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General Information
Symbol
Dmel\bbg
Species
D. melanogaster
Name
big bang
Annotation Symbol
CG42230
Feature Type
FlyBase ID
FBgn0087007
Gene Model Status
Stock Availability
Gene Snapshot
In progress.Contributions welcome.
Also Known As
C96
Key Links
Genomic Location
Cytogenetic map
Sequence location
3L:14,412,828..14,536,276 [-]
Recombination map
3-42
Sequence
Other Genome Views
The following external sites may use different assemblies or annotations than FlyBase.
Function
GO Summary Ribbons
Protein Family (UniProt)
-
Protein Signatures (InterPro)
Molecular Function (GO)
[Detailed GO annotations]
Experimental Evidence
-
Predictions / Assertions
-
Summaries
Gene Model and Products
Number of Transcripts
8
Number of Unique Polypeptides
5

Please see the GBrowse view of Dmel\bbg or the JBrowse view of Dmel\bbg 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
Comments on Gene Model
Gene model reviewed during 5.39
Gene model supported by FBrf0193930
Gene model reviewed during 5.46
Low-frequency RNA-Seq exon junction(s) not annotated.
Gene model reviewed during 5.55
Sequence Ontology: Class of Gene
Transcript Data
Annotated Transcripts
Name
FlyBase ID
RefSeq ID
Length (nt)
Assoc. CDS (aa)
FBtr0273422
8691
2637
FBtr0273423
3949
1101
FBtr0273424
4131
1033
FBtr0273425
4221
1033
FBtr0273426
3960
1033
FBtr0273428
4159
1095
FBtr0273427
5997
1842
FBtr0308596
8707
2637
Additional Transcript Data and Comments
Reported size (kB)
Comments
External Data
Crossreferences
Polypeptide Data
Annotated Polypeptides
Name
FlyBase ID
Predicted MW (kDa)
Length (aa)
Theoretical pI
RefSeq ID
GenBank
FBpp0271930
288.0
2637
6.04
FBpp0271931
118.7
1101
9.82
FBpp0271932
111.5
1033
9.54
FBpp0271933
111.5
1033
9.54
FBpp0271934
111.5
1033
9.54
FBpp0271936
118.0
1095
9.78
FBpp0271935
200.6
1842
5.79
FBpp0300820
288.0
2637
6.04
Polypeptides with Identical Sequences

The group(s) of polypeptides indicated below share identical sequence to each other.

2637 aa isoforms: bbg-PC, bbg-PK
1033 aa isoforms: bbg-PF, bbg-PG, bbg-PH
Additional Polypeptide Data and Comments
Reported size (kDa)
Comments
External Data
Crossreferences
InterPro - A database of protein families, domains and functional sites
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\bbg using the Feature Mapper tool.

External Data
Crossreferences
Eukaryotic Promoter Database - A collection of databases of experimentally validated promoters for selected model organisms.
Linkouts
Gene Ontology (5 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 (2 terms)
CV Term
Evidence
References
Terms Based on Predictions or Assertions (0 terms)
Cellular Component (3 terms)
Terms Based on Experimental Evidence (3 terms)
CV Term
Evidence
References
inferred from direct assay
inferred from direct assay
inferred from direct assay
Terms Based on Predictions or Assertions (0 terms)
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
in situ
Stage
Tissue/Position (including subcellular localization)
Reference
dorsal ectoderm anlage

Comment: anlage in statu nascendi

posterior ectoderm anlage

Comment: anlage in statu nascendi

antennal anlage in statu nascendi

Comment: reported as procephalic ectoderm anlage in statu nascendi

dorsal head epidermis anlage in statu nascendi

Comment: reported as procephalic ectoderm anlage in statu nascendi

visual anlage in statu nascendi

Comment: reported as procephalic ectoderm anlage in statu nascendi

northern blot
Stage
Tissue/Position (including subcellular localization)
Reference
RT-PCR
Stage
Tissue/Position (including subcellular localization)
Reference
Additional Descriptive Data
During embryogenesis, bbg transcript is predominantly expressed in the developing gut. bbg transcript is first detected at embryonic stage 5, in the posterior endoderm anlage. bbg transcript is expressed in posterior midgut primordium by stage 6, in the invaginating hindgut primordium by stage 7, in the anterior midgut primordium at stages 9-10, and in the forgut primordium by stages 11-12. Gut expression is maintained though late embryogenesis, and becomes restricted to the pharynx and proventriculus at late embryonic stages. bbg transcript expression in the dorsal ectoderm begins at embryonic stage 6; this expression is restricted to the dorsal edge of the dorsal ectoderm by embryonic stage 9-10. In the wing disc, bbg transcript is expressed at the presumptive wing margin, and in a small stripe perpendicular to the wing margin in the dorsal wing pouch. bbg transcript is expressed at the dorsal-ventral compartment boundary of the haltere disc. bbg transcript is expressed in a pair of cell clusters near the center of the leg discs; at the medial side of the antennal disc; in a ring-shaped pattern in the larval optic lobe; and at and posterior to the morphogenetic furrow of the eye disc. bbg transcript expression exhibits isoform-specificity at embryonic and larval stages.
Marker for
 
Subcellular Localization
CV Term
Polypeptide Expression
immunolocalization
Stage
Tissue/Position (including subcellular localization)
Reference
mass spectroscopy
Stage
Tissue/Position (including subcellular localization)
Reference
Additional Descriptive Data
bbg protein is localized to the apical and lateral sides of gut epithelial cells.
During oogenesis, bbg protein is expressed in the profollicular mesoderm, a layer of follicle cells that separates the germline cyst found at the posterior end of the germarium, from the anterior neighbouring younger cyst; strongly expressed in polar follicle cells; weakly expressed in somatic follicle cells surrounding early egg chambers; in follicle cells surrounding the oocyte; and in the oocyte nucleus. During embryogenesis, bbg protein is predominantly expressed in the developing gut. bbg protein is first detected at embryonic stage 6, in the posterior midgut primordium. bbg protein is expressed in the invaginating hindgut primordium by stage 7, in the anterior midgut primordium at stages 9-10, and in the forgut primordium by stages 11-12. Gut expression is maintained though late embryogenesis, and becomes restricted to the pharynx and proventriculus at late embryonic stages. bbg protein expression in the dorsal ectoderm begins at embryonic stage 6; this expression is restricted to the dorsal edge of the dorsal ectoderm by embryonic stage 9-10. In the wing disc, bbg protein is expressed at the presumptive wing margin, and in a similar pattern in the haltere disc. bbg protein is expressed in a pair of cell clusters near the center of the leg discs; at the medial side of the antennal disc; in a ring-shaped pattern in the larval optic lobe; and at and posterior to the morphogenetic furrow of the eye disc. During pupal eye development, bbg protein is also specifically and dynamically expressed in cone cells, mechanosensory bristle cells, and in secondary and tertiary pigment cells as each cell type becomes specified.
Marker for
 
Subcellular Localization
CV Term
Evidence
References
inferred from direct assay
inferred from direct assay
inferred from direct assay
Expression Deduced from Reporters
Reporter: P{GawB}bbgC96
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\bbg 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
FLIGHT - Cell culture data for RNAi and other high-throughput technologies
FlyAtlas - Adult expression by tissue, using Affymetrix Dros2 array
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) 1-3
  • Stages(s) 4-6
  • Stages(s) 7-8
  • Stages(s) 9-10
  • Stages(s) 11-12
  • Stages(s) 13-16
Alleles, Insertions, and Transgenic Constructs
Classical and Insertion Alleles ( 50 )
For All Classical and Insertion Alleles Show
 
Other relevant insertions
Transgenic Constructs ( 8 )
For All Alleles Carried on Transgenic Constructs Show
Transgenic constructs containing/affecting coding region of bbg
Transgenic constructs containing regulatory region of bbg
Deletions and Duplications ( 1 )
Phenotypes
Orthologs
Human Orthologs (via DIOPT v7.1)
Homo sapiens (Human) (13)
Species\Gene Symbol
Score
Best Score
Best Reverse Score
Alignment
Complementation?
Transgene?
3 of 15
Yes
Yes
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
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
Model Organism Orthologs (via DIOPT v7.1)
Mus musculus (laboratory mouse) (15)
Species\Gene Symbol
Score
Best Score
Best Reverse Score
Alignment
Complementation?
Transgene?
4 of 15
Yes
Yes
3 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
No
1 of 15
No
No
1 of 15
No
Yes
1 of 15
No
No
1 of 15
No
No
1 of 15
No
Yes
1 of 15
No
No
1 of 15
No
No
1 of 15
No
No
Rattus norvegicus (Norway rat) (13)
2 of 13
Yes
No
2 of 13
Yes
Yes
1 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
1 of 13
No
No
1 of 13
No
No
1 of 13
No
No
1 of 13
No
Yes
1 of 13
No
No
Xenopus tropicalis (Western clawed frog) (5)
1 of 12
Yes
No
1 of 12
Yes
Yes
1 of 12
Yes
No
1 of 12
Yes
No
1 of 12
Yes
No
Danio rerio (Zebrafish) (14)
3 of 15
Yes
Yes
2 of 15
No
Yes
1 of 15
No
Yes
1 of 15
No
No
1 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
No
1 of 15
No
Yes
1 of 15
No
No
1 of 15
No
No
1 of 15
No
No
Caenorhabditis elegans (Nematode, roundworm) (15)
1 of 15
Yes
Yes
1 of 15
Yes
Yes
1 of 15
Yes
Yes
1 of 15
Yes
Yes
1 of 15
Yes
No
1 of 15
Yes
Yes
1 of 15
Yes
Yes
1 of 15
Yes
Yes
1 of 15
Yes
No
1 of 15
Yes
No
1 of 15
Yes
Yes
1 of 15
Yes
Yes
1 of 15
Yes
No
1 of 15
Yes
No
1 of 15
Yes
No
Arabidopsis thaliana (thale-cress) (0)
No records found.
Saccharomyces cerevisiae (Brewer's yeast) (0)
No records found.
Schizosaccharomyces pombe (Fission yeast) (0)
No records found.
Orthologs in Drosophila Species (via OrthoDB v9.1) ( EOG091900O9 )
Organism
Common Name
Gene
AAA Syntenic Ortholog
Multiple Dmel Genes in this Orthologous Group
Drosophila melanogaster
fruit fly
Drosophila suzukii
Spotted wing Drosophila
Drosophila simulans
Drosophila sechellia
Drosophila erecta
Drosophila yakuba
Drosophila ananassae
Drosophila pseudoobscura pseudoobscura
Drosophila persimilis
Drosophila willistoni
Drosophila virilis
Drosophila mojavensis
Drosophila grimshawi
Orthologs in non-Drosophila Dipterans (via OrthoDB v9.1) ( None identified )
No non-Drosophilid orthologies identified
Orthologs in non-Dipteran Insects (via OrthoDB v9.1) ( None identified )
No non-Dipteran orthologies identified
Orthologs in non-Insect Arthropods (via OrthoDB v9.1) ( None identified )
No non-Insect Arthropod orthologies identified
Orthologs in non-Arthropod Metazoa (via OrthoDB v9.1) ( None identified )
No non-Arthropod Metazoa orthologies identified
Paralogs
Paralogs (via DIOPT v7.1)
Drosophila melanogaster (Fruit fly) (19)
2 of 10
2 of 10
2 of 10
1 of 10
1 of 10
1 of 10
1 of 10
1 of 10
1 of 10
1 of 10
1 of 10
1 of 10
1 of 10
1 of 10
1 of 10
1 of 10
1 of 10
1 of 10
1 of 10
Human Disease Associations
FlyBase Human Disease Model Reports
Disease Model Summary Ribbon
Disease Ontology (DO) Annotations
Models Based on Experimental Evidence ( 1 )
Allele
Disease
Evidence
References
Potential Models Based on Orthology ( 0 )
Human Ortholog
Disease
Evidence
References
Modifiers Based on Experimental Evidence ( 0 )
Allele
Disease
Interaction
References
Comments on Models/Modifiers Based on Experimental Evidence ( 0 )
 
Disease Associations of Human Orthologs (via DIOPT v7.1 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
DroID - A comprehensive database of gene and protein interactions.
InterologFinder - Protein-protein interactions (PPI) from both known and predicted PPI data sets.
MIST (protein-protein) - An integrated Molecular Interaction Database
Pathways
Gene Group - Pathway Membership (FlyBase)
External Data
Linkouts
SignaLink - A signaling pathway resource with multi-layered regulatory networks.
Genomic Location and Detailed Mapping Data
Chromosome (arm)
3L
Recombination map
3-42
Cytogenetic map
Sequence location
3L:14,412,828..14,536,276 [-]
FlyBase Computed Cytological Location
Cytogenetic map
Evidence for location
70E1-70D7
Limits computationally determined from genome sequence between P{PZ}l(3)70Da02402&P{PZ}btl00208 and P{PZ}Mpcp00564
Experimentally Determined Cytological Location
Cytogenetic map
Notes
References
70D-70D
(determined by in situ hybridisation)
Experimentally Determined Recombination Data
Location
Left of (cM)
Right of (cM)
Notes
Stocks and Reagents
Stocks (45)
Genomic Clones (63)
cDNA Clones (153)
 

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 sequences
BDGP DGC clones
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
 
Other Information
Relationship to Other Genes
Source for database identify of
Source for identity of: bbg CG9587
Source for database merge of
Source for merge of: bbg CG9598 C96
Source for merge of: bbg CG9598
Additional comments
Annotations CG9598 and CG9587 merged as CG42230 in release 5.5 of the genome annotation.
Other Comments
dsRNA made from templates generated with primers directed against this gene tested in RNAi screen for effects on Kc167 and S2R+ cell morphology.
Origin and Etymology
Discoverer
Etymology
The gene is named "big bang" based on the fact that the gene is quite large, and mutants all appear to be mildly bang-sensitive.
Identification
External Crossreferences and Linkouts ( 96 )
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/TrEMBL - Automatically annotated and unreviewed records of protein sequence and functional information
Other crossreferences
BDGP expression data - Patterns of gene expression in Drosophila embryogenesis
Drosophila Genomics Resource Center - Drosophila Genomics Resource Center (DGRC) cDNA clones
Eukaryotic Promoter Database - A collection of databases of experimentally validated promoters for selected model organisms.
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
InterPro - A database of protein families, domains and functional sites
KEGG Genes - Molecular building blocks of life in the genomic space.
modMine - A data warehouse for the modENCODE project
SignaLink - A signaling pathway resource with multi-layered regulatory networks.
Linkouts
DroID - A comprehensive database of gene and protein interactions.
DRSC - Results frm RNAi screens
FLIGHT - Cell culture data for RNAi and other high-throughput technologies
FlyAtlas - Adult expression by tissue, using Affymetrix Dros2 array
FlyMine - An integrated database for Drosophila genomics
InterologFinder - Protein-protein interactions (PPI) from both known and predicted PPI data sets.
MIST (protein-protein) - An integrated Molecular Interaction Database
Synonyms and Secondary IDs (7)
Datasets (0)
Study focus (0)
Experimental Role
Project
Project Type
Title
References (61)