr
 
 
embryo 04-06hr
 
 
embryo 06-08hr
 
 
embryo 08-10hr
 
 
embryo 10-12hr
 
 
embryo 12-14hr
 
 
embryo 14-16hr
 
 
embryo 16-18hr
 
 
embryo 18-20hr
 
 
embryo 20-22hr
 
 
embryo 22-24hr
 
 
larva L1
 
 
larva L2
 
 
larva L3 12hr old
 
 
larva L3 puffstage 1-2
 
 
larva L3 puffstage 3-6
 
 
larva L3 puffstage 7-9
 
 
white prepupae new
 
 
white prepupae 12hr
 
 
white prepupae 24hr
 
 
pupae 2d postWPP
 
 
pupae 3d postWPP
 
 
pupae 4d postWPP
 
 
adult male 01day
 
 
adult male 05day
 
 
adult male 30day
 
 
adult female 01day
 
 
adult female 05day
 
 
adult female 30day
 
 

FlyAtlas Anatomical Expression Data for FBgn0250789


   Styles
Linear
Logarithmic
Heatmap
Back-to-back
   Scales
max expr for FBgn0250789
Moderate expression bin max
High level expression bin max
Very high expression bin max

Summary of FlyAtlas Anatomical Expression Data: High or moderate levels of expression observed in all larval and adult organs/tissues. Expression at high levels in the following post-embryonic organs or tissues: adult head, adult eye, larval/adult central nervous system, adult crop, larval/adult midgut, larval/adult hindgut, larval Malpighian tubules, adult heart, larval/adult salivary gland, larval trachea, adult spermathecae, adult male accessory gland, larval/adult carcass. Expression at moderate levels in the following post-embryonic organs or tissues: adult Malpighian tubules, larval/adult fat body, adult ovary, adult testis.
[download data (TSV)]

Guide to FlyAtlas expression level colors
 
No expression (0 - 9.999)
 
Low expression (10 - 99.999)
 
Moderate expression (100 - 499.999)
 
High level expression (500 - 999.999)
 
Very high expression (1000 - 25000)

Linear, scaled to maximum FBgn0250789 expression level
Tissue   Expression Level
Larval Central Nervous System
 
 940.675
Larval Midgut
 
 978
Larval Hindgut
 
 1155.4
Larval Malpighian Tubules
 
 539.4
Larval Fat Body
 
 302.5
Larval Salivary Gland
 
 676.2
Larval Trachea
 
 1270.7
Larval Carcass
 
 803.15
Adult Head
 
 588.1
Adult Eye
 
 866.25
Adult Brain
 
 1142.8
Adult Thoracic-Abdominal Ganglion
 
 1426.5
Adult Crop
 
 1010.1
Adult Midgut
 
 1046.5
Adult Hindgut
 
 1024.2
Adult Malpighian Tubules
 
 469.5
Adult Fat Body
 
 453.7
Adult Salivary Gland
 
 898.3
Adult Heart
 
 792.4
Adult VirginFemale Spermatheca
 
 606.5
Adult InseminatedFemale Spermatheca
 
 659.2
Adult Ovary
 
 259.6
Adult Testis
 
 186
Adult Male Accessory Gland
 
 620.7
Adult Carcass
 
 555.2
Expression Level Scale
 None 
 Low 
 Moderate 
 High 
 Very high 
Linear, scaled to Moderate expression
Tissue   Expression Level
Larval Central Nervous System
 (940.675)
Larval Midgut
 (978)
Larval Hindgut
 (1155.4)
Larval Malpighian Tubules
 (539.4)
Larval Fat Body
 
 302.5
Larval Salivary Gland
 (676.2)
Larval Trachea
 (1270.7)
Larval Carcass
 (803.15)
Adult Head
 (588.1)
Adult Eye
 (866.25)
Adult Brain
 (1142.8)
Adult Thoracic-Abdominal Ganglion
 (1426.5)
Adult Crop
 (1010.1)
Adult Midgut
 (1046.5)
Adult Hindgut
 (1024.2)
Adult Malpighian Tubules
 
 469.5
Adult Fat Body
 
 453.7
Adult Salivary Gland
 (898.3)
Adult Heart
 (792.4)
Adult VirginFemale Spermatheca
 (606.5)
Adult InseminatedFemale Spermatheca
 (659.2)
Adult Ovary
 
 259.6
Adult Testis
 
 186
Adult Male Accessory Gland
 (620.7)
Adult Carcass
 (555.2)
Expression Level Scale
 None 
 Low 
 Moderate 
 High 
Linear, scaled to High level expression
Tissue   Expression Level
Larval Central Nervous System
 
 940.675
Larval Midgut
 
 978
Larval Hindgut
 (1155.4)
Larval Malpighian Tubules
 
 539.4
Larval Fat Body
 
 302.5
Larval Salivary Gland
 
 676.2
Larval Trachea
 (1270.7)
Larval Carcass
 
 803.15
Adult Head
 
 588.1
Adult Eye
 
 866.25
Adult Brain
 (1142.8)
Adult Thoracic-Abdominal Ganglion
 (1426.5)
Adult Crop
 1010.1
Adult Midgut
 1046.5
Adult Hindgut
 1024.2
Adult Malpighian Tubules
 
 469.5
Adult Fat Body
 
 453.7
Adult Salivary Gland
 
 898.3
Adult Heart
 
 792.4
Adult VirginFemale Spermatheca
 
 606.5
Adult InseminatedFemale Spermatheca
 
 659.2
Adult Ovary
 
 259.6
Adult Testis
 
 186
Adult Male Accessory Gland
 
 620.7
Adult Carcass
 
 555.2
Expression Level Scale
 None 
 Low 
 Moderate 
 High 
 Very high 
Linear, scaled to Very high expression
Tissue   Expression Level
Larval Central Nervous System
 
 940.675
Larval Midgut
 
 978
Larval Hindgut
 
 1155.4
Larval Malpighian Tubules
 
 539.4
Larval Fat Body
 
 302.5
Larval Salivary Gland
 
 676.2
Larval Trachea
 
 1270.7
Larval Carcass
 
 803.15
Adult Head
 
 588.1
Adult Eye
 
 866.25
Adult Brain
 
 1142.8
Adult Thoracic-Abdominal Ganglion
 
 1426.5
Adult Crop
 
 1010.1
Adult Midgut
 
 1046.5
Adult Hindgut
 
 1024.2
Adult Malpighian Tubules
 
 469.5
Adult Fat Body
 
 453.7
Adult Salivary Gland
 
 898.3
Adult Heart
 
 792.4
Adult VirginFemale Spermatheca
 
 606.5
Adult InseminatedFemale Spermatheca
 
 659.2
Adult Ovary
 
 259.6
Adult Testis
 
 186
Adult Male Accessory Gland
 
 620.7
Adult Carcass
 
 555.2
Expression Level Scale
 None 
 Low 
 Moderate 
 High 
 Very high 
log, scaled to maximum FBgn0250789 expression level
Tissue   Expression Level
Larval Central Nervous System
 
 940.675
Larval Midgut
 
 978
Larval Hindgut
 
 1155.4
Larval Malpighian Tubules
 
 539.4
Larval Fat Body
 
 302.5
Larval Salivary Gland
 
 676.2
Larval Trachea
 
 1270.7
Larval Carcass
 
 803.15
Adult Head
 
 588.1
Adult Eye
 
 866.25
Adult Brain
 
 1142.8
Adult Thoracic-Abdominal Ganglion
 
 1426.5
Adult Crop
 
 1010.1
Adult Midgut
 
 1046.5
Adult Hindgut
 
 1024.2
Adult Malpighian Tubules
 
 469.5
Adult Fat Body
 
 453.7
Adult Salivary Gland
 
 898.3
Adult Heart
 
 792.4
Adult VirginFemale Spermatheca
 
 606.5
Adult InseminatedFemale Spermatheca
 
 659.2
Adult Ovary
 
 259.6
Adult Testis
 
 186
Adult Male Accessory Gland
 
 620.7
Adult Carcass
 
 555.2
Expression Level Scale
 None 
 Low 
 Moderate 
 High 
 Very high 
log, scaled to Moderate expression
Tissue   Expression Level
Larval Central Nervous System
 (940.675)
Larval Midgut
 (978)
Larval Hindgut
 (1155.4)
Larval Malpighian Tubules
 539.4
Larval Fat Body
 
 302.5
Larval Salivary Gland
 676.2
Larval Trachea
 (1270.7)
Larval Carcass
 803.15
Adult Head
 588.1
Adult Eye
 (866.25)
Adult Brain
 (1142.8)
Adult Thoracic-Abdominal Ganglion
 (1426.5)
Adult Crop
 (1010.1)
Adult Midgut
 (1046.5)
Adult Hindgut
 (1024.2)
Adult Malpighian Tubules
 
 469.5
Adult Fat Body
 
 453.7
Adult Salivary Gland
 (898.3)
Adult Heart
 792.4
Adult VirginFemale Spermatheca
 606.5
Adult InseminatedFemale Spermatheca
 659.2
Adult Ovary
 
 259.6
Adult Testis
 
 186
Adult Male Accessory Gland
 620.7
Adult Carcass
 555.2
Expression Level Scale
 None 
 Low 
 Moderate 
 High 
log, scaled to High level expression
Tissue   Expression Level
Larval Central Nervous System
 
 940.675
Larval Midgut
 
 978
Larval Hindgut
 1155.4
Larval Malpighian Tubules
 
 539.4
Larval Fat Body
 
 302.5
Larval Salivary Gland
 
 676.2
Larval Trachea
 1270.7
Larval Carcass
 
 803.15
Adult Head
 
 588.1
Adult Eye
 
 866.25
Adult Brain
 1142.8
Adult Thoracic-Abdominal Ganglion
 1426.5
Adult Crop
 1010.1
Adult Midgut
 1046.5
Adult Hindgut
 1024.2
Adult Malpighian Tubules
 
 469.5
Adult Fat Body
 
 453.7
Adult Salivary Gland
 
 898.3
Adult Heart
 
 792.4
Adult VirginFemale Spermatheca
 
 606.5
Adult InseminatedFemale Spermatheca
 
 659.2
Adult Ovary
 
 259.6
Adult Testis
 
 186
Adult Male Accessory Gland
 
 620.7
Adult Carcass
 
 555.2
Expression Level Scale
 None 
 Low 
 Moderate 
 High 
 Very high 
log, scaled to Very high expression
Tissue   Expression Level
Larval Central Nervous System
 
 940.675
Larval Midgut
 
 978
Larval Hindgut
 
 1155.4
Larval Malpighian Tubules
 
 539.4
Larval Fat Body
 
 302.5
Larval Salivary Gland
 
 676.2
Larval Trachea
 
 1270.7
Larval Carcass
 
 803.15
Adult Head
 
 588.1
Adult Eye
 
 866.25
Adult Brain
 
 1142.8
Adult Thoracic-Abdominal Ganglion
 
 1426.5
Adult Crop
 
 1010.1
Adult Midgut
 
 1046.5
Adult Hindgut
 
 1024.2
Adult Malpighian Tubules
 
 469.5
Adult Fat Body
 
 453.7
Adult Salivary Gland
 
 898.3
Adult Heart
 
 792.4
Adult VirginFemale Spermatheca
 
 606.5
Adult InseminatedFemale Spermatheca
 
 659.2
Adult Ovary
 
 259.6
Adult Testis
 
 186
Adult Male Accessory Gland
 
 620.7
Adult Carcass
 
 555.2
Expression Level Scale
 None 
 Low 
 Moderate 
 High 
 Very high 
Heatmap
Tissue   Expression Level
Larval Central Nervous System
 
 
Larval Midgut
 
 
Larval Hindgut
 
 
Larval Malpighian Tubules
 
 
Larval Fat Body
 
 
Larval Salivary Gland
 
 
Larval Trachea
 
 
Larval Carcass
 
 
Adult Head
 
 
Adult Eye
 
 
Adult Brain
 
 
Adult Thoracic-Abdominal Ganglion
 
 
Adult Crop
 
 
Adult Midgut
 
 
Adult Hindgut
 
 
Adult Malpighian Tubules
 
 
Adult Fat Body
 
 
Adult Salivary Gland
 
 
Adult Heart
 
 
Adult VirginFemale Spermatheca
 
 
Adult InseminatedFemale Spermatheca
 
 
Adult Ovary
 
 
Adult Testis
 
 
Adult Male Accessory Gland
 
 
Adult Carcass
 
 

FlyAtlas Organ/Tissue Expression, larval vs. adult
Larval Expression Level Tissue Adult Expression Level
 
NA 
Head
 
 588.1
 
NA 
Eye
 
 866.25
 
NA 
Brain
 
 1142.8
 
940.675 
Central Nervous System
 
 NA
 
NA 
Thoracic-Abdominal Ganglion
 
 1426.5
 
NA 
Crop
 
 1010.1
 
978 
Midgut
 
 1046.5
 
1155.4 
Hindgut
 
 1024.2
 
539.4 
Malpighian Tubules
 
 469.5
 
302.5 
Fat Body
 
 453.7
 
676.2 
Salivary Gland
 
 898.3
 
NA 
Heart
 
 792.4
 
1270.7 
Trachea
 
 NA
 
NA 
VirginFemale Spermatheca
 
 606.5
 
NA 
InseminatedFemale Spermatheca
 
 659.2
 
NA 
Ovary
 
 259.6
 
NA 
Testis
 
 186
 
NA 
Male Accessory Gland
 
 620.7
 
803.15 
Carcass
 
 555.2

modENCODE Temporal Expression Data (Graveley et al., 2011)
FlyAtlas Anatomical Expression Data (Chintapalli et al., 2007)
hide Expression Clusters
A cluster of genes with similar mRNA expression dynamics across development.
hide External Data & Images
Linkouts
FLIGHT - Cell culture data for RNAi and other high-throughput technologies
hide Alleles & Phenotypes
hide Summary of Allele Phenotypes
Lethality
Allele
Sterility
Allele
Other Phenotypes
Allele
Phenotype manifest in
Allele
brush border & larval midgut & embryo
microtubule cytoskeleton & axon, with Scer\GAL4elav-C155
microtubule cytoskeleton & nerve terminal, with Scer\GAL4elav-C155
hide Classical Alleles ( 32 )
For All Classical Alleles Show

Allele of α-SpecClassMutagenStocksKnown lesion
α-Specrg41loss of function allele, amorphic allele - genetic evidence1 Yes
α-Spec042761 Yes
α-Specd039301 --
α-SpecDG394021 --
α-Spece013611 --
α-Speclm88
1 --
α-SpecMB10065
1 --
α-Spec1.2.10 --
α-Spec1.3hypomorphic allele - genetic evidence0 --
α-Spec10 --
α-Spec20 --
α-Spec30 --
α-Spec40 --
α-Spec50 --
α-Spec60 --
α-Spec70 --
α-Specc033670 --
α-SpecD4-650 --
α-SpecE2-260 Yes
α-Speclm102
0 --
α-Speclm111
0 --
α-Speclm32
0 --
α-SpecN-20 --
α-SpecN2-1410 --
α-SpecP-2hypomorphic allele - genetic evidence0 --
α-SpecP10 Yes
α-SpecP20 Yes
α-SpecP40 Yes
α-Specrg350 Yes
α-SpecS-10 --
α-SpecS0595040 Yes
α-Specunspecified
0 --
hide Alleles Carried on Transgenic Constructs ( 14 )
For All Alleles Carried on Transgenic Constructs Show

Allele of α-SpecClassMutagenStocksKnown lesion
α-SpecRpS27A.T:Hsap\MYC2 Yes
α-Specd1-45.RpS27A.T:Hsap\MYC1 Yes
α-SpecGD96951 Yes
α-SpecJF017271 Yes
α-SpecR22S.RpS27A.T:Hsap\MYC1 Yes
α-SpecRpS27A.PL1 Yes
α-Spec+tCOSMY1-10 Yes
α-SpecdsRNA.Scer\UAS0 Yes
α-SpecEHHS0 Yes
α-SpecKK1015410 Yes
α-SpecRpS27A.T:Ecol\lacZ0 Yes
α-SpecScer\UAS.T:Hsap\MYC0 Yes
α-SpectCOSMY8-10 Yes
α-SpecUbi-p63E.PP0 Yes
hide Aneuploid Aberrations
Disrupted in
Not disrupted in
hide Transgenic Constructs & Insertions
Transgenic Constructs
Type of construct
Name
Expression data
reporter construct
Insertions
Type of insertions
Name
Expression data
insertion of enhancer trap
insertion of mobile activating element
insertion of enhancer trap binary system
hide Gene Ontology: Function, Process & Cellular Component ( 35 unique terms )
hide Terms Based on Experimental Evidence ( 20 terms )
Molecular Function
CV term
References
inferred from direct assay
inferred from direct assay
Biological Process
CV term
References
Cellular Component
CV term
References
inferred from direct assay
inferred from direct assay
inferred from direct assay
inferred from direct assay
inferred from direct assay
inferred from direct assay
hide Terms Based on Predictions or Assertions ( 18 terms )
Molecular Function
CV term
References
inferred from sequence or structural similarity
inferred from sequence or structural similarity with UniProtKB:P08032
non-traceable author statement
inferred from sequence or structural similarity with UniProtKB:P08032
inferred from sequence or structural similarity
Biological Process
CV term
References
inferred from sequence or structural similarity with UniProtKB:P08032
traceable author statement
Cellular Component
CV term
References
inferred from sequence or structural similarity with UniProtKB:P08032
inferred from sequence or structural similarity
non-traceable author statement
traceable author statement
hide Sequence Ontology: Class of Gene
 
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hide Summary of Physical Interactions
Protein-protein
Interacting group
Assay
References
hide Summary of Genetic Interactions
Interacts with
Please look at the allele data for full details of the genetic interactions
α-Spec allele
Gene
References
hide External Data
Linkouts
BioGRID - A database of protein and genetic interactions
DroID - A comprehensive database of gene and protein interactions.
InterologFinder Protein-protein interactions (PPI) from both known and predicted PPI data sets.
hide Orthologs
Genome-wide drosophilid orthologs
Curated drosophilid orthologs
Linkouts
InParanoid A subset of ortholog calls from InParanoid.
OrthoDB (Arthropod subset) The hierarchical catalog of eukaryotic orthologs.
hide Stocks & Reagents
hide Stocks Listed in FlyBase ( 14 )
Bloomington
Harvard
VDRC
hide Genomic Clones ( 2 )
Please Note FlyBase no longer curates genomic clone accessions so this list may not be complete
hide cDNA Clones ( 97 )
Please Note
This section lists cDNAs and ESTs that fall within the genomic extent of the gene model, which may include cDNAs and ESTs of genes within introns, or of overlapping genes. Please see GBrowse for alignment of the cDNAs and ESTs to the gene model.
cDNA Clones, Fully Sequenced
BDGP DGC clones
Other clones
cDNA Clones, End Sequenced (ESTs)
BDGP DGC clones
Other clones
hide RNAi & Array Information
Linkouts
DRSC - Results from RNAi screens.
GenomeRNAi - GenomeRNAi – A database for cell-based and in vivo RNAi phenotypes and reagents
hide Antibody Information
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hide Discoverer
hide Etymology
"klotzchen" means "small building block" in German.
hide Identification
hide Relationship to Other Genes
Source for database identity of
Source for identity of: α-Spec CG1977
Source for database merge of
Source for merge of: klo α-Spec
Source for merge of: α-Spec anon-EST:fe2E2
Additional comments
One or more of the processed transcripts for this gene share(s) untranslated sequences with a transcript of an adjacent gene, but encode(s) a single open reading frame (ORF). The non-overlapping ORFs that share untranslated sequences are represented by dlt and α-Spec.
hide Other Comments
α-Spec functions, with β-Spec, at the presynapse as an essential presynaptic scaffold that may link synaptic cell adhesion with the stabilization of the underlying microtubule cytoskeleton.
dsRNA made from templates generated with primers directed against this gene tested in RNAi screen for effects on Kc167 and S2R+ cell morphology.
The dlt open reading frame is located within the first intron of α-Spec and the two genes share a common first untranslated exon. Overall orientation not stated: Patj- CG12020- Cdc37- α-Spec+ dlt+ α-Spec+
Spectrin is necessary for the capture and tethering of membrane associated proteins required for presynaptic neurotransmitter release.
The absence of spectrins disrupts neurotransmission but does not alter postsynaptic glutamate receptor field function or the ultrastructural localization of presynaptic vesicles. The subcellular location of many synaptic proteins is affected.
Four EMS induced alleles were identified in a screen for mutations affecting commissure formation in the CNS of the embryo.
α-Spec is required for ovarian follicle monolayer integrity. Elimination of α-Spec from follicle cells does not appear to prevent the assembly of conventional β-Spec and Ank products at the lateral domain of the follicle cell plasma membrane. However α-Spec is required for the correct localization of ΒH-spectrin to the apical surface.
The α-Spec gene product is a component of both fusomes and spectrosomes.
Clonal analysis demonstrates α-Spec is required in the germline (but not in the follicle cells) for cyst formation and oocyte differentiation. Its role in each process is distinct from that of hts protein. The organisation of membrane skeletal proteins is more dependent on α-Spec in the fusome than at the plasma membrane in other cells. The fusome and associated membrane skeleton play a central role in regulating the divisions and differentiation of cyst cells.
The results of clonal analysis suggest that spectrin is involved in the spatial arrangement of the follicle cell population during oocyte development.
The hts and α-Spec products are components of the fusome, which is required for ovarian cyst formation.
Recombinant proteins constructs of α-Spec and β-Spec, whose primary structures correspond to the regions required for tail end interchain binding (segments 19-22 of α-Spec and segments 1-4 of β-Spec), demonstrate that interchain binding depends on multiple sites within both the nonrepetitive segments and adjacent repetitive segments of both chains.
The structure of one of the repetitive segments of α-Spec has been determined at 1.8 angstrom resolution. The segment consists of a three helix bundle. Hydrophobic interactions between two tandem segments may constrain intersegment flexibility.
Various regions of the α-Spec molecule exhibit structural autonomy thus enabling fragments of the molecule to fold properly when expressed in bacteria. Results localise the calmodulin binding and calcium binding sites within specific segments of the protein.
Single repetitive motifs and pairs of motifs can fold into stable conformations similar to that of native α-Spec when their N-terminal ends are 26 residues downstream of the residue that has usually been designated to be the first position of each repetitive motif.
Mutant hemizygotes are larval lethal; dying in the first or (rarely) second instar.
hide External Crossreferences & Linkouts
Sequence Crossreferences
RefSeq (Transcripts)
RefSeq (Proteins)
Entrez Gene - A searchable database of RefSeq genes.
Other Crossreferences
InterPro domains - A database of protein families, domains, and functional sites
PDB - Protein Data Bank. An information portal to biological macromolecular structures
Linkouts
BioGRID - A database of protein and genetic interactions
DroID - A comprehensive database of gene and protein interactions.
DRSC - Results from RNAi screens.
FLIGHT - Cell culture data for RNAi and other high-throughput technologies
FlyMine - Integrated genomics database for Drosophila, Anopheles, and C.elegans
GenomeRNAi - GenomeRNAi – A database for cell-based and in vivo RNAi phenotypes and reagents
InParanoid A subset of ortholog calls from InParanoid.
Interactive Fly - A cyberspace guide to Drosophila development and metazoan evolution
InterologFinder Protein-protein interactions (PPI) from both known and predicted PPI data sets.
modMine - Data generated by the modENCODE project.
OrthoDB (Arthropod subset) The hierarchical catalog of eukaryotic orthologs.
hide Synonyms & Secondary IDs ( 40 )
Reported As
Symbol Synonym
alpha Spectrin
anon-EST:fe2E2
 
Name Synonym
&agr-spectrin
alpha spectrin
Alpha-spectrin
Alpha Spectrin
alpha-spectrin II
anon-fast-evolving-2E2
 
α Spectrin
 
Secondary FlyBase IDs
  • FBgn0002180
  • FBgn0003470
  • FBgn0025219
  • FBgn0026231
  • FBgn0064128
hide References ( 339 )
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hide Recent research papers ( 19 )
Lee and Thomas, 2011, Mech. Dev. 128(1-2): 116--128
Rac1 modulation of the apical domain is negatively regulated by β(Heavy)-spectrin. [FBrf0213021]
Parrott et al., 2011, PLoS ONE 6(9): e25087
Nucleoporin98-96 Function Is Required for Transit Amplification Divisions in the Germ Line of Drosophila melanogaster. [FBrf0216255]
Senger et al., 2011, Development 138(10): 2133--2142
The nucleoporin Seh1 forms a complex with Mio and serves an essential tissue-specific function in Drosophila oogenesis. [FBrf0213566]
Stümpges and Behr, 2011, FEBS Lett. 585(20): 3316--3321
Time-specific regulation of airway clearance by the Drosophila J-domain transmembrane protein Wurst. [FBrf0216409]
Fabian et al., 2010, Mol. Biol. Cell 21(9): 1546--1555
Phosphatidylinositol 4,5-bisphosphate directs spermatid cell polarity and exocyst localization in Drosophila. [FBrf0210667]
Foley et al., 2010, Biol. Letts 6(1): 102--105
Does segregating variation in sexual or microhabitat preferences lead to non-random mating within a population of Drosophila melanogaster? [FBrf0209672]
Haglund et al., 2010, Curr. Biol. 20(10): 944--950
Cindr interacts with anillin to control cytokinesis in Drosophila melanogaster. [FBrf0210868]
Kaplan and Tolwinski, 2010, J. Cell Sci. 123(18): 3157--3165
Spatially defined Dsh-Lgl interaction contributes to directional tissue morphogenesis. [FBrf0211705]
Khanna et al., 2010, BMC Genomics 11(1): 302
Towards a membrane proteome in Drosophila: a method for the isolation of plasma membrane. [FBrf0210923]
Leatherman and Dinardo, 2010, Nat. Cell Biol. 12(8): 806--811
Germline self-renewal requires cyst stem cells and stat regulates niche adhesion in Drosophila testes. [FBrf0211422]
Lewandowski et al., 2010, Dev. Biol. 339(2): 307--319
Mago Nashi, Tsunagi/Y14, and Ranshi form a complex that influences oocyte differentiation in Drosophila melanogaster. [FBrf0210119]
Liu et al., 2010, Sci. Signal. 3(132): ra57
The Drosophila Female Germline Stem Cell Lineage Acts to Spatially Restrict DPP Function Within the Niche. [FBrf0211426]
Mazock et al., 2010, Mol. Biol. Cell 21(16): 2860--2868
Transgene Rescue Identifies an Essential Function for Drosophila {beta} Spectrin in the Nervous System and a Selective Requirement for Ankyrin-2-binding Activity. [FBrf0211527]
Mosca and Schwarz, 2010, Nat. Neurosci. 13(8): 935--943
The nuclear import of Frizzled2-C by Importins-beta11 and alpha2 promotes postsynaptic development. [FBrf0211361]
Ong and Tan, 2010, Dev. Biol. 337(1): 84--98
Germline cyst formation and incomplete cytokinesis during Drosophila melanogaster oogenesis. [FBrf0209400]
Ong et al., 2010, Dev. Biol. 346(2): 161--169
Mutations of DMYPT cause over constriction of contractile rings and ring canals during Drosophila germline cyst formation. [FBrf0211890]
Renault et al., 2010, Development 137(11): 1815--1823
Lipid phosphate phosphatase activity regulates dispersal and bilateral sorting of embryonic germ cells in Drosophila. [FBrf0210764]
Robinson et al., 2010, Mech. Ageing Dev. 131(9): 584--590
Insights into aging through measurements of the Drosophila proteome as a function of temperature. [FBrf0211959]
Ueyama et al., 2010, PLoS ONE 5(7): e11557
Increased apoptosis of myoblasts in Drosophila model for the walker-warburg syndrome. [FBrf0211260]
hide Recent reviews (0)
All reviews listed in FlyBase were published before 2010