FB2026_01 , released March 12, 2026
FB2026_01 , released March 12, 2026
Gene: Dmel\HDAC3
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General Information
Symbol
Dmel\HDAC3
Species
D. melanogaster
Name
Histone deacetylase 3
Annotation Symbol
CG2128
Feature Type
FlyBase ID
FBgn0025825
Gene Model Status
Stock Availability
Gene Summary
Histone deacetylase 3 (HDAC3) encodes a histone deacetylase involved in chromatin silencing. It controls cell growth through apoptosis suppression by regulating transcription of hid. [Date last reviewed: 2019-03-07] (FlyBase Gene Snapshot)
Also Known As

dHDAC3, HDAC

Key Links
Genomic Location
Cytogenetic map
Sequence location
Recombination map
3-47.5
RefSeq locus
NT_033777 REGION:5472810..5474600
Sequence
Genomic Maps
Other Genome Views
The following external sites may use different assemblies or annotations than FlyBase.
Function
Gene Ontology (GO) Annotations (17 terms)
Molecular Function (7 terms)
Terms Based on Experimental Evidence (7 terms)
CV Term
Evidence
References
inferred from direct assay
inferred from physical interaction with FLYBASE:Smyd4-2; FB:FBgn0036282
inferred from physical interaction with FLYBASE:ebi; FB:FBgn0263933
inferred from physical interaction with UniProtKB:P25439
inferred from physical interaction with UniProtKB:Q9VQ56
Terms Based on Predictions or Assertions (1 term)
CV Term
Evidence
References
inferred from biological aspect of ancestor with PANTHER:PTN008143312
inferred from electronic annotation with InterPro:IPR003084
non-traceable author statement
Biological Process (7 terms)
Terms Based on Experimental Evidence (6 terms)
CV Term
Evidence
References
inferred from genetic interaction with UniProtKB:Q9VQ56
inferred from mutant phenotype
inferred from genetic interaction with FLYBASE:HDAC1; FB:FBgn0015805
inferred from mutant phenotype
inferred from genetic interaction with UniProtKB:P25439
inferred from genetic interaction with UniProtKB:Q9VQ56
inferred from mutant phenotype
inferred from direct assay
Terms Based on Predictions or Assertions (1 term)
CV Term
Evidence
References
inferred from biological aspect of ancestor with PANTHER:PTN008143312
Cellular Component (3 terms)
Terms Based on Experimental Evidence (2 terms)
CV Term
Evidence
References
located_in cytoplasm
inferred from direct assay
located_in nucleus
inferred from direct assay
Terms Based on Predictions or Assertions (1 term)
CV Term
Evidence
References
inferred from biological aspect of ancestor with PANTHER:PTN000835657
Gene Group (FlyBase)
Protein Family (UniProt)
-
Summaries
Gene Snapshot
Histone deacetylase 3 (HDAC3) encodes a histone deacetylase involved in chromatin silencing. It controls cell growth through apoptosis suppression by regulating transcription of hid. [Date last reviewed: 2019-03-07]
Gene Group (FlyBase)
RPD3/HDA1 LYSINE DEACETYLASES -
The RPD3/HDA1 family are Zn2+-dependent lysine deacetylases that share a common catalytic core domain. (Adapted from FBrf0159755).
Summary (Interactive Fly)

chromatin component - deacetylates histone H4 - counteracts the overgrowth induced by InR, PI3K or S6K over-expression - a target of the PI3K pathway - helps retain chromatin compaction and gene silencing in nuclear lamina-interacting multigenic chromatin domains

Gene Model and Products
Number of Transcripts
1
Number of Unique Polypeptides
1

Please see the JBrowse view of Dmel\HDAC3 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
Protein 3D structure   (Predicted by AlphaFold)   (AlphaFold entry Q7KTS4)

If you don't see a structure in the viewer, 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.

Experimentally Determined Structures
Crossreferences
Comments on Gene Model

Gene model reviewed during 5.49

Gene model reviewed during 5.54

Transcript Data
Annotated Transcripts
Name
FlyBase ID
RefSeq ID
Length (nt)
Assoc. CDS (aa)
FBtr0078767
1660
438
Additional Transcript Data and Comments
Reported size (kB)

1.746 (longest cDNA)

Comments
External Data
Crossreferences
Polypeptide Data
Annotated Polypeptides
Name
FlyBase ID
Predicted MW (kDa)
Length (aa)
Theoretical pI
UniProt
RefSeq ID
GenBank
FBpp0078414
49.6
438
5.07
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
Linkouts
Sequences Consistent with the Gene Model
Mapped Features

Click to get a list of regulatory features (enhancers, TFBS, etc.) and gene disruptions (point mutations, indels, etc.) within or overlapping Dmel\HDAC3 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
Testis-specificity index

The testis specificity index was calculated from modENCODE tissue expression data by Vedelek et al., 2018 to indicate the degree of testis enrichment compared to other tissues. Scores range from -2.52 (underrepresented) to 5.2 (very high testis bias).

NA

Transcript Expression
Polypeptide Expression
Additional Descriptive Data
Marker for
 
Subcellular Localization
CV Term
Evidence
References
located_in cytoplasm
inferred from direct assay
located_in nucleus
inferred from direct assay
Expression Deduced from Reporters
High-Throughput Expression Data
Associated Tools

JBrowse - Visual display of RNA-Seq signals

View Dmel\HDAC3 in JBrowse
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
Alleles, Insertions, Transgenic Constructs, and Aberrations
Classical and Insertion Alleles ( 10 )
For All Classical and Insertion Alleles Show
 
Other relevant insertions
Transgenic Constructs ( 20 )
For All Alleles Carried on Transgenic Constructs Show
Transgenic constructs containing/affecting coding region of HDAC3
Transgenic constructs containing regulatory region of HDAC3
Aberrations (Deficiencies and Duplications) ( 1 )
Inferred from experimentation ( 1 )
Gene partially disrupted in
Inferred from location ( 2 )
Variants
Variant Molecular Consequences
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 v9.1)
Species\Gene Symbol
Score
Best Score
Best Reverse Score
Alignment
Complementation?
Transgene?
Homo sapiens (Human) (11)
12 of 14
Yes
Yes
4 of 14
No
No
4 of 14
No
No
1  
2 of 14
No
No
8  
2 of 14
No
No
2 of 14
No
No
3  
2 of 14
No
No
2 of 14
No
No
2 of 14
No
No
2 of 14
No
No
1  
2 of 14
No
No
Model Organism Orthologs (via DIOPT v9.1)
Species\Gene Symbol
Score
Best Score
Best Reverse Score
Alignment
Complementation?
Transgene?
Rattus norvegicus (Norway rat) (11)
12 of 14
Yes
Yes
4 of 14
No
No
4 of 14
No
No
4 of 14
No
No
2 of 14
No
No
2 of 14
No
No
2 of 14
No
No
2 of 14
No
No
2 of 14
No
No
2 of 14
No
No
1 of 14
No
No
Mus musculus (laboratory mouse) (11)
12 of 14
Yes
Yes
4 of 14
No
No
4 of 14
No
No
2 of 14
No
No
2 of 14
No
No
2 of 14
No
No
2 of 14
No
No
2 of 14
No
No
2 of 14
No
No
2 of 14
No
No
1 of 14
No
No
Xenopus tropicalis (Western clawed frog) (6)
10 of 13
Yes
Yes
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
Danio rerio (Zebrafish) (12)
13 of 14
Yes
Yes
4 of 14
No
No
2 of 14
No
No
2 of 14
No
No
2 of 14
No
No
2 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
Caenorhabditis elegans (Nematode, roundworm) (10)
5 of 14
Yes
No
4 of 14
No
No
4 of 14
No
No
2 of 14
No
No
2 of 14
No
No
2 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
Anopheles gambiae (African malaria mosquito) (5)
11 of 12
Yes
Yes
Arabidopsis thaliana (thale-cress) (14)
6 of 13
Yes
No
4 of 13
No
No
4 of 13
No
No
3 of 13
No
No
2 of 13
No
No
2 of 13
No
No
2 of 13
No
No
2 of 13
No
Yes
2 of 13
No
No
2 of 13
No
No
2 of 13
No
Yes
2 of 13
No
No
1 of 13
No
No
1 of 13
No
No
Saccharomyces cerevisiae (Brewer's yeast) (5)
6 of 13
Yes
Yes
6 of 13
Yes
No
2 of 13
No
No
2 of 13
No
No
2 of 13
No
No
Schizosaccharomyces pombe (Fission yeast) (3)
7 of 12
Yes
Yes
4 of 12
No
No
2 of 12
No
No
Escherichia coli (enterobacterium) (0)
Other Organism Orthologs (via OrthoDB)
Data provided directly from OrthoDB:HDAC3. Refer to their site for version information.
Paralogs
Paralogs (via DIOPT v9.1)
Drosophila melanogaster (Fruit fly) (9)
7 of 13
4 of 13
4 of 13
4 of 13
1 of 13
1 of 13
1 of 13
1 of 13
1 of 13
Human Disease Associations
FlyBase Human Disease Model Reports
Disease Ontology (DO) Annotations
Models Based on Experimental Evidence ( 2 )
Allele
Disease
Evidence
References
Potential Models Based on Orthology ( 0 )
Human Ortholog
Disease
Evidence
References
Modifiers Based on Experimental Evidence ( 4 )
Disease Associations of Human Orthologs (via DIOPT v9.1 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
Summary of Genetic Interactions
Interaction Browsers

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 (genetic) - An integrated Molecular Interaction Database
MIST (protein-protein) - An integrated Molecular Interaction Database
Pathways
Signaling Pathways (FlyBase)
Metabolic Pathways
FlyBase
External Links
Reactome Metabolic Pathways - An open-source, open access, manually curated and peer-reviewed metabolic pathway database.
External Data
Class of Gene
Genomic Location and Detailed Mapping Data
Chromosome (arm)
3R
Recombination map
3-47.5
Cytogenetic map
Sequence location
FlyBase Computed Cytological Location
Cytogenetic map
Evidence for location
83A4-83A4
Limits computationally determined from genome sequence between P{PZ}Snr101319&P{PZ}Itp-r83A05616 and P{lacW}Atus1938
Experimentally Determined Cytological Location
Cytogenetic map
Notes
References
83A3-83A4
(determined by in situ hybridisation)
Experimentally Determined Recombination Data
Location
Left of (cM)
Right of (cM)
Notes
Stocks and Reagents
Stocks (16)
Genomic Clones (21)
cDNA Clones (24)
 

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 JBrowse for alignment of the cDNAs and ESTs to the gene model.

cDNA clones, fully sequenced
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
Antibody Information
Laboratory Generated Antibodies
 
Commercially Available Antibodies
 
Cell Line Information
Publicly Available Cell Lines
 
    Other Stable Cell Lines
     
      Other Comments

      S2 cells which have been treated with dsRNA made from templates generated with primers directed against Hdac3 show inhibition of cell growth.

      Relationship to Other Genes
      Source for database merge of

      Source for merge of: HDAC3 CG2128

      Additional comments

      One or more of the processed

      transcripts for these genes contain two non-overlapping open reading frames (ORFs). The non-overlapping

      ORFs are represented by Hdac3 (FBgn0025825), CG45100 (FBgn0266539).

      Nomenclature History
      Source for database identify of

      Source for identity of: HDAC3 Hdac3

      Nomenclature comments

      Renamed from 'Hdac3' to 'HDAC3' to be consistent with the format of the other D. melanogaster HDAC genes.

      Etymology
      Synonyms and Secondary IDs (14)
      Reported As
      Symbol Synonym
      Dromel_CG2128_FBtr0078767_hdac3_mORF
      Name Synonyms
      Hdac3
      Histone Deacetylase-3
      Histone deacetylase 3
      histone deacetylase 3
      Secondary FlyBase IDs
      • FBgn0037331
      Datasets (1)
      Study focus (1)
      Experimental Role
      Project
      Project Type
      Title
      • bait_protein
      Genome-wide localization of chromatin factors by ChIP-chip and ChIP-Seq.
      Study result (0)
      Result
      Result Type
      Title
      External Crossreferences and Linkouts ( 47 )
      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/TrEMBL - Automatically annotated and unreviewed 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
      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
      FlyAtlas2 - A Drosophila melanogaster expression atlas with RNA-Seq, miRNA-Seq and sex-specific data
      FlyMine - An integrated database for Drosophila genomics
      KEGG Genes - Molecular building blocks of life in the genomic space.
      MARRVEL_MODEL - MARRVEL (model organism gene)
      Linkouts
      BioGRID - A database of protein and genetic interactions.
      Drosophila Genomics Resource Center - Drosophila Genomics Resource Center (DGRC) cDNA clones
      DroID - A comprehensive database of gene and protein interactions.
      DRSC - Results frm RNAi screens
      Eukaryotic Promoter Database - A collection of databases of experimentally validated promoters for selected model organisms.
      FlyAtlas - Adult expression by tissue, using Affymetrix Dros2 array
      FlyCyc Genes - Genes from a BioCyc PGDB for Dmel
      Fly-FISH - A database of Drosophila embryo and larvae mRNA localization patterns
      Flygut - An atlas of the Drosophila adult midgut
      iBeetle-Base - RNAi phenotypes in the red flour beetle (Tribolium castaneum)
      Interactive Fly - A cyberspace guide to Drosophila development and metazoan evolution
      MIST (genetic) - An integrated Molecular Interaction Database
      MIST (protein-protein) - An integrated Molecular Interaction Database
      Reactome Metabolic Pathways - An open-source, open access, manually curated and peer-reviewed metabolic pathway database.
      References (128)