Genetic Variant RAD50:p.Ser1257Pro (chr5-132642194-T-C) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_005732.4(RAD50):c.3769T>C(p.Ser1257Pro) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. 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. S1257A) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)

Consequence

RAD50
NM_005732.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.85

Publications

2 publications found

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:

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_005732.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
RAD50	NM_005732.4	MANE Select	c.3769T>C	p.Ser1257Pro	missense	Exon 25 of 25	NP_005723.2
TH2LCRR	NR_132125.1		n.189+4A>G		splice_region intron	N/A
TH2LCRR	NR_132126.1		n.175-3929A>G		intron	N/A

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
RAD50	ENST00000378823.8	TSL:1 MANE Select	c.3769T>C	p.Ser1257Pro	missense	Exon 25 of 25	ENSP00000368100.4
ENSG00000283782	ENST00000638452.2	TSL:5	c.3472T>C	p.Ser1158Pro	missense	Exon 27 of 27	ENSP00000492349.2
RAD50	ENST00000533482.5	TSL:1	n.*3395T>C		non_coding_transcript_exon	Exon 25 of 25	ENSP00000431225.1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

Cov.:

GnomAD4 genome

Cov.:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Hereditary cancer-predisposing syndrome

Uncertain:1

Aug 14, 2019

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

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 are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Tolerated"; PolyPhen-2: "Possibly Damaging"; Align-GVGD: "Class C0"). 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 serine with proline at codon 1257 of the RAD50 protein (p.Ser1257Pro). The serine residue is moderately conserved and there is a moderate physicochemical difference between serine and proline.

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.92

BayesDel_addAF

Uncertain

0.16

BayesDel_noAF

Uncertain

-0.010

CADD

Pathogenic

(source)

DANN

Pathogenic

1.0

DEOGEN2

Uncertain

0.53

Eigen

Uncertain

0.62

Eigen_PC

Uncertain

0.63

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Uncertain

0.93

M_CAP

Benign

0.0067

MetaRNN

Uncertain

0.62

MetaSVM

Benign

-1.1

MutationAssessor

Uncertain

2.6

PhyloP100

5.9

PrimateAI

Pathogenic

0.86

REVEL

Benign

0.16

Sift4G

Benign

0.070

Polyphen

0.97

Vest4

0.38

MutPred

0.56

Gain of ubiquitination at K1254 (P = 0.1278)

MVP

0.72

ClinPred

0.97

GERP RS

5.6

Varity_R

0.81

gMVP

0.91

Mutation Taster

=62/38

polymorphism

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over