C18orf54
protein-codingchromosome 18 open reading frame 54
Gene summary
Predicted to be located in extracellular region. [provided by Alliance of Genome Resources, Jun 2026]
MANE transcript
Inheritance
ClinVar variants
Top phenotype
gnomAD constraint
Max pathogenic AF
Genomic locus
External References & Databases
Transcript & Mutation Effects
hg38 • Region Span ~27.3 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 C18orf54 variants in ClinVar
ClinVar Variants & Pathogenicity by Type
Statistics based on transcript NM_001288980.2. 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.
| Effect | PathogenicP | Likely pathogenicLP | VUS | Likely benignLB | BenignB | Sum |
|---|---|---|---|---|---|---|
| synonymous | 1 | 1 | ||||
| missense | 3 | 3 | ||||
| nonsense | 0 | |||||
| start loss | 0 | |||||
| frameshift | 0 | |||||
| splice donor/acceptor (+/-2bp) | 1 | 1 | ||||
| Total | 0 | 0 | 4 | 1 | 0 | 5 |
Transcript Catalog
Annotated transcript isoforms across RefSeq and Ensembl databases
| Transcript ID | Source | Protein ID | Coding Exons | MANE Status |
|---|---|---|---|---|
| RefSeq | NP_001275909.1 | 7 | MANE Select | |
| Ensembl | ENSP00000477654.1 | 7 | MANE Select | |
| RefSeq | NP_001275910.1 | 7 | Standard | |
| RefSeq | NP_001275911.1 | 7 | Standard |
gnomAD Constraint
Source:
- Gene type
- protein_coding
- Transcript type
- protein_coding
- Transcript
- ENST00000300091
- Coding exons
- 7
- Length
- 27302
- Individuals with no LoFs
- 125712
- Homozygous LoFs
- 0
- Heterozygous LoFs
- 22
- Defined
- 125734
- p
- 0.0000875
| Z-Score | Observed | Expected | Observed/Expected | Mutation Rate | Total Possible | |
|---|---|---|---|---|---|---|
| Missense | -0.568 | 218 | 196 | 1.11 | 0.00000992 | 2461 |
| Missense (PolyPhen) | 62 | 53.729 | 1.1539 | 758 | ||
| Synonymous | 0.352 | 67 | 70.8 | 0.947 | 0.00000359 | 679 |
| Loss of Function | 1.11 | 11 | 15.8 | 0.698 | 7.44e-7 | 227 |
Population LoF Frequency
| Population | CAF | p-value | Status |
|---|---|---|---|
| African | 0.00025 | 0.00025 | rare |
| Latino/Admixed American | 0.000095 | 0.000087 | rare |
| Ashkenazi Jewish | 0 | 0.0 | absent |
| East Asian | 0.000059 | 0.000054 | rare |
| Finnish | 0.000047 | 0.000046 | rare |
| European (Non-Finnish) | 0.00011 | 0.00011 | rare |
| South Asian | 0.000036 | 0.000033 | rare |
| Other | 0 | 0.0 | absent |
dbNSFP Gene Annotations
Source:
- Function
- FUNCTION: Might play a role in cell proliferation. {ECO:0000250}.;
Recessive Scores
- pRec
- 0.0786
Intolerance Scores
- LoFtool
- 0.470
- RVIS EVS
- -0.07
- RVIS percentile EVS
- 48.69
Essentials
- Essential (CRISPR)
- N
- Essential (CRISPR2)
- N
- Essential (gene trap)
- N
Gene Damage Prediction
| All | Recessive | Dominant | |
|---|---|---|---|
| Mendelian | Medium | Medium | Medium |
| Primary Immunodeficiency | Medium | Medium | Medium |
| Cancer | Medium | Medium | Medium |