TRAPPC8

protein-coding

trafficking protein particle complex subunit 8, the group of Trafficking protein particle complex subunits

Gene summary

Involved in Golgi organization and collagen biosynthetic process. Part of TRAPP complex. [provided by Alliance of Genome Resources, Jul 2025]

Previous symbols:
  • KIAA1012

MANE transcript

NM_014939.5

Inheritance

—

ClinVar variants

U:209B:7

Top phenotype

—

gnomAD constraint

pLI —, LoF o/e 0.07

Max pathogenic AF

—

Genomic locus

chr18:31,829,197-31,953,136

External References & Databases

Transcript & Mutation Effects

hg38 • Region Span ~123.9 kb
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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 TRAPPC8 variants in ClinVar

2 Conditions Cataloged
not specifiedTotal: 185
not providedTotal: 11

ClinVar Variants & Pathogenicity by Type

Statistics based on transcript NM_014939.5. 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
3
clinvar
2
clinvar
5
missense
191
clinvar
4
clinvar
1
clinvar
196
nonsense
5
clinvar
5
start loss
0
frameshift
2
clinvar
2
splice donor/acceptor (+/-2bp)
8
clinvar
8
Total0020961216
Loading ClinVar variants...

Transcript Catalog

Annotated transcript isoforms across RefSeq and Ensembl databases

Showing 4 of 50 transcripts
Transcript IDSourceProtein IDCoding ExonsMANE Status
NM_014939.5RefSeqNP_055754.329MANE Select
ENST00000283351.10EnsemblENSP00000283351.429MANE Select
ENST00000578658.1EnsemblENSP00000463973.15Standard
ENST00000580104.5EnsemblENSP00000462550.120Standard

Gene Ontology (GO) Annotations & Pathways

Biological processes, molecular functions, cellular components and pathways

Pathways ConsensusPathDB

  • Vesicle-mediated transport
  • Membrane Trafficking
  • Rab regulation of trafficking
  • RAB GEFs exchange GTP for GDP on RABs

Biological Process

  • autophagosome assembly
  • endoplasmic reticulum to Golgi vesicle-mediated transport
  • Golgi organization
  • autophagy of peroxisome
  • protein localization by the Cvt pathway

Molecular Function

  • protein binding
  • Rab guanyl-nucleotide exchange factor activity

Cellular Component

  • phagophore assembly site
  • cytosol
  • TRAPP complex
  • cytoplasmic vesicle
  • TRAPPIII protein complex

gnomAD Constraint

Source: gnomAD

Gene type
protein_coding
Transcript type
protein_coding
Transcript
ENST00000283351
Coding exons
29
Length
123964
Individuals with no LoFs
125731
Homozygous LoFs
0
Heterozygous LoFs
6
Defined
125737
p
0.0000239
Z-ScoreObservedExpectedObserved/ExpectedMutation RateTotal Possible
Missense1.216347260.8740.00003609388
Missense (PolyPhen)138232.510.593513045
Synonymous-1.592832511.130.00001232695
Loss of Function7.55576.00.06580.00000409954

Population LoF Frequency

PopulationCAFp-valueStatus
African00.0absent
Latino/Admixed American0.0000290.000029rare
Ashkenazi Jewish00.0absent
East Asian0.0000540.000054rare
Finnish00.0absent
European (Non-Finnish)0.0000270.000026rare
South Asian0.0000690.000033rare
Other00.0absent

dbNSFP Gene Annotations

Source: dbNSFP

Function
FUNCTION: May be involved in endoplasmic reticulum to Golgi apparatus trafficking at a very early stage. {ECO:0000269|PubMed:21525244}.;

Recessive Scores

pRec
0.0963

Intolerance Scores

RVIS EVS
0.72
RVIS percentile EVS
85.86

Essentials

Essential (CRISPR)
E
Essential (CRISPR2)
E
Essential (gene trap)
E
Indispensability pred.
N
Indispensability score
0.114

Gene Damage Prediction

AllRecessiveDominant
MendelianMediumMediumMedium
Primary ImmunodeficiencyMediumMediumHigh
CancerHighMediumHigh
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