chr14-68283210-G-A

Variant names:

• chr14-68283210-G-A
• rs3784099
• NM_133510.4:c.757-8674G>A

Variant summary

Our verdict is Benign. The variant received -12 ACMG points: 0P and 12B. BP4_Strong BA1

The NM_133510.4(RAD51B):​c.757-8674G>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.418 in 152,016 control chromosomes in the GnomAD database, including 17,017 homozygotes. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: 𝑓 0.42 (17017 hom., cov: 32)
• Consequence: RAD51B NM_133510.4 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 1.92
• Publications: 71 publications found

Genes affected

RAD51B (HGNC:9822): (RAD51 paralog B) 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]

RAD51B Gene-Disease associations (from GenCC):

• primary ovarian failure

  Inheritance: AR Classification: LIMITED Submitted by: Ambry Genetics

ACMG classification

Our verdict: Benign. The variant received -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.61).
• BA1: GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.757 is higher than 0.05.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_133510.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	RAD51B	NM_133510.4	MANE Select	c.757-8674G>A		intron	N/A	NP_598194.1
	RAD51B	NM_001321821.2		c.757-8674G>A		intron	N/A	NP_001308750.1
	RAD51B	NM_133509.5		c.757-8674G>A		intron	N/A	NP_598193.2

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	RAD51B	ENST00000471583.6	TSL:1 MANE Select	c.757-8674G>A		intron	N/A	ENSP00000418859.1
	RAD51B	ENST00000487861.5	TSL:1	c.757-8674G>A		intron	N/A	ENSP00000419881.1
	RAD51B	ENST00000487270.5	TSL:1	c.757-8674G>A		intron	N/A	ENSP00000419471.1

Frequencies

GnomAD3 genomes AF: 0.418 AC: 63452 AN: 151896 Hom.: 16995 Cov.: 32

Gnomad AFR AF: 0.765

Gnomad AMI AF: 0.323

Gnomad AMR AF: 0.303

Gnomad ASJ AF: 0.393

Gnomad EAS AF: 0.114

Gnomad SAS AF: 0.208

Gnomad FIN AF: 0.312

Gnomad MID AF: 0.497

Gnomad NFE AF: 0.289

Gnomad OTH AF: 0.430

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome AF: 0.418 AC: 63515 AN: 152016 Hom.: 17017 Cov.: 32 AF XY: 0.412 AC XY: 30622 AN XY: 74282

African (AFR) AF: 0.765 AC: 31692 AN: 41452

American (AMR) AF: 0.303 AC: 4632 AN: 15278

Ashkenazi Jewish (ASJ) AF: 0.393 AC: 1363 AN: 3470

East Asian (EAS) AF: 0.114 AC: 592 AN: 5178

South Asian (SAS) AF: 0.206 AC: 992 AN: 4822

European-Finnish (FIN) AF: 0.312 AC: 3289 AN: 10550

Middle Eastern (MID) AF: 0.507 AC: 149 AN: 294

European-Non Finnish (NFE) AF: 0.289 AC: 19609 AN: 67948

Other (OTH) AF: 0.427 AC: 902 AN: 2112

Alfa AF: 0.329 Hom.: 40979

Bravo AF: 0.437

Asia WGS AF: 0.208 AC: 722 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.61
CADD	Benign	18
DANN	Benign	0.55
PhyloP100		1.9
Mutation Taster		=100/0	polymorphism (auto)

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.0		Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Other links and lift over

dbSNP: rs3784099; hg19: chr14-68749927;