TBC1D19

protein-coding

TBC1 domain family member 19

Gene summary

Predicted to enable GTPase activator activity. [provided by Alliance of Genome Resources, Jul 2025]

MANE transcript

NM_018317.4

Inheritance

—

ClinVar variants

U:57

Top phenotype

—

gnomAD constraint

pLI —, LoF o/e 0.33

Max pathogenic AF

—

Genomic locus

chr4:26,576,437-26,756,223

External References & Databases

Transcript & Mutation Effects

hg38 • Region Span ~179.8 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 TBC1D19 variants in ClinVar

1 Conditions Cataloged
not specifiedTotal: 46

ClinVar Variants & Pathogenicity by Type

Statistics based on transcript NM_018317.4. 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
2
clinvar
2
missense
47
clinvar
47
nonsense
1
clinvar
1
start loss
0
frameshift
0
splice donor/acceptor (+/-2bp)
7
clinvar
7
Total00570057
Loading ClinVar variants...

Transcript Catalog

Annotated transcript isoforms across RefSeq and Ensembl databases

Showing 4 of 36 transcripts
Transcript IDSourceProtein IDCoding ExonsMANE Status
NM_018317.4RefSeqNP_060787.221MANE Select
ENST00000264866.9EnsemblENSP00000264866.421MANE Select
NM_001292054.2RefSeqNP_001278983.118Standard
ENST00000505206.5EnsemblENSP00000423097.19Standard

Gene Ontology (GO) Annotations & Pathways

Biological processes, molecular functions, cellular components and pathways

Biological Process

  • positive regulation of GTPase activity
  • regulation of cilium assembly

Molecular Function

  • GTPase activator activity
  • protein binding

gnomAD Constraint

Source: gnomAD

Gene type
protein_coding
Transcript type
protein_coding
Transcript
ENST00000264866
Coding exons
21
Length
178915
Individuals with no LoFs
125713
Homozygous LoFs
0
Heterozygous LoFs
28
Defined
125741
p
0.000111
Z-ScoreObservedExpectedObserved/ExpectedMutation RateTotal Possible
Missense1.851782620.6790.00001293400
Missense (PolyPhen)4482.880.530891070
Synonymous1.966487.30.7330.00000410956
Loss of Function3.881339.20.3320.00000211466

Population LoF Frequency

PopulationCAFp-valueStatus
African00.0absent
Latino/Admixed American0.0000310.000029rare
Ashkenazi Jewish00.0absent
East Asian0.0000560.000054rare
Finnish0.000190.00018rare
European (Non-Finnish)0.000120.00011rare
South Asian0.000310.00029rare
Other00.0absent

dbNSFP Gene Annotations

Source: dbNSFP

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

Recessive Scores

pRec
0.121

Intolerance Scores

RVIS EVS
-0.25
RVIS percentile EVS
35.99

Essentials

Essential (CRISPR)
N
Essential (CRISPR2)
N
Essential (gene trap)
N
Indispensability pred.
N
Indispensability score
0.275

Gene Damage Prediction

AllRecessiveDominant
MendelianMediumMediumMedium
Primary ImmunodeficiencyMediumMediumMedium
CancerMediumMediumMedium
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