rs1085307088

Positions:

chr5-132642230-CAT-C

Variant summary

Our verdict is Uncertain significance. Variant got 5 ACMG points: 5P and 0B. PVS1_ModeratePM2PP5

The NM_005732.4(RAD50):c.3806_3807delAT(p.His1269fs) variant causes a frameshift change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,820 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

RAD50
NM_005732.4 frameshift

Scores

Not classified

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications P:1U:2

Conservation

PhyloP100: 8.84

Variant links:

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]

RAD50 links:

ENSG00000283782 (HGNC:):

ENSG00000283782 links:

TH2LCRR (HGNC:40495): (T helper type 2 locus control region associated RNA)

TH2LCRR links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 5 ACMG points.

PVS1

Loss of function variant, product does not undergo nonsense mediated mRNA decay. Variant is located in the 3'-most exon, not predicted to undergo nonsense mediated mRNA decay. Fraction of 0.0338 CDS is truncated, and there are 0 pathogenic variants in the truncated region.

PM2

Very rare variant in population databases, with high coverage;

PP5

Variant 5-132642230-CAT-C is Pathogenic according to our data. Variant chr5-132642230-CAT-C is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 225451.We mark this variant Likely_pathogenic, oryginal submissions are: {Uncertain_significance=2, Likely_pathogenic=1}.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
RAD50	NM_005732.4 link	c.3806_3807delAT	p.His1269fs	frameshift_variant	25/25	ENST00000378823.8	NP_005723.2	Q92878-1A5D6Y3
TH2LCRR	NR_132125.1 link	n.155_156delAT		non_coding_transcript_exon_variant	2/3
TH2LCRR	NR_132126.1 link	n.175-3967_175-3966delAT		intron_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
RAD50	ENST00000378823.8 link	c.3806_3807delAT	p.His1269fs	frameshift_variant	25/25	1	NM_005732.4	ENSP00000368100.4		Q92878-1
ENSG00000283782	ENST00000640655.2 link	c.3509_3510delAT	p.His1170fs	frameshift_variant	26/26	5		ENSP00000491596.2		A0A1W2PQ90

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000398

AC:

AN:

251296

Hom.:

AF XY:

0.00000736

AC XY:

AN XY:

135804

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0000544

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1461820

Hom.:

AF XY:

0.00000138

AC XY:

AN XY:

727218

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000252

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

Bravo

AF:

0.0000151

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Pathogenic:1Uncertain:2

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

Hereditary cancer-predisposing syndrome

Pathogenic:1Uncertain:1

Uncertain significance, criteria provided, single submitter	clinical testing	Ambry Genetics	Jan 17, 2020	The c.3806_3807delAT variant, located in coding exon 25 of the RAD50 gene, results from a deletion of two nucleotides at nucleotide positions 3806 to 3807, causing a translational frameshift with a predicted alternate stop codon (p.H1269Rfs*2). Frameshifts are typically deleterious in nature, however, this frameshift occurs at the 3' terminus of RAD50, is not expected to trigger nonsense-mediated mRNA decay, and impacts only the last 44 amino acids of the protein. The exact functional impact of these altered amino acids is unknown at this time. This alteration has been previously reported in a Chinese ovarian cancer patient who underwent multi-gene panel testing (Zhao Q et al. J Gynecol Oncol. 2017 Jan;28:e39). Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. -
Likely pathogenic, criteria provided, single submitter	clinical testing	Labcorp Genetics (formerly Invitae), Labcorp	Nov 15, 2021	Experimental studies and prediction algorithms are not available or were not evaluated, and the functional significance of this variant is currently unknown. ClinVar contains an entry for this variant (Variation ID: 225451). This premature translational stop signal has been observed in individual(s) with breast or ovarian cancer (PMID: 28541631, 29726012). This variant is present in population databases (no rsID available, gnomAD 0.006%). This sequence change creates a premature translational stop signal (p.His1269Argfs*2) in the RAD50 gene. While this is not anticipated to result in nonsense mediated decay, it is expected to disrupt the last 44 amino acid(s) of the RAD50 protein. This variant disrupts the ATPase-C domain, which is important for RAD50 ATPase activity (PMID: 10892749, 24894818). While functional studies have not been performed to directly test the effect of this variant on RAD50 protein function, this suggests that disruption of this region of the protein is causative of disease. In summary, the currently available evidence indicates that the variant is pathogenic, but additional data are needed to prove that conclusively. Therefore, this variant has been classified as Likely Pathogenic. -

Nijmegen breakage syndrome-like disorder

Uncertain:1

Uncertain significance, criteria provided, single submitter

reference population

Soonchunhyang University Bucheon Hospital, Soonchunhyang University Medical Center

Mar 18, 2016

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

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

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over