FB2025_01 , released February 20, 2025
Gene: Dmel\HDAC6
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General Information
Symbol
Dmel\HDAC6
Species
D. melanogaster
Name
Histone deacetylase 6
Annotation Symbol
CG6170
Feature Type
FlyBase ID
FBgn0026428
Gene Model Status
Stock Availability
Gene Summary
Histone deacetylase 6 (HDAC6) encodes a cytosolic deacetylase that functions as a key modulator of proteostasis by mediating ubiquitin-proteasomal and lysosomal degradation of native and/or misfolded proteins. [Date last reviewed: 2018-09-27] (FlyBase Gene Snapshot)
Also Known As

dHDAC6, HDAC2, HDAC, dHDAC2

Key Links
Genomic Location
Cytogenetic map
Sequence location
Recombination map
1-50
RefSeq locus
NC_004354 REGION:15333310..15340360
Sequence
Genomic Maps
Other Genome Views
The following external sites may use different assemblies or annotations than FlyBase.
Function
Gene Ontology (GO) Annotations (14 terms)
Molecular Function (8 terms)
Terms Based on Experimental Evidence (7 terms)
CV Term
Evidence
References
Terms Based on Predictions or Assertions (2 terms)
CV Term
Evidence
References
inferred from biological aspect of ancestor with PANTHER:PTN008143312
non-traceable author statement
inferred from electronic annotation with InterPro:IPR001607
Biological Process (4 terms)
Terms Based on Experimental Evidence (3 terms)
CV Term
Evidence
References
inferred from mutant phenotype
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 (2 terms)
Terms Based on Experimental Evidence (1 term)
CV Term
Evidence
References
located_in cytoplasm
inferred from direct assay
Terms Based on Predictions or Assertions (1 term)
CV Term
Evidence
References
inferred from biological aspect of ancestor with PANTHER:PTN000065904
Gene Group (FlyBase)
Protein Family (UniProt)
-
Catalytic Activity (EC/Rhea)
protein lysine deacetylase activity
RHEA 58108:
Summaries
Gene Snapshot
Histone deacetylase 6 (HDAC6) encodes a cytosolic deacetylase that functions as a key modulator of proteostasis by mediating ubiquitin-proteasomal and lysosomal degradation of native and/or misfolded proteins. [Date last reviewed: 2018-09-27]
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)

a microtubule-associated deacetylase - interacts with polyubiquitinated proteins to stimulate autophagy as a compensatory degradation system when the ubiquitin-proteasome system is impaired

Gene Model and Products
Number of Transcripts
7
Number of Unique Polypeptides
7

Please see the JBrowse view of Dmel\HDAC6 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 M9PJN5)

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

Stop-codon suppression (UGA) postulated; FBrf0216884.

Gene model reviewed during 5.44

Low-frequency RNA-Seq exon junction(s) not annotated.

Gene model reviewed during 5.50

Transcript Data
Annotated Transcripts
Name
FlyBase ID
RefSeq ID
Length (nt)
Assoc. CDS (aa)
FBtr0074008
4483
1128
FBtr0074010
3848
1135
FBtr0074009
4241
1138
FBtr0301774
3451
883
FBtr0307383
3817
1108
FBtr0307384
3272
1022
FBtr0330405
4483
1179
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
UniProt
RefSeq ID
GenBank
FBpp0073825
124.9
1128
6.45
FBpp0073827
125.8
1135
6.45
FBpp0073826
126.0
1138
6.45
FBpp0298372
122.6
1108
6.32
FBpp0298373
113.3
1022
6.85
FBpp0303431
130.8
1179
6.50
Polypeptides with Identical Sequences

None of the polypeptides share 100% sequence identity.

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\HDAC6 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).

0.65

Transcript Expression
in situ
Stage
Tissue/Position (including subcellular localization)
Reference
organism

Comment: maternally deposited

Additional Descriptive Data
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 cytoplasm
inferred from direct assay
Expression Deduced from Reporters
High-Throughput Expression Data
Associated Tools

JBrowse - Visual display of RNA-Seq signals

View Dmel\HDAC6 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 ( 8 )
For All Classical and Insertion Alleles Show
 
Other relevant insertions
Transgenic Constructs ( 17 )
For All Alleles Carried on Transgenic Constructs Show
Transgenic constructs containing/affecting coding region of HDAC6
Transgenic constructs containing regulatory region of HDAC6
Aberrations (Deficiencies and Duplications) ( 0 )
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
Sterility
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) (20)
14 of 14
Yes
Yes
3  
6 of 14
No
Yes
1  
4 of 14
No
No
8  
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
1  
2 of 14
No
No
2 of 14
No
No
2 of 14
No
No
2 of 14
No
No
2 of 14
No
Yes
2 of 14
No
Yes
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
3  
1 of 14
No
No
1 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) (20)
6 of 14
Yes
Yes
4 of 14
No
No
4 of 14
No
No
4 of 14
No
No
3 of 14
No
Yes
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
2 of 14
No
No
2 of 14
No
Yes
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
1 of 14
No
Yes
1 of 14
No
No
Mus musculus (laboratory mouse) (20)
14 of 14
Yes
Yes
6 of 14
No
Yes
4 of 14
No
No
4 of 14
No
No
4 of 14
No
No
3 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
Yes
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
Yes
1 of 14
No
No
Xenopus tropicalis (Western clawed frog) (14)
6 of 13
Yes
Yes
5 of 13
No
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
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
Danio rerio (Zebrafish) (20)
14 of 14
Yes
Yes
6 of 14
No
Yes
4 of 14
No
No
3 of 14
No
No
3 of 14
No
No
3 of 14
No
No
2 of 14
No
No
2 of 14
No
No
2 of 14
No
No
2 of 14
No
Yes
2 of 14
No
Yes
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
1 of 14
No
No
1 of 14
No
No
1 of 14
No
No
Caenorhabditis elegans (Nematode, roundworm) (14)
13 of 14
Yes
Yes
5 of 14
No
Yes
4 of 14
No
Yes
3 of 14
No
No
2 of 14
No
Yes
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
1 of 14
No
Yes
1 of 14
No
No
1 of 14
No
No
Anopheles gambiae (African malaria mosquito) (10)
11 of 12
Yes
Yes
Arabidopsis thaliana (thale-cress) (18)
9 of 13
Yes
Yes
8 of 13
No
Yes
7 of 13
No
Yes
5 of 13
No
Yes
4 of 13
No
Yes
4 of 13
No
Yes
2 of 13
No
Yes
2 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
Yes
2 of 13
No
Yes
1 of 13
No
No
1 of 13
No
No
1 of 13
No
No
Saccharomyces cerevisiae (Brewer's yeast) (8)
9 of 13
Yes
Yes
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
Schizosaccharomyces pombe (Fission yeast) (6)
7 of 12
Yes
Yes
2 of 12
No
No
2 of 12
No
No
1 of 12
No
No
1 of 12
No
No
1 of 12
No
No
Escherichia coli (enterobacterium) (0)
Other Organism Orthologs (via OrthoDB)
Data provided directly from OrthoDB:HDAC6. Refer to their site for version information.
Paralogs
Paralogs (via DIOPT v9.1)
Drosophila melanogaster (Fruit fly) (12)
6 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
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 ( 1 )
Allele
Disease
Evidence
References
Potential Models Based on Orthology ( 1 )
Modifiers Based on Experimental Evidence ( 9 )
Allele
Disease
Interaction
References
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.
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:
Show/hide secondary interactors 
(data from AllianceMine provided by esyN)
Select Layout:
Legend:
Protein
RNA
Selected Interactor(s)
Other Interaction Browsers

Please see the Physical Interaction reports below for full details
RNA-protein
Physical Interaction
Assay
References
protein-protein
Physical Interaction
Assay
References
Summary of Genetic Interactions
esyN Network Diagram
Show/hide secondary interactors 
(data from AllianceMine provided by esyN)
esyN Network Key:
Suppression
Enhancement
Other 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 (protein-protein) - An integrated Molecular Interaction Database
Pathways
Signaling Pathways (FlyBase)
Metabolic Pathways
FlyBase
External Links
External Data
Linkouts
Reactome - An open-source, open access, manually curated and peer-reviewed pathway database.
Class of Gene
Genomic Location and Detailed Mapping Data
Chromosome (arm)
X
Recombination map
1-50
Cytogenetic map
Sequence location
FlyBase Computed Cytological Location
Cytogenetic map
Evidence for location
13B6-13B6
Limits computationally determined from genome sequence between P{EP}hiwEP1308 and P{EP}Ahcy13EP1007
Experimentally Determined Cytological Location
Cytogenetic map
Notes
References
Experimentally Determined Recombination Data
Location
Left of (cM)
Right of (cM)
Notes
Stocks and Reagents
Stocks (16)
Genomic Clones (11)
 

Please Note FlyBase no longer curates genomic clone accessions so this list may not be complete

cDNA Clones (72)
 

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
 

polyclonal

Commercially Available Antibodies
 
Cell Line Information
Publicly Available Cell Lines
 
    Other Stable Cell Lines
     
      Other Comments

      HDAC6 regulates T-bar morphology.

      Gene expression is increased in response to the presence of two copies of Scer\GAL4hs.PB.

      S2 cells which have been treated with dsRNA made from templates generated with primers directed against HDAC6 show no significant inhibition of cell growth.

      The HDAC6 gene can be spliced into two isoforms, HDAC6-S, and HDAC6-L, containing 883 and 1128 amino acids, respectively. These isoforms are identical except that HDAC6-L has an additional 75 amino acids at the N terminus and 170 amino acids at the C terminus containing a ubiquitin binding protein domain.

      Relationship to Other Genes
      Source for database merge of
      Additional comments
      Nomenclature History
      Source for database identify of

      Source for identity of: HDAC2 CG6170

      Nomenclature comments
      Etymology
      Synonyms and Secondary IDs (17)
      Reported As
      Symbol Synonym
      Name Synonyms
      HDAC6
      Histone Deacetylase 6
      Histone deacetylase 6
      histone deacetylase HDA2
      Secondary FlyBase IDs
        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 ( 103 )
        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 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
        FlyMet - A comprehensive tissue-specific metabolomics resource for Drosophila.
        iBeetle-Base - RNAi phenotypes in the red flour beetle (Tribolium castaneum)
        Interactive Fly - A cyberspace guide to Drosophila development and metazoan evolution
        MIST (protein-protein) - An integrated Molecular Interaction Database
        Reactome - An open-source, open access, manually curated and peer-reviewed pathway database.
        References (142)