5-132595005-A-G

Position:

• chr5-132595005-A-G

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2 BP4

The ENST00000378823.8(RAD50):​c.1930A>G​(p.Arg644Gly) variant causes a missense change. The variant allele was found at a frequency of 0.000000684 in 1,461,524 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R644K) has been classified as Uncertain significance.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: RAD50 ENST00000378823.8 missense
• Clinical Significance: Uncertain significance criteria provided, multiple submitters, no conflicts U:3
• Conservation: PhyloP100: 5.20

Genes affected

RAD50 (HGNC:9816): (RAD50 double strand break repair protein) The protein encoded by this gene is highly similar to Saccharomyces cerevisiae Rad50, a protein involved in DNA double-strand break repair. This protein forms a complex with MRE11 and NBS1. The protein complex binds to DNA and displays numerous enzymatic activities that are required for nonhomologous joining of DNA ends. This protein, cooperating with its partners, is important for DNA double-strand break repair, cell cycle checkpoint activation, telomere maintenance, and meiotic recombination. Knockout studies of the mouse homolog suggest this gene is essential for cell growth and viability. Mutations in this gene are the cause of Nijmegen breakage syndrome-like disorder.[provided by RefSeq, Apr 2010]

ACMG classification

Verdict is Uncertain_significance. Variant got 1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.3008889).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
RAD50	NM_005732.4	c.1930A>G	p.Arg644Gly	missense_variant	12/25	ENST00000378823.8	NP_005723.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
RAD50	ENST00000378823.8	c.1930A>G	p.Arg644Gly	missense_variant	12/25	1	NM_005732.4	ENSP00000368100	P1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 6.84e-7 AC: 1 AN: 1461524 Hom.: 0 Cov.: 31 AF XY: 0.00000138 AC XY: 1 AN XY: 727088

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.0000116

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:3

Revision: criteria provided, multiple submitters, no conflicts

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Women's Health and Genetics/Laboratory Corporation of America, LabCorp

Sep 08, 2022

- -

Hereditary cancer-predisposing syndrome Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Sep 11, 2019

In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. Algorithms developed to predict the effect of missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest that this variant is likely to be tolerated, but these predictions have not been confirmed by published functional studies and their clinical significance is uncertain. This variant has not been reported in the literature in individuals with RAD50-related conditions. This variant is not present in population databases (ExAC no frequency). This sequence change replaces arginine with glycine at codon 644 of the RAD50 protein (p.Arg644Gly). The arginine residue is moderately conserved and there is a moderate physicochemical difference between arginine and glycine. -

Nijmegen breakage syndrome-like disorder Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Baylor Genetics

Dec 17, 2023

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.20
BayesDel_addAF	Benign	-0.095	T
BayesDel_noAF	Benign	-0.37
CADD	Benign	23
DANN	Uncertain	0.99
DEOGEN2	Benign	0.34	.;.;.;T;T
Eigen	Benign	-0.044
Eigen_PC	Benign	0.17
FATHMM_MKL	Uncertain	0.89	D
LIST_S2	Uncertain	0.91	.;.;D;D;D
M_CAP	Benign	0.011	T
MetaRNN	Benign	0.30	T;T;T;T;T
MetaSVM	Benign	-1.0	T
MutationAssessor	Benign	1.2	.;.;.;L;.
MutationTaster	Benign	1.0	N;N
PrimateAI	Benign	0.41	T
PROVEAN	Uncertain	-2.5	.;.;.;.;D
REVEL	Benign	0.16
Sift	Benign	0.054	.;.;.;.;T
Sift4G	Benign	0.17	.;.;.;T;D
Polyphen		0.019	.;.;.;B;.
Vest4		0.34
MutPred		0.61		.;.;.;Loss of stability (P = 0.1184);.;
MVP		0.44
ClinPred		0.91	D
GERP RS		5.9
Varity_R		0.40
gMVP		0.35

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

Publications

LitVar

Other links and lift over

dbSNP: rs876659631; hg19: chr5-131930697;