TBC1D9

protein-coding

TBC1 domain family member 9, the group of GRAM domain containing|EF-hand domain containing

Gene summary

Predicted to enable GTPase activator activity. Predicted to be involved in system process. [provided by Alliance of Genome Resources, Jun 2026]

MANE transcript

NM_015130.3

Inheritance

—

ClinVar variants

U:137B:4

Top phenotype

Attention deficit hyperactivity disorder

gnomAD constraint

pLI —, LoF o/e 0.33

Max pathogenic AF

—

Genomic locus

chr4:140,620,782-140,756,385

External References & Databases

Transcript & Mutation Effects

hg38 • Region Span ~135.6 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 TBC1D9 variants in ClinVar

3 Conditions Cataloged
not specifiedTotal: 124
not providedTotal: 4
Attention deficit hyperactivity disorderTotal: 1

ClinVar Variants & Pathogenicity by Type

Statistics based on transcript NM_015130.3. 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
1
clinvar
2
clinvar
1
clinvar
4
missense
128
clinvar
1
clinvar
129
nonsense
1
clinvar
1
start loss
0
frameshift
0
splice donor/acceptor (+/-2bp)
7
clinvar
7
Total0013731141
Loading ClinVar variants...

Transcript Catalog

Annotated transcript isoforms across RefSeq and Ensembl databases

Showing 4 of 11 transcripts
Transcript IDSourceProtein IDCoding ExonsMANE Status
NM_015130.3RefSeqNP_055945.221MANE Select
ENST00000442267.3EnsemblENSP00000411197.221MANE Select
ENST00000855917.1EnsemblENSP00000525976.121Standard
ENST00000855917.2EnsemblENSP00000525976.121Standard

Gene Ontology (GO) Annotations & Pathways

Biological processes, molecular functions, cellular components and pathways

Biological Process

  • intracellular protein transport
  • activation of GTPase activity

Molecular Function

  • GTPase activator activity
  • calcium ion binding
  • protein binding
  • Rab GTPase binding

Cellular Component

  • cell

gnomAD Constraint

Source: gnomAD

Gene type
protein_coding
Transcript type
protein_coding
Transcript
ENST00000442267
Coding exons
21
Length
135356
Individuals with no LoFs
124662
Homozygous LoFs
0
Heterozygous LoFs
29
Defined
124691
p
0.000116
Z-ScoreObservedExpectedObserved/ExpectedMutation RateTotal Possible
Missense3.164837220.6690.00004168332
Missense (PolyPhen)217374.130.580014411
Synonymous0.9782682890.9270.00001752404
Loss of Function4.691957.30.3320.00000291687

Population LoF Frequency

PopulationCAFp-valueStatus
African00.0absent
Latino/Admixed American0.0000290.000029rare
Ashkenazi Jewish0.0000990.000099rare
East Asian0.0000560.000056rare
Finnish0.0000930.000093rare
European (Non-Finnish)0.000200.00019rare
South Asian0.0000660.000065rare
Other00.0absent

dbNSFP Gene Annotations

Source: dbNSFP

Function
FUNCTION: May act as a GTPase-activating protein for Rab family protein(s).;

Recessive Scores

pRec
0.156

Intolerance Scores

LoFtool
0.266
RVIS EVS
-0.93
RVIS percentile EVS
9.68

Essentials

Essential (CRISPR)
N
Essential (CRISPR2)
N
Essential (gene trap)
N
Indispensability pred.
E
Indispensability score
0.544

Gene Damage Prediction

AllRecessiveDominant
MendelianMediumMediumMedium
Primary ImmunodeficiencyMediumMediumMedium
CancerMediumMediumMedium
For research and educational, non-commercial use only. Not for clinical or diagnostic use. GeneBe does not provide medical advice. Data use for AI modeling is prohibited: if used, the cost is $0.001 per byte of downloaded uncompressed data.