NM_058216.3:c.838-20C>T

Variant names:

• chr17-58720726-C-T
• rs766600284
• NM_058216.3:c.838-20C>T

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_058216.3(RAD51C):​c.838-20C>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000698 in 1,432,460 control chromosomes in the GnomAD database, with no homozygous occurrence. 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: not found (cov: 31)
  • Exomes 𝑓: 7.0e-7 (0 hom.)
• Consequence: RAD51C NM_058216.3 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.794
• Publications: 0 publications found

Genes affected

RAD51C (HGNC:9820): (RAD51 paralog C) This gene is a member of the RAD51 family. RAD51 family members are highly similar to bacterial RecA and Saccharomyces cerevisiae Rad51 and are known to be involved in the homologous recombination and repair of DNA. This protein can interact with other RAD51 paralogs and is reported to be important for Holliday junction resolution. Mutations in this gene are associated with Fanconi anemia-like syndrome. This gene is one of four localized to a region of chromosome 17q23 where amplification occurs frequently in breast tumors. Overexpression of the four genes during amplification has been observed and suggests a possible role in tumor progression. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jul 2013]

RAD51C Gene-Disease associations (from GenCC):

• RAD51C-related cancer predisposition

  Inheritance: AD Classification: DEFINITIVE Submitted by: ClinGen
• breast-ovarian cancer, familial, susceptibility to, 3

  Inheritance: AD Classification: STRONG, LIMITED Submitted by: Genomics England PanelApp, Ambry Genetics, Labcorp Genetics (formerly Invitae)
• Fanconi anemia complementation group O

  Inheritance: AR Classification: STRONG, MODERATE, LIMITED Submitted by: Ambry Genetics, ClinGen, Labcorp Genetics (formerly Invitae), G2P
• hereditary breast ovarian cancer syndrome

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
• Fanconi anemia

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

Our verdict: Likely_benign. The variant received -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.72).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_058216.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	RAD51C	NM_058216.3	MANE Select	c.838-20C>T		intron	N/A	NP_478123.1	O43502-1
	RAD51C	NR_103872.2		n.713-20C>T		intron	N/A

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	RAD51C	ENST00000337432.9	TSL:1 MANE Select	c.838-20C>T		intron	N/A	ENSP00000336701.4	O43502-1
	RAD51C	ENST00000482007.5	TSL:1	n.*266-20C>T		intron	N/A	ENSP00000433332.1	Q7KZJ0
	RAD51C	ENST00000930423.1		c.940-20C>T		intron	N/A	ENSP00000600482.1

Frequencies

GnomAD3 genomes Cov.: 31

GnomAD4 exome AF: 6.98e-7 AC: 1 AN: 1432460 Hom.: 0 Cov.: 29 AF XY: 0.00 AC XY: 0 AN XY: 714426

African (AFR) AF: 0.00 AC: 0 AN: 32810

American (AMR) AF: 0.00 AC: 0 AN: 44582

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 25876

East Asian (EAS) AF: 0.00 AC: 0 AN: 39456

South Asian (SAS) AF: 0.00 AC: 0 AN: 85650

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 52936

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5598

European-Non Finnish (NFE) AF: 9.21e-7 AC: 1 AN: 1086212

Other (OTH) AF: 0.00 AC: 0 AN: 59340

GnomAD4 genome Cov.: 31

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.72
CADD	Benign	1.3
DANN	Benign	0.46
PhyloP100		-0.79

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: rs766600284; hg19: chr17-56798087; COSMIC: COSV61676546;