Open Close
General Information
Symbol
Dmel\Act57B
Species
D. melanogaster
Name
Actin 57B
Annotation Symbol
CG10067
Feature Type
FlyBase ID
FBgn0000044
Gene Model Status
Stock Availability
Gene Summary
Actin 57B (Act57B) is one of several actin genes in the Drosophila genome, and one of the few that encode myofibrillar actin. This essential gene is a transcriptional target of Mef2 and Cf2 and is expressed in all embryonic muscles and a subset of adult muscle. [Date last reviewed: 2018-09-06] (FlyBase Gene Snapshot)
Also Known As

actin, F-actin, Act57A, C

Key Links
Genomic Location
Cytogenetic map
Sequence location
Recombination map
2-92
RefSeq locus
NT_033778 REGION:20944021..20946431
Sequence
Other Genome Views
The following external sites may use different assemblies or annotations than FlyBase.
Function
GO Summary Ribbons
Gene Ontology (GO) Annotations (3 terms)
Molecular Function (0 terms)
Terms Based on Experimental Evidence (0 terms)
Terms Based on Predictions or Assertions (0 terms)
Biological Process (2 terms)
Terms Based on Experimental Evidence (1 term)
CV Term
Evidence
References
inferred from mutant phenotype
Terms Based on Predictions or Assertions (1 term)
CV Term
Evidence
References
inferred from biological aspect of ancestor with PANTHER:PTN002631617
(assigned by GO_Central )
Cellular Component (1 term)
Terms Based on Experimental Evidence (1 term)
CV Term
Evidence
References
located_in plasma membrane
inferred from high throughput direct assay
Terms Based on Predictions or Assertions (0 terms)
Gene Group (FlyBase)
Protein Family (UniProt)
Belongs to the actin family. (P53501)
Summaries
Gene Snapshot
Actin 57B (Act57B) is one of several actin genes in the Drosophila genome, and one of the few that encode myofibrillar actin. This essential gene is a transcriptional target of Mef2 and Cf2 and is expressed in all embryonic muscles and a subset of adult muscle. [Date last reviewed: 2018-09-06]
Gene Group (FlyBase)
ACTINS -
Actins are highly conserved eukaryotic filament-forming proteins that are major components of the cytoskeleton. Actin polymerisation is controlled by ATP binding and hydrolysis. Actins are involved in various cell processes including cell movement, muscle contraction, cell trafficking and mechanical support. (Adapted from PMID:21859859).
Protein Function (UniProtKB)
Actins are highly conserved proteins that are involved in various types of cell motility and are ubiquitously expressed in all eukaryotic cells. Multiple isoforms are involved in various cellular functions such as cytoskeleton structure, cell mobility, chromosome movement and muscle contraction.
(UniProt, P53501)
Phenotypic Description (Red Book; Lindsley and Zimm 1992)
Act57A
According to Fyrberg and Davidson, Act57A encodes the actin I protein isoform, which is the major actin species of larval intersegmental muscle; also encodes adult cephalic and abdominal muscle (Fyrberg, Mahaffy, Bond and Davidson, 1983, Cell 33: 115-33).
Gene Model and Products
Number of Transcripts
1
Number of Unique Polypeptides
1

Please see the JBrowse view of Dmel\Act57B for information on other features

To submit a correction to a gene model please use the Contact FlyBase form

Protein Domains (via Pfam)
Isoform displayed:
Pfam protein domains
InterPro name
classification
start
end
Protein Domains (via SMART)
Isoform displayed:
SMART protein domains
InterPro name
classification
start
end
Structure New Section
Protein 3D structure   (Predicted by AlphaFold)   (AlphaFold entry P53501)

If you don't see the viewer to the right, refresh your browser.
Model Confidence:
  • Very high (pLDDT > 90)
  • Confident (90 > pLDDT > 70)
  • Low (70 > pLDDT > 50)
  • Very low (pLDDT < 50)

AlphaFold produces a per-residue confidence score (pLDDT) between 0 and 100. Some regions with low pLDDT may be unstructured in isolation.

Comments on Gene Model

Gene model reviewed during 5.51

Gene model reviewed during 5.53

Sequence Ontology: Class of Gene
Transcript Data
Annotated Transcripts
Name
FlyBase ID
RefSeq ID
Length (nt)
Assoc. CDS (aa)
FBtr0071519
1724
376
Additional Transcript Data and Comments
Reported size (kB)

2 (northern blot)

1.85, 1.8 (northern blot)

Comments
External Data
Crossreferences
Polypeptide Data
Annotated Polypeptides
Name
FlyBase ID
Predicted MW (kDa)
Length (aa)
Theoretical pI
RefSeq ID
GenBank
FBpp0071448
41.8
376
5.05
Polypeptides with Identical Sequences

There is only one protein coding transcript and one polypeptide associated with this gene

Additional Polypeptide Data and Comments
Reported size (kDa)
Comments
External Data
Post Translational Modification

Oxidation of Met-45 by Mical to form methionine sulfoxide promotes actin filament depolymerization. Methionine sulfoxide is produced stereospecifically, but it is not known whether the (S)-S-oxide or the (R)-S-oxide is produced.

(UniProt, P53501)
Crossreferences
Linkouts
Sequences Consistent with the Gene Model
Nucleotide / Polypeptide Records
 
Mapped Features

Click to get a list of regulatory features (enhancers, TFBS, etc.) and gene disruptions (point mutations, indels, etc.) within or overlapping Dmel\Act57B using the Feature Mapper tool.

External Data
Crossreferences
Eukaryotic Promoter Database - A collection of databases of experimentally validated promoters for selected model organisms.
Linkouts
Expression Data
Expression Summary Ribbons
Colored tiles in ribbon indicate that expression data has been curated by FlyBase for that anatomical location. Colorless tiles indicate that there is no curated data for that location.
For complete stage-specific expression data, view the modENCODE Development RNA-Seq section under High-Throughput Expression below.
Transcript Expression
No Assay Recorded
Stage
Tissue/Position (including subcellular localization)
Reference
in situ
Stage
Tissue/Position (including subcellular localization)
Reference
somatic muscle primordium

Comment: reported as muscle system primordium

visceral muscle primordium

Comment: reported as muscle system primordium

RT-PCR
Stage
Tissue/Position (including subcellular localization)
Reference
Additional Descriptive Data

Act57B is expressed in the dorsal vessel and body wall muscles in both larvae and adults.

Expression dependent on Mef2 levels.

Act57B is enriched in border follicle cells relative to follicle cells.

Expression is observed in mesodermal tissues starting in late embryonic stages.

Act57B transcripts are most abundant in larval stages but are also found in embryos. They accumulate in the developing larval body wall musculature, first as segmentally arranged linear arrays and finally as square blocks of concentrated signal over the larval musculature. Labeling of the pharyngeal musculature is observed in embryos.

Marker for
 
Subcellular Localization
CV Term
Polypeptide Expression
mass spectroscopy
Stage
Tissue/Position (including subcellular localization)
Reference
Additional Descriptive Data
Marker for
 
Subcellular Localization
CV Term
Evidence
References
located_in plasma membrane
inferred from high throughput direct assay
Expression Deduced from Reporters
Stage
Tissue/Position (including subcellular localization)
Reference
Stage
Tissue/Position (including subcellular localization)
Reference
Stage
Tissue/Position (including subcellular localization)
Reference
Stage
Tissue/Position (including subcellular localization)
Reference
Stage
Tissue/Position (including subcellular localization)
Reference
High-Throughput Expression Data
Associated Tools

GBrowse - Visual display of RNA-Seq signals

View Dmel\Act57B in GBrowse 2
RNA-Seq by Region - Search RNA-Seq expression levels by exon or genomic region
Reference
See Gelbart and Emmert, 2013 for analysis details and data files for all genes.
Developmental Proteome: Life Cycle
Developmental Proteome: Embryogenesis
External Data and Images
Linkouts
BDGP expression data - Patterns of gene expression in Drosophila embryogenesis
DRscDB - A single-cell RNA-seq resource for data mining and data comparison across species
EMBL-EBI Single Cell Expression Atlas - Single cell expression across species
FlyAtlas - Adult expression by tissue, using Affymetrix Dros2 array
FlyAtlas2 - A Drosophila melanogaster expression atlas with RNA-Seq, miRNA-Seq and sex-specific data
Fly-FISH - A database of Drosophila embryo and larvae mRNA localization patterns
Flygut - An atlas of the Drosophila adult midgut
Images
FlyExpress - Embryonic expression images (BDGP data)
  • Stages(s) 4-6
  • Stages(s) 7-8
  • Stages(s) 9-10
  • Stages(s) 11-12
  • Stages(s) 13-16
Alleles, Insertions, Transgenic Constructs, and Aberrations
Classical and Insertion Alleles ( 4 )
For All Classical and Insertion Alleles Show
 
Other relevant insertions
Transgenic Constructs ( 22 )
For All Alleles Carried on Transgenic Constructs Show
Transgenic constructs containing/affecting coding region of Act57B
Transgenic constructs containing regulatory region of Act57B
Aberrations (Deficiencies and Duplications) ( 6 )
Inferred from experimentation ( 6 )
Gene partially disrupted in
Inferred from location ( 0 )
Alleles Representing Disease-Implicated Variants
Phenotypes
For more details about a specific phenotype click on the relevant allele symbol.
Lethality
Allele
Other Phenotypes
Allele
Phenotype manifest in
Allele
Orthologs
Human Orthologs (via DIOPT v8.0)
Homo sapiens (Human) (43)
Species\Gene Symbol
Score
Best Score
Best Reverse Score
Alignment
Complementation?
Transgene?
7 of 15
Yes
No
5  
5 of 15
No
No
5 of 15
No
No
1  
5 of 15
No
No
5 of 15
No
No
5 of 15
No
Yes
4 of 15
No
No
4 of 15
No
Yes
1  
4 of 15
No
No
4 of 15
No
No
3 of 15
No
Yes
3 of 15
No
No
3 of 15
No
No
3 of 15
No
No
3 of 15
No
No
1  
3 of 15
No
No
1  
3 of 15
No
Yes
2 of 15
No
No
2  
2 of 15
No
No
1  
2 of 15
No
No
2 of 15
No
No
2 of 15
No
No
2 of 15
No
No
2 of 15
No
No
1  
2 of 15
No
No
1  
2 of 15
No
No
2 of 15
No
Yes
2 of 15
No
Yes
2 of 15
No
Yes
2 of 15
No
Yes
2 of 15
No
Yes
2 of 15
No
Yes
1 of 15
No
No
1 of 15
No
No
1 of 15
No
No
1 of 15
No
No
1 of 15
No
Yes
1 of 15
No
No
1  
1 of 15
No
No
6  
1 of 15
No
Yes
1 of 15
No
Yes
1 of 15
No
Yes
1 of 15
No
Yes
Model Organism Orthologs (via DIOPT v8.0)
Mus musculus (laboratory mouse) (28)
Species\Gene Symbol
Score
Best Score
Best Reverse Score
Alignment
Complementation?
Transgene?
8 of 15
Yes
No
6 of 15
No
No
5 of 15
No
No
4 of 15
No
Yes
4 of 15
No
No
4 of 15
No
Yes
4 of 15
No
Yes
4 of 15
No
No
4 of 15
No
No
3 of 15
No
No
3 of 15
No
No
3 of 15
No
No
3 of 15
No
Yes
2 of 15
No
No
2 of 15
No
No
2 of 15
No
No
2 of 15
No
No
2 of 15
No
No
2 of 15
No
No
2 of 15
No
No
2 of 15
No
No
2 of 15
No
No
1 of 15
No
No
1 of 15
No
No
1 of 15
No
No
1 of 15
No
No
1 of 15
No
Yes
1 of 15
No
No
Rattus norvegicus (Norway rat) (30)
7 of 13
Yes
No
4 of 13
No
Yes
4 of 13
No
No
4 of 13
No
Yes
4 of 13
No
No
4 of 13
No
No
4 of 13
No
No
3 of 13
No
No
3 of 13
No
No
3 of 13
No
No
3 of 13
No
No
3 of 13
No
No
3 of 13
No
Yes
3 of 13
No
No
3 of 13
No
Yes
2 of 13
No
No
2 of 13
No
No
2 of 13
No
No
2 of 13
No
No
2 of 13
No
No
2 of 13
No
No
2 of 13
No
No
2 of 13
No
No
2 of 13
No
No
2 of 13
No
No
1 of 13
No
No
1 of 13
No
No
1 of 13
No
No
1 of 13
No
No
1 of 13
No
Yes
Xenopus tropicalis (Western clawed frog) (14)
6 of 12
Yes
No
5 of 12
No
No
3 of 12
No
Yes
3 of 12
No
Yes
3 of 12
No
No
3 of 12
No
Yes
3 of 12
No
No
2 of 12
No
No
2 of 12
No
No
2 of 12
No
No
1 of 12
No
Yes
1 of 12
No
No
1 of 12
No
No
1 of 12
No
Yes
Danio rerio (Zebrafish) (23)
6 of 15
Yes
No
6 of 15
Yes
No
4 of 15
No
Yes
4 of 15
No
Yes
4 of 15
No
No
4 of 15
No
Yes
4 of 15
No
No
4 of 15
No
Yes
3 of 15
No
Yes
3 of 15
No
No
2 of 15
No
No
2 of 15
No
No
2 of 15
No
No
2 of 15
No
No
2 of 15
No
No
2 of 15
No
No
2 of 15
No
No
1 of 15
No
No
1 of 15
No
No
1 of 15
No
No
1 of 15
No
Yes
Caenorhabditis elegans (Nematode, roundworm) (12)
8 of 15
Yes
No
6 of 15
No
No
6 of 15
No
No
3 of 15
No
No
3 of 15
No
No
3 of 15
No
No
2 of 15
No
No
2 of 15
No
No
1 of 15
No
No
1 of 15
No
No
1 of 15
No
Yes
1 of 15
No
No
Arabidopsis thaliana (thale-cress) (17)
7 of 9
Yes
No
7 of 9
Yes
No
7 of 9
Yes
No
7 of 9
Yes
No
7 of 9
Yes
No
7 of 9
Yes
No
7 of 9
Yes
No
3 of 9
No
No
2 of 9
No
No
2 of 9
No
No
2 of 9
No
No
1 of 9
No
No
1 of 9
No
No
1 of 9
No
No
1 of 9
No
Yes
1 of 9
No
Yes
1 of 9
No
No
Saccharomyces cerevisiae (Brewer's yeast) (9)
10 of 15
Yes
No
0  
3 of 15
No
No
2 of 15
No
No
2 of 15
No
No
1 of 15
No
No
1 of 15
No
No
1 of 15
No
No
1 of 15
No
Yes
1 of 15
No
No
Schizosaccharomyces pombe (Fission yeast) (4)
8 of 12
Yes
No
1 of 12
No
No
1 of 12
No
No
1 of 12
No
No
Other Organism Orthologs (via OrthoDB)
Paralogs
Paralogs (via DIOPT v8.0)
Drosophila melanogaster (Fruit fly) (14)
8 of 10
8 of 10
7 of 10
7 of 10
7 of 10
5 of 10
5 of 10
4 of 10
4 of 10
4 of 10
3 of 10
3 of 10
3 of 10
2 of 10
Human Disease Associations
FlyBase Human Disease Model Reports
Disease Model Summary Ribbon
Disease Ontology (DO) Annotations
Models Based on Experimental Evidence ( 5 )
Potential Models Based on Orthology ( 7 )
Modifiers Based on Experimental Evidence ( 0 )
Allele
Disease
Interaction
References
Disease Associations of Human Orthologs (via DIOPT v8.0 and OMIM)
Note that ortholog calls supported by only 1 or 2 algorithms (DIOPT score < 3) are not shown.
Homo sapiens (Human)
Gene name
Score
OMIM
OMIM Phenotype
DO term
Complementation?
Transgene?
Functional Complementation Data
Functional complementation data is computed by FlyBase using a combination of the orthology data obtained from DIOPT and OrthoDB and the allele-level genetic interaction data curated from the literature.
Interactions
Summary of Physical Interactions
esyN Network Diagram
Show neighbor-neighbor interactions:
Select Layout:
Legend:
Protein
RNA
Selected Interactor(s)
Interactions Browser

Please see the Physical Interaction reports below for full details
protein-protein
Physical Interaction
Assay
References
Summary of Genetic Interactions
esyN Network Diagram
esyN Network Key:
Suppression
Enhancement

Please look at the allele data for full details of the genetic interactions
Starting gene(s)
Interaction type
Interacting gene(s)
Reference
Starting gene(s)
Interaction type
Interacting gene(s)
Reference
External Data
Linkouts
BioGRID - A database of protein and genetic interactions.
DroID - A comprehensive database of gene and protein interactions.
MIST (protein-protein) - An integrated Molecular Interaction Database
Pathways
Signaling Pathways (FlyBase)
Metabolic Pathways
External Data
Linkouts
KEGG Pathways - Wiring diagrams of molecular interactions, reactions and relations.
Genomic Location and Detailed Mapping Data
Chromosome (arm)
2R
Recombination map
2-92
Cytogenetic map
Sequence location
FlyBase Computed Cytological Location
Cytogenetic map
Evidence for location
57B5-57B5
Limits computationally determined from genome sequence between P{lacW}l(2)k06409k06409&P{PZ}insc05475 and P{PZ}l(2)0780607806
Experimentally Determined Cytological Location
Cytogenetic map
Notes
References
57A-57A
(determined by in situ hybridisation)
57A-57C
(determined by in situ hybridisation)
57B-57B
(determined by in situ hybridisation)
Experimentally Determined Recombination Data
Location
Left of (cM)
Right of (cM)
Notes
Stocks and Reagents
Stocks (6)
Genomic Clones (20)
cDNA Clones (164)
 

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
Other clones
Drosophila Genomics Resource Center cDNA clones

For each fully sequenced cDNA the DGRC maintains various forms of the cDNA (e.g tagged or untagged) in several different host vectors for subsequent cloning and expression in Drosophila and Drosophila cell lines.

cDNA Clones, End Sequenced (ESTs)
RNAi and Array Information
Linkouts
DRSC - Results frm RNAi screens
GenomeRNAi - A database for cell-based and in vivo RNAi phenotypes and reagents
Antibody Information
Laboratory Generated Antibodies
 
Commercially Available Antibodies
 
Developmental Studies Hybridoma Bank - Monoclonal antibodies for use in research
Other Information
Relationship to Other Genes
Source for database identify of
Source for database merge of

Source for merge of: Act57B anon- EST:CL2c12

Additional comments

The Act5C gene may be derived from the Act57B gene by retroposition.

Other Comments

ChEST reveals this is a target of Mef2.

RNAi screen using dsRNA made from templates generated with primers directed against this gene causes a binucleation phenotype when assayed in Kc167 cells.

Age related changes in Act57B expression have been studied by Northern analysis.

Isolated from a subtractive cDNA library enriched in sequences expressed in the mesoderm.

An Act57B cDNA has been cloned and sequenced. Act57B is expressed in the mesoderm.

EST RE38067 is chimeric; the 5' portion (BI241073) matches part of AE003430 on the opposite strand to GlcAT-I, the 3' portion (CK133782) corresponds to part of Act57B.

Sequence analysis demonstrates insect muscle actins form a distinct family of closely related proteins significantly diverged from cytoplasmic actins.

Translation of actin RNA in early embryos injected with initiation factors has been studied.

Encodes the actin I protein isoform, which is the major actin species of larval intersegmental muscle and adult cephalic and abdominal muscle (FBrf0038990).

Origin and Etymology
Discoverer
Etymology
Identification
External Crossreferences and Linkouts ( 48 )
Sequence Crossreferences
NCBI Gene - Gene integrates information from a wide range of species. A record may include nomenclature, Reference Sequences (RefSeqs), maps, pathways, variations, phenotypes, and links to genome-, phenotype-, and locus-specific resources worldwide.
GenBank Nucleotide - A collection of sequences from several sources, including GenBank, RefSeq, TPA, and PDB.
GenBank Protein - A collection of sequences from several sources, including translations from annotated coding regions in GenBank, RefSeq and TPA, as well as records from SwissProt, PIR, PRF, and PDB.
RefSeq - A comprehensive, integrated, non-redundant, well-annotated set of reference sequences including genomic, transcript, and protein.
UniProt/GCRP - The gene-centric reference proteome (GCRP) provides a 1:1 mapping between genes and UniProt accessions in which a single 'canonical' isoform represents the product(s) of each protein-coding gene.
UniProt/Swiss-Prot - Manually annotated and reviewed records of protein sequence and functional information
Other crossreferences
AlphaFold DB - AlphaFold provides open access to protein structure predictions for the human proteome and other key proteins of interest, to accelerate scientific research.
BDGP expression data - Patterns of gene expression in Drosophila embryogenesis
Drosophila Genomics Resource Center - Drosophila Genomics Resource Center (DGRC) cDNA clones
DRscDB - A single-cell RNA-seq resource for data mining and data comparison across species
EMBL-EBI Single Cell Expression Atlas - Single cell expression across species
Eukaryotic Promoter Database - A collection of databases of experimentally validated promoters for selected model organisms.
FlyAtlas - Adult expression by tissue, using Affymetrix Dros2 array
FlyAtlas2 - A Drosophila melanogaster expression atlas with RNA-Seq, miRNA-Seq and sex-specific data
Fly-FISH - A database of Drosophila embryo and larvae mRNA localization patterns
Flygut - An atlas of the Drosophila adult midgut
GenomeRNAi - A database for cell-based and in vivo RNAi phenotypes and reagents
iBeetle-Base - RNAi phenotypes in the red flour beetle (Tribolium castaneum)
KEGG Genes - Molecular building blocks of life in the genomic space.
MARRVEL_MODEL - MARRVEL (model organism gene)
modMine - A data warehouse for the modENCODE project
SignaLink - A signaling pathway resource with multi-layered regulatory networks.
Linkouts
BioGRID - A database of protein and genetic interactions.
DroID - A comprehensive database of gene and protein interactions.
DRSC - Results frm RNAi screens
Developmental Studies Hybridoma Bank - Monoclonal antibodies for use in research
FlyCyc Genes - Genes from a BioCyc PGDB for Dmel
FlyMine - An integrated database for Drosophila genomics
KEGG Pathways - Wiring diagrams of molecular interactions, reactions and relations.
MIST (protein-protein) - An integrated Molecular Interaction Database
Synonyms and Secondary IDs (27)
Reported As
Symbol Synonym
BEST:RE38067
anon-EST:CL2c12
chr2R:16452771..16452966
Secondary FlyBase IDs
  • FBgn0019861
  • FBgn0050294
  • FBgn0065030
Datasets (8)
Study focus (0)
Experimental Role
Project
Project Type
Title
Study result (8)
Result
Result Type
Title
Clustering analysis of hemocytes from non-infested third instar larvae
Clustering analysis of hemocytes from wasp-infested third instar larvae
Clustering analysis of lymph gland cells from non-infested larvae at 72 h after egg-laying
Clustering analysis of lymph gland cells from non-infested larvae at 96 h after egg-laying
Clustering analysis of lymph gland cells from non-infested larvae at 120 h after egg-laying
Clustering analysis of lymph gland cells from wasp-infested larvae at 96 h after egg-laying
Clustering analysis of circulating hemocytes from non-infested larvae at 96 h after egg-laying
Clustering analysis of circulating hemocytes from non-infested larvae at 120 h after egg-laying
References (217)