ClinVar Miner

Submissions for variant NM_005732.4(RAD50):c.379G>A (p.Val127Ile) (rs28903086)

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Total submissions: 5
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
GeneDx RCV000590280 SCV000149869 uncertain significance not provided 2014-02-21 criteria provided, single submitter clinical testing RAD50 has been only recently described in association with cancer predisposition and the risks are not well understood. This variant is denoted RAD50 c.379G>A at the cDNA level and p.Val127Ile (V127I) at the protein level, and results in the change of a Valine to a Isoleucine (GTC>ATC). RAD50 Val127Ile has been reported in two individuals with breast cancer in British studies and in two individuals with laryngeal cancer in a Polish study, but was also detected in at least five healthy controls (Tommiska 2006, Mosor 2010, Mosor 2013, Ziolkowska-Suchanek 2013). RAD50 Val127Ile was observed with an allele frequency of 0.1% in 1000 Genomes and at 0.2% and 0.05% in European and African Americans in the NHLBI Exome Sequencing Project respectively, indicating it is not a common benign variant in these populations. This variant is a conservative substitution of one neutral non-polar amino acid for another, altering a position that is highly conserved throughout evolution, and is not located in a known functional domain. In silico analyses are inconsistent with regard to the effect this variant may have on protein structure and function. At a molecular level, the impact of this missense variant on protein structure and function is not known and thus we consider this to be a variant of uncertain significance. Furthermore, based on the currently available information, cancer risks associated with this variant, and the RAD50 gene, remain unclear.
Ambry Genetics RCV000115960 SCV000183854 benign Hereditary cancer-predisposing syndrome 2014-07-11 criteria provided, single submitter clinical testing
Invitae RCV000115960 SCV000253469 benign Hereditary cancer-predisposing syndrome 2019-12-31 criteria provided, single submitter clinical testing
Counsyl RCV000409627 SCV000488865 uncertain significance Nijmegen breakage syndrome-like disorder 2016-07-07 criteria provided, single submitter clinical testing
Integrated Genetics/Laboratory Corporation of America RCV000590280 SCV000698654 benign not provided 2016-08-29 criteria provided, single submitter clinical testing Variant summary: The RAD50 c.379G>A (p.Val127Ile) variant involves the alteration of a conserved nucleotide. 2/4 in silico tools predict a benign outcome for this variant. This variant was found in 205/124248 control chromosomes (1 homozygote) at a frequency of 0.0016499, which is approximately 26 times the estimated maximal expected allele frequency of a pathogenic RAD50 variant (0.0000625), suggesting this variant is likely a benign polymorphism. This variant has been reported from case-control studies in literature. In a large case-control study, this variant was not associated with increased risk for breast cancer (Haiman_2013). 1/3 clinical diagnostic laboratories in ClinVar has classified this variant as likely benign. Taken together, this variant is classified as Benign.

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