About RAD51B
No gene-level summary was recorded for this case.
No variant summary was recorded for this case.
Five-step scale from benign to pathogenic. This variant is likely benign. Select a step to read what it means.
Likely benign.A likely benign classification under the recorded framework.
Gene-level background from the recorded interpretation.
Words with a dotted underline have a short definition. Hover or tap them.No gene-level summary was recorded for this case.
The recorded framework is Not recorded. The criteria and strengths shown below come from the saved assessment; this page does not recalculate the classification.
The applied criteria and their strengths are shown as assessed under the stated framework.
No pathogenic criterion marked as applied in the recorded assessment.
This variant exceeds the 0.3% allele frequency threshold for a presumed dominant disorder in the South Asian subpopulation. In gnomAD v2.1, the SAS AF is 0.358% (109/30,430 alleles) with 1 homozygote, and in gnomAD v4.1, the SAS AF is 0.337% (305/90,530 alleles) with 3 homozygotes. The grpmax filtering allele frequency is 0.303% (v2.1). The presence of homozygous individuals in a population database further supports that this variant is too common to be a highly penetrant pathogenic variant. Assessed at supporting strength rather than strong benign due to the population-specific nature of the elevated frequency.
Multiple lines of computational evidence consistently predict no damaging effect: REVEL score 0.385 (below the published 0.5 threshold for pathogenicity), BayesDel score 0.129 (near-zero, consistent with benign impact), and SpliceAI max delta score 0.00 (no predicted splice alteration). All available in silico tools agree on a benign prediction.
This variant is classified as Likely benign in ClinVar (Variation ID 1678949) by three clinical laboratories: Ambry Genetics, PreventionGenetics (part of Exact Sciences), and the National Health Laboratory Service. While the review status is 'criteria provided, single submitter' and no expert panel review has been performed, the consensus from multiple clinical testing laboratories supports a benign interpretation.
gene-specific framework lacked a usable explicit final combination framework, so generic ACMG/AMP 2015 final-combination rules were applied as fallback; applied criteria: BS1 supporting, BP4 supporting, BP6 supporting; combination = 3 supporting benign, which maps to Likely Benign.
Evidence summaries and captured source records, where available. Missing entries should not be interpreted as negative findings.
gnomAD v4.1: 384 / 1,608,480 alleles. Recorded AF 0.000238735. Recorded homozygote count 3.
This variant is present in gnomAD v2.1 (AF= 0.000418624; MAF= 0.04186%, 118/281876 alleles, homozygotes = 1) and has highest observed frequency in the South Asian population (AF= 0.00358199; MAF= 0.35820%, 109/30430 alleles, homozygotes = 1); grpmax FAF= 0.00303643.
This variant is present in gnomAD-Canada v1.0 (AF= 0.0006515365403409708, 12/18418 alleles, homozygotes = 0).
Recorded SpliceAI maximum delta score: 0.000. Refer to the recorded PP3/BP4 rationale for interpretation.
3 Likely benign.
OncoKB did not identify variant-specific reviewed functional evidence for this variant; gene-level curated context is available for reviewer follow-up. RAD51B, a DNA repair protein involved in homologous recombination, is altered by mutation in various cancer types.
This variant has previously been reported in somatic cancers (COSMIC; COSV66846898, n = 2 times).
This variant does not lie in a statistically significant hotspot.
ACMG/AMP criteria under Not recorded, with the data and sources behind each one.
26 criteria with recorded statuses: 3 met · 8 not met · 12 not assessed · 3 not applicable. Open any row for the full reasoning, the rule and the evidence behind it.
NM_133509.4:c.476G>A (p.Arg159His) in RAD51B is classified as Likely benign based on three supporting benign criteria per the generic ACMG/AMP 2015 framework (PMID:25741868). The generic ACMG combination rules require ≥2 supporting benign criteria for Likely benign classification.
The variant exceeds the 0.3% BS1 allele frequency threshold in the South Asian subpopulation (gnomAD v2.1 SAS AF = 0.358%, 109/30,430 alleles, 1 homozygote; gnomAD v4.1 SAS AF = 0.337%, 305/90,530 alleles, 3 homozygotes; grpmax FAF = 0.303%), indicating it is too common to be a highly penetrant pathogenic variant (BS1_supporting).
Multiple in silico tools predict a benign impact: REVEL score 0.385 (below 0.5 threshold), BayesDel score 0.129 (near-zero), and SpliceAI max delta 0.00 (no splice impact), meeting BP4_supporting.
ClinVar reports this variant as Likely benign from three clinical testing laboratories (Ambry Genetics, PreventionGenetics, NHLS; Variation ID 1678949), meeting BP6_supporting.
No pathogenic or likely pathogenic criteria were met. PVS1 does not apply to this missense variant. PS3/PS4 are not met due to absence of variant-specific functional or case-control data. PM2 is not met as the variant frequency exceeds 0.1% in the South Asian population. PP3 is not met because all in silico tools predict a benign effect. PP5 is not met as ClinVar reports Likely benign, not pathogenic.
No criteria match.
Every interpreted variant in RAD51B, mapped onto the exon structure of NM_133509.4. Select a row to find it on the plot.
| Protein | Location | Classification | Link |
|---|
| South Asian305 / 90,530 | 0.00343 hom |
| Remaining individuals18 / 62,184 | 0.00029 |
| Admixed American14 / 59,870 | 0.00023 |
| Middle Eastern1 / 6,028 | 0.00017 |
| European (non-Finnish)43 / 1,176,150 | 3.7e-05 |
| European (Finnish)2 / 63,862 | 3.1e-05 |
| East Asian1 / 44,766 | 2.2e-05 |
| South Asian109 / 30,430 | 0.00361 hom |
| Remaining individuals2 / 7,188 | 0.00028 |
| Admixed American4 / 35,218 | 0.00011 |
| European (Finnish)2 / 25,080 | 8e-05 |
| European (non-Finnish)1 / 128,786 | 7.8e-06 |
This variant is present in gnomAD v4.1 (AF= 0.000238735; MAF= 0.02387%, 384/1608480 alleles, homozygotes = 3) and has highest observed frequency in the South Asian population (AF= 0.00336905; MAF= 0.33690%, 305/90530 alleles, homozygotes = 3); grpmax FAF= 0.00305752.
This variant is present in gnomAD v2.1 (AF= 0.000418624; MAF= 0.04186%, 118/281876 alleles, homozygotes = 1) and has highest observed frequency in the South Asian population (AF= 0.00358199; MAF= 0.35820%, 109/30430 alleles, homozygotes = 1); grpmax FAF= 0.00303643.
This variant is present in gnomAD-Canada v1.0 (AF= 0.0006515365403409708, 12/18418 alleles, homozygotes = 0).
SpliceAI predicts no significant splice impact for this variant (max delta score = 0.00). REVEL score = 0.385. BayesDel score = 0.129411.
6 paper records listed. No publication is explicitly linked to an applied criterion in the recorded metadata. None of the listed paper records explicitly indicates that the variant is named.
Screenshots represent source records captured during evidence collection. Select one to view the recorded source content.
The evidence statements recorded by the interpretation pipeline. They have not been reinterpreted by the page.
This variant is present in gnomAD v4.1 (AF= 0.000238735; MAF= 0.02387%, 384/1608480 alleles, homozygotes = 3) and has highest observed frequency in the South Asian population (AF= 0.00336905; MAF= 0.33690%, 305/90530 alleles, homozygotes = 3); grpmax FAF= 0.00305752.
This variant is present in gnomAD v2.1 (AF= 0.000418624; MAF= 0.04186%, 118/281876 alleles, homozygotes = 1) and has highest observed frequency in the South Asian population (AF= 0.00358199; MAF= 0.35820%, 109/30430 alleles, homozygotes = 1); grpmax FAF= 0.00303643.
This variant is present in gnomAD-Canada v1.0 (AF= 0.0006515365403409708, 12/18418 alleles, homozygotes = 0).
This variant has been reported in ClinVar as Likely benign (3 clinical laboratories). (ClinVarID = 1678949)
SpliceAI predicts no significant splice impact for this variant (max delta score = 0.00). REVEL score = 0.385. BayesDel score = 0.129411.
OncoKB did not identify variant-specific reviewed functional evidence for this variant; gene-level curated context is available for reviewer follow-up. RAD51B, a DNA repair protein involved in homologous recombination, is altered by mutation in various cancer types.
This variant does not lie in a statistically significant hotspot. This variant has previously been reported in somatic cancers (COSMIC; COSV66846898, n = 2 times).
This variant does not lie in a statistically significant hotspot.