TMEM200B
protein-codingtransmembrane protein 200B
Gene summary
Predicted to be located in membrane. [provided by Alliance of Genome Resources, Jul 2025]
MANE transcript
Inheritance
ClinVar variants
Top phenotype
gnomAD constraint
Max pathogenic AF
Genomic locus
External References & Databases
Transcript & Mutation Effects
hg38 • Region Span ~4.5 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 TMEM200B variants in ClinVar
ClinVar Variants & Pathogenicity by Type
Statistics based on transcript NM_001003682.4. 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.
| Effect | PathogenicP | Likely pathogenicLP | VUS | Likely benignLB | BenignB | Sum |
|---|---|---|---|---|---|---|
| synonymous | 1 | 1 | ||||
| missense | 66 | 66 | ||||
| nonsense | 0 | |||||
| start loss | 0 | |||||
| frameshift | 0 | |||||
| splice donor/acceptor (+/-2bp) | 0 | |||||
| Total | 0 | 0 | 66 | 1 | 0 | 67 |
Transcript Catalog
Annotated transcript isoforms across RefSeq and Ensembl databases
| Transcript ID | Source | Protein ID | Coding Exons | MANE Status |
|---|---|---|---|---|
| RefSeq | NP_001003682.1 | 1 | MANE Select | |
| Ensembl | ENSP00000428459.1 | 1 | MANE Select | |
| RefSeq | NP_001165339.1 | 1 | Standard | |
| Ensembl | ENSP00000428544.1 | 1 | Standard |
Gene Ontology (GO) Annotations & Pathways
Biological processes, molecular functions, cellular components and pathways
Cellular Component
- integral component of membrane
gnomAD Constraint
Source:
- Gene type
- protein_coding
- Transcript type
- protein_coding
- Transcript
- ENST00000420504
- Coding exons
- 1
- Length
- 4508
- Individuals with no LoFs
- 125628
- Homozygous LoFs
- 0
- Heterozygous LoFs
- 8
- Defined
- 125636
- p
- 0.0000318
| Z-Score | Observed | Expected | Observed/Expected | Mutation Rate | Total Possible | |
|---|---|---|---|---|---|---|
| Missense | 0.235 | 157 | 166 | 0.949 | 0.00000977 | 1841 |
| Missense (PolyPhen) | 60 | 72.754 | 0.82469 | 905 | ||
| Synonymous | -0.220 | 78 | 75.6 | 1.03 | 0.00000428 | 759 |
| Loss of Function | 0.864 | 5 | 7.57 | 0.661 | 4.67e-7 | 63 |
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 | 0.00011 | 0.00011 | rare |
| Finnish | 0.00014 | 0.00014 | rare |
| European (Non-Finnish) | 0.0000089 | 0.0000088 | rare |
| South Asian | 0.000098 | 0.000033 | rare |
| Other | 0 | 0.0 | absent |
dbNSFP Gene Annotations
Source:
Recessive Scores
- pRec
- 0.0836
Essentials
- Essential (CRISPR)
- N
- Essential (CRISPR2)
- N
- Essential (gene trap)
- N
- Indispensability pred.
- N
- Indispensability score
- 0.114
Gene Damage Prediction
| All | Recessive | Dominant | |
|---|---|---|---|
| Mendelian | Medium | Medium | Medium |
| Primary Immunodeficiency | Medium | Medium | Medium |
| Cancer | Medium | Medium | Medium |