TRAPPC8
protein-codingtrafficking 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]
- KIAA1012
MANE transcript
Inheritance
ClinVar variants
Top phenotype
gnomAD constraint
Max pathogenic AF
Genomic locus
External References & Databases
Transcript & Mutation Effects
hg38 • Region Span ~123.9 kbGenCC 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
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.
| Effect | PathogenicP | Likely pathogenicLP | VUS | Likely benignLB | BenignB | Sum |
|---|---|---|---|---|---|---|
| synonymous | 3 | 2 | 5 | |||
| missense | 191 | 4 | 1 | 196 | ||
| nonsense | 5 | 5 | ||||
| start loss | 0 | |||||
| frameshift | 2 | 2 | ||||
| splice donor/acceptor (+/-2bp) | 8 | 8 | ||||
| Total | 0 | 0 | 209 | 6 | 1 | 216 |
Transcript Catalog
Annotated transcript isoforms across RefSeq and Ensembl databases
| Transcript ID | Source | Protein ID | Coding Exons | MANE Status |
|---|---|---|---|---|
| RefSeq | NP_055754.3 | 29 | MANE Select | |
| Ensembl | ENSP00000283351.4 | 29 | MANE Select | |
| Ensembl | ENSP00000463973.1 | 5 | Standard | |
| Ensembl | ENSP00000462550.1 | 20 | Standard |
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:
- 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-Score | Observed | Expected | Observed/Expected | Mutation Rate | Total Possible | |
|---|---|---|---|---|---|---|
| Missense | 1.21 | 634 | 726 | 0.874 | 0.0000360 | 9388 |
| Missense (PolyPhen) | 138 | 232.51 | 0.59351 | 3045 | ||
| Synonymous | -1.59 | 283 | 251 | 1.13 | 0.0000123 | 2695 |
| Loss of Function | 7.55 | 5 | 76.0 | 0.0658 | 0.00000409 | 954 |
Population LoF Frequency
| Population | CAF | p-value | Status |
|---|---|---|---|
| African | 0 | 0.0 | absent |
| Latino/Admixed American | 0.000029 | 0.000029 | rare |
| Ashkenazi Jewish | 0 | 0.0 | absent |
| East Asian | 0.000054 | 0.000054 | rare |
| Finnish | 0 | 0.0 | absent |
| European (Non-Finnish) | 0.000027 | 0.000026 | rare |
| South Asian | 0.000069 | 0.000033 | rare |
| Other | 0 | 0.0 | absent |
dbNSFP Gene Annotations
Source:
- 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
| All | Recessive | Dominant | |
|---|---|---|---|
| Mendelian | Medium | Medium | Medium |
| Primary Immunodeficiency | Medium | Medium | High |
| Cancer | High | Medium | High |