TMSB15B
protein-codingthymosin beta 15B
Gene summary
Predicted to enable actin monomer binding activity and protein sequestering activity. Involved in positive regulation of cell migration. Predicted to be located in cytoskeleton. Predicted to be part of filamentous actin. [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 ~47.8 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 TMSB15B variants in ClinVar
ClinVar Variants & Pathogenicity by Type
Statistics based on transcript NM_194324.4. 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 | 0 | |||||
| missense | 5 | 5 | ||||
| nonsense | 0 | |||||
| start loss | 0 | |||||
| frameshift | 0 | |||||
| splice donor/acceptor (+/-2bp) | 1 | 1 | ||||
| Total | 0 | 0 | 6 | 0 | 0 | 6 |
Transcript Catalog
Annotated transcript isoforms across RefSeq and Ensembl databases
| Transcript ID | Source | Protein ID | Coding Exons | MANE Status |
|---|---|---|---|---|
| RefSeq | NP_919305.2 | 2 | MANE Select | |
| Ensembl | ENSP00000455371.1 | 2 | MANE Select | |
| RefSeq | NP_001337140.1 | 2 | Standard | |
| RefSeq | NP_001337141.1 | 2 | Standard |
Gene Ontology (GO) Annotations & Pathways
Biological processes, molecular functions, cellular components and pathways
Biological Process
- regulation of transcription by RNA polymerase II
- actin filament organization
- regulation of cell migration
- positive regulation of cell migration
- sequestering of actin monomers
Molecular Function
- DNA-binding transcription factor activity, RNA polymerase II-specific
- molecular_function
- actin monomer binding
Cellular Component
- cellular_component
- cytoplasm
- cytoskeleton
gnomAD Constraint
Source:
- Gene type
- protein_coding
- Transcript type
- protein_coding
- Transcript
- ENST00000436583
- Coding exons
- 2
- Length
- 56092
- Individuals with no LoFs
- 0
- Homozygous LoFs
- 0
- Heterozygous LoFs
- 0
- Defined
- 0
- p
- 0.00
| Z-Score | Observed | Expected | Observed/Expected | Mutation Rate | Total Possible | |
|---|---|---|---|---|---|---|
| Missense | -0.725 | 21 | 13.5 | 1.56 | 9.05e-7 | 290 |
| Missense (PolyPhen) | 6 | 4.1279 | 1.4535 | 102 | ||
| Synonymous | 1.25 | 2 | 5.85 | 0.342 | 4.47e-7 | 74 |
| Loss of Function | 0.909 | 0 | 0.963 | 0.00 | 6.04e-8 | 22 |
Population LoF Frequency
| Population | CAF | p-value | Status |
|---|---|---|---|
| African | 0 | 0.0 | absent |
| Latino/Admixed American | 0 | 0.0 | absent |
| Ashkenazi Jewish | 0 | 0.0 | absent |
| East Asian | 0 | 0.0 | absent |
| Finnish | 0 | 0.0 | absent |
| European (Non-Finnish) | 0 | 0.0 | absent |
| South Asian | 0 | 0.0 | absent |
| Other | 0 | 0.0 | absent |
dbNSFP Gene Annotations
Source:
- Function
- FUNCTION: Plays an important role in the organization of the cytoskeleton. Binds to and sequesters actin monomers (G actin) and therefore inhibits actin polymerization (By similarity). May be involved in cell migration. {ECO:0000250, ECO:0000269|PubMed:19296525}.;
Essentials
- Essential (CRISPR)
- N
- Indispensability pred.
- N
- Indispensability score
- 0.114