RAD51B
protein-codingRAD51 paralog B
Gene summary
The protein encoded by this gene is a member of the RAD51 protein family. RAD51 family members are evolutionarily conserved proteins essential for DNA repair by homologous recombination. This protein has been shown to form a stable heterodimer with the family member RAD51C, which further interacts with the other family members, such as RAD51, XRCC2, and XRCC3. Overexpression of this gene was found to cause cell cycle G1 delay and cell apoptosis, which suggested a role of this protein in sensing DNA damage. Rearrangements between this locus and high mobility group AT-hook 2 (HMGA2, GeneID 8091) have been observed in uterine leiomyomata. [provided by RefSeq, Mar 2016]
- RAD51L1
MANE transcript
Inheritance
ClinVar variants
Top phenotype
gnomAD constraint
Max pathogenic AF
Genomic locus
External References & Databases
Transcript & Mutation Effects
hg38 • Region Span ~910.4 kbGenCC Phenotypes & Disease Associations
Curated gene-disease validity assertions and inheritance patterns
Inheritance Pattern: AR
Disease ID:MONDO:0005387
Submitter: Ambry Genetics
ClinVar Associated Diseases & Phenotypes
Reported disease conditions connected to RAD51B variants in ClinVar
ClinVar Variants & Pathogenicity by Type
Statistics based on transcript NM_133510.4. 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 | 5 | 157 | 2 | 165 | |
| missense | 340 | 35 | 3 | 378 | ||
| nonsense | 1 | 8 | 9 | |||
| start loss | 2 | 2 | ||||
| frameshift | 11 | 11 | ||||
| splice donor/acceptor (+/-2bp) | 19 | 19 | ||||
| Total | 0 | 2 | 385 | 192 | 5 | 584 |
Highest pathogenic variant AF is 0.000008709154
Transcript Catalog
Annotated transcript isoforms across RefSeq and Ensembl databases
| Transcript ID | Source | Protein ID | Coding Exons | MANE Status |
|---|---|---|---|---|
| RefSeq | NP_598194.1 | 10 | MANE Select | |
| Ensembl | ENSP00000418859.1 | 10 | MANE Select | |
| RefSeq | NP_001308738.1 | 10 | Standard | |
| RefSeq | NP_001308739.1 | 10 | Standard |
Gene Ontology (GO) Annotations & Pathways
Biological processes, molecular functions, cellular components and pathways
Pathways ConsensusPathDB
- Homologous recombination - Homo sapiens (human)
- HDR through Homologous Recombination (HR) or Single Strand Annealing (SSA)
- DNA Repair
- DNA Double-Strand Break Repair
- Homology Directed Repair
Biological Process
- double-strand break repair via homologous recombination
- DNA repair
- DNA recombination
- reciprocal meiotic recombination
- blood coagulation
Molecular Function
- four-way junction DNA binding
- DNA binding
- double-stranded DNA binding
- single-stranded DNA binding
- protein binding
Cellular Component
- nucleus
- nucleoplasm
- replication fork
- Rad51B-Rad51C-Rad51D-XRCC2 complex
gnomAD Constraint
Source:
- Gene type
- protein_coding
- Transcript type
- protein_coding
- Transcript
- ENST00000487270
- Coding exons
- 10
- Length
- 910440
- Individuals with no LoFs
- 125646
- Homozygous LoFs
- 0
- Heterozygous LoFs
- 102
- Defined
- 125748
- p
- 0.000406
| Z-Score | Observed | Expected | Observed/Expected | Mutation Rate | Total Possible | |
|---|---|---|---|---|---|---|
| Missense | 0.672 | 169 | 195 | 0.865 | 0.00000944 | 2459 |
| Missense (PolyPhen) | 29 | 46.752 | 0.62029 | 582 | ||
| Synonymous | 0.339 | 68 | 71.6 | 0.949 | 0.00000333 | 778 |
| Loss of Function | -0.563 | 21 | 18.4 | 1.14 | 9.39e-7 | 233 |
Population LoF Frequency
| Population | CAF | p-value | Status |
|---|---|---|---|
| African | 0.00025 | 0.00025 | rare |
| Latino/Admixed American | 0.00052 | 0.00049 | rare |
| Ashkenazi Jewish | 0 | 0.0 | absent |
| East Asian | 0.00094 | 0.00092 | rare |
| Finnish | 0 | 0.0 | absent |
| European (Non-Finnish) | 0.00029 | 0.00029 | rare |
| South Asian | 0.00092 | 0.00091 | rare |
| Other | 0.00050 | 0.00049 | rare |
dbNSFP Gene Annotations
Source:
- Function
- FUNCTION: Involved in the homologous recombination repair (HRR) pathway of double-stranded DNA breaks arising during DNA replication or induced by DNA-damaging agents. May promote the assembly of presynaptic RAD51 nucleoprotein filaments. Binds single-stranded DNA and double-stranded DNA and has DNA-dependent ATPase activity. Part of the RAD21 paralog protein complex BCDX2 which acts in the BRCA1-BRCA2-dependent HR pathway. Upon DNA damage, BCDX2 acts downstream of BRCA2 recruitment and upstream of RAD51 recruitment. BCDX2 binds predominantly to the intersection of the four duplex arms of the Holliday junction and to junction of replication forks. The BCDX2 complex was originally reported to bind single-stranded DNA, single-stranded gaps in duplex DNA and specifically to nicks in duplex DNA. The BCDX2 subcomplex RAD51B:RAD51C exhibits single-stranded DNA-dependent ATPase activity suggesting an involvement in early stages of the HR pathway. {ECO:0000269|PubMed:11751635, ECO:0000269|PubMed:11751636, ECO:0000269|PubMed:11842113, ECO:0000269|PubMed:12441335, ECO:0000269|PubMed:23108668, ECO:0000269|PubMed:23149936}.;
- Disease
- DISEASE: Note=A chromosomal aberration involving RAD51B is found in pulmonary chondroid hamartoma. Translocation t(6;14)(p21;q23- 24) with HMGA1. {ECO:0000269|PubMed:11978964}.; DISEASE: Note=A chromosomal aberration involving RAD51B is found in uterine leiomyoma. Translocation t(12;14)(q15;q23-24) with HMGA2. {ECO:0000269|PubMed:12649198, ECO:0000269|PubMed:9892177}.;
Recessive Scores
- pRec
- 0.102
Intolerance Scores
- RVIS EVS
- 0.93
- RVIS percentile EVS
- 89.79
Essentials
- Essential (CRISPR)
- E
- Essential (CRISPR2)
- S
- 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 | Medium |
| Cancer | Medium | Medium | Medium |