chr5-132591875-A-G

Variant names:

• chr5-132591875-A-G
• rs1554098466
• NM_005732.4:c.1636-2A>G

Variant summary

Our verdict is Pathogenic. The variant received 16 ACMG points: 16P and 0B. PVS1 PP5_Very_Strong

The NM_005732.4(RAD50):​c.1636-2A>G variant causes a splice acceptor, intron change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000905 in 1,437,000 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. 3/3 splice prediction tools predicting alterations to normal splicing. Variant has been reported in ClinVar as Likely pathogenic (★★).

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000090 (0 hom.)
• Consequence: RAD50 NM_005732.4 splice_acceptor, intron
• Scores: Splicing: ADA: 1.000
• Clinical Significance: Pathogenic/Likely pathogenic criteria provided, multiple submitters, no conflicts P:2
• Conservation: PhyloP100: 8.72
• Publications: 0 publications found

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 Gene-Disease associations (from GenCC):

• Nijmegen breakage syndrome-like disorder

  Inheritance: AR Classification: STRONG, LIMITED Submitted by: Ambry Genetics, G2P, Labcorp Genetics (formerly Invitae)
• familial ovarian cancer

  Inheritance: AD Classification: NO_KNOWN Submitted by: ClinGen
• hereditary breast carcinoma

  Inheritance: AD Classification: NO_KNOWN Submitted by: ClinGen

ENSG00000283782 (HGNC:):

ACMG classification

Our verdict: Pathogenic. The variant received 16 ACMG points.

• PVS1: Splicing +-2 bp (donor or acceptor) variant, LoF is a know mechanism of disease, No cryptic splice site detected. Exon removal results in frameshift change.
• PP5: Variant 5-132591875-A-G is Pathogenic according to our data. Variant chr5-132591875-A-G is described in ClinVar as Pathogenic/Likely_pathogenic. ClinVar VariationId is 527365.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

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

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	RAD50	NM_005732.4	MANE Select	c.1636-2A>G		splice_acceptor intron	N/A	NP_005723.2

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	RAD50	ENST00000378823.8	TSL:1 MANE Select	c.1636-2A>G		splice_acceptor intron	N/A	ENSP00000368100.4	Q92878-1
	ENSG00000283782	ENST00000638452.2	TSL:5	c.1339-2A>G		splice_acceptor intron	N/A	ENSP00000492349.2	A0A1W2PQ90
	RAD50	ENST00000533482.5	TSL:1	n.*1262-2A>G		splice_acceptor intron	N/A	ENSP00000431225.1	E9PM98

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 0.00000905 AC: 13 AN: 1437000 Hom.: 0 Cov.: 31 AF XY: 0.00000978 AC XY: 7 AN XY: 716008

African (AFR) AF: 0.00 AC: 0 AN: 32758

American (AMR) AF: 0.00 AC: 0 AN: 44502

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 25946

East Asian (EAS) AF: 0.00 AC: 0 AN: 39410

South Asian (SAS) AF: 0.00 AC: 0 AN: 85198

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53346

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 4820

European-Non Finnish (NFE) AF: 0.0000119 AC: 13 AN: 1091530

Other (OTH) AF: 0.00 AC: 0 AN: 59490

GnomAD4 genome Cov.: 32

ClinVar

ClinVar submissions

Significance: Pathogenic/Likely pathogenic

Revision: criteria provided, multiple submitters, no conflicts

Pathogenic	VUS	Benign	Condition
2	-	-	Hereditary cancer-predisposing syndrome (2)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_addAF	Pathogenic	0.63	D
BayesDel_noAF	Pathogenic	0.26
CADD	Pathogenic	31
DANN	Uncertain	0.99
Eigen	Pathogenic	1.2
Eigen_PC	Pathogenic	1.0
FATHMM_MKL	Pathogenic	0.99	D
PhyloP100		8.7
GERP RS		6.1
Mutation Taster		=0/100	disease causing (ClinVar)

Splicing

Name	Calibrated prediction	Score	Prediction
dbscSNV1_ADA	Pathogenic	1.0
dbscSNV1_RF	Pathogenic	0.93
SpliceAI score (max)		0.99		Details are displayed if max score is > 0.2
DS_AL_spliceai		0.99		Position offset: 2

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

Other links and lift over

dbSNP: rs1554098466; hg19: chr5-131927567;