HDDC3

protein-coding

HD domain containing 3

Gene summary

Predicted to enable guanosine-3',5'-bis(diphosphate) 3'-diphosphatase activity. [provided by Alliance of Genome Resources, Jul 2025]

MANE transcript

NM_001286451.2

Inheritance

—

ClinVar variants

U:18B:1

Top phenotype

—

gnomAD constraint

pLI —, LoF o/e 0.6

Max pathogenic AF

—

Genomic locus

chr15:90,929,968-90,935,196

External References & Databases

Transcript & Mutation Effects

hg38 • Region Span ~5.2 kb
Loading mutation effect viewer...

GenCC Phenotypes & Disease Associations

Curated gene-disease validity assertions and inheritance patterns

No GenCC data available for this gene.

ClinVar Associated Diseases & Phenotypes

Reported disease conditions connected to HDDC3 variants in ClinVar

2 Conditions Cataloged
not specifiedTotal: 17
not providedTotal: 1

ClinVar Variants & Pathogenicity by Type

Statistics based on transcript NM_001286451.2. Only rare variants are included.

We include only reliable ClinVar variants with their consequences to MANE Select, MANE Plus Clinical transcripts, or transcripts with TSL equal to 1. Click a count to filter the variants table below.

Slight differences between displayed counts and ClinVar may occur due to a different transcript/consequence chosen by our variant effect predictor, or because we classify Benign/Likely benign as Likely benign and Pathogenic/Likely pathogenic as Likely pathogenic.

EffectPLPVUSLBBSum
synonymous
0
missense
17
clinvar
17
nonsense
1
clinvar
1
clinvar
2
start loss
0
frameshift
0
splice donor/acceptor (+/-2bp)
0
Total00181019
Loading ClinVar variants...

Transcript Catalog

Annotated transcript isoforms across RefSeq and Ensembl databases

Showing 4 of 16 transcripts
Transcript IDSourceProtein IDCoding ExonsMANE Status
NM_001286451.2RefSeqNP_001273380.14MANE Select
ENST00000394272.8EnsemblENSP00000377814.44MANE Select
NM_198527.4RefSeqNP_940929.14Standard
ENST00000330334.7EnsemblENSP00000330721.34Standard

Gene Ontology (GO) Annotations & Pathways

Biological processes, molecular functions, cellular components and pathways

Pathways ConsensusPathDB

  • Purine metabolism - Homo sapiens (human)

Molecular Function

  • protein binding
  • guanosine-3',5'-bis(diphosphate) 3'-diphosphatase activity
  • metal ion binding

gnomAD Constraint

Source: gnomAD

Gene type
protein_coding
Transcript type
protein_coding
Transcript
ENST00000330334
Coding exons
4
Length
1652
Individuals with no LoFs
125679
Homozygous LoFs
0
Heterozygous LoFs
69
Defined
125748
p
0.000274
Z-ScoreObservedExpectedObserved/ExpectedMutation RateTotal Possible
Missense0.3875866.90.8670.00000303887
Missense (PolyPhen)1722.3090.76204322
Synonymous0.9472430.70.7820.00000148300
Loss of Function0.82334.980.6022.13e-767

Population LoF Frequency

PopulationCAFp-valueStatus
African0.00220.0022notable
Latino/Admixed American0.000120.00012rare
Ashkenazi Jewish00.0absent
East Asian0.0000540.000054rare
Finnish00.0absent
European (Non-Finnish)0.000220.00022rare
South Asian0.0000980.000098rare
Other0.000160.00016rare

dbNSFP Gene Annotations

Source: dbNSFP

Function
FUNCTION: ppGpp hydrolyzing enzyme involved in starvation response. {ECO:0000269|PubMed:20818390}.;

Recessive Scores

pRec
0.111

Intolerance Scores

LoFtool
0.575
RVIS EVS
-0.03
RVIS percentile EVS
51.04

Essentials

Essential (CRISPR)
N
Essential (CRISPR2)
S
Essential (gene trap)
N
Indispensability pred.
E
Indispensability score
0.521

Gene Damage Prediction

AllRecessiveDominant
MendelianMediumMediumMedium
Primary ImmunodeficiencyMediumMediumMedium
CancerMediumMediumMedium
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