ClinVar Miner

Submissions for variant NM_032043.2(BRIP1):c.359G>A (p.Gly120Asp) (rs730881637)

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Total submissions: 3
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Color RCV000581551 SCV000689385 uncertain significance Hereditary cancer-predisposing syndrome 2018-10-20 criteria provided, single submitter clinical testing
GeneDx RCV000160340 SCV000210843 uncertain significance not provided 2016-03-31 criteria provided, single submitter clinical testing This variant is denoted BRIP1 c.359G>A at the cDNA level, p.Gly120Asp (G120D) at the protein level, and results in the change of a Glycine to an Aspartic acid (GGC>GAC). This variant has not, to our knowledge, been published in the literature as pathogenic or benign. This variant was not observed in approximately 6,500 individuals of European and African American ancestry in the NHLBI Exome Sequencing Project, suggesting it is not a common benign variant in these populations. Since Glycine and Aspartic Acid differ in polarity, charge, size or other properties, this is considered a non-conservative amino acid substitution. BRIP1 Gly120Asp occurs at a position that is not conserved and is located in the helicase ATP-binding domain (Cantor 2011, UniProt). In silico analyses predict that this variant is unlikely to alter protein structure or function. Based on currently available information, it is unclear whether BRIP1 Gly120Asp is pathogenic or benign. We consider it to be a variant of uncertain significance.
Invitae RCV000532063 SCV000633682 uncertain significance Familial cancer of breast; Fanconi anemia, complementation group J 2018-06-27 criteria provided, single submitter clinical testing This sequence change replaces glycine with aspartic acid at codon 120 of the BRIP1 protein (p.Gly120Asp). The glycine residue is weakly conserved and there is a moderate physicochemical difference between glycine and aspartic acid. This variant is not present in population databases (ExAC no frequency). This variant has not been reported in the literature in individuals with BRIP1-related disease. ClinVar contains an entry for this variant (Variation ID: 182350). Algorithms developed to predict the effect of missense changes on protein structure and function output the following: SIFT: "Tolerated"; PolyPhen-2: "Benign"; Align-GVGD: "Class C0". The aspartic acid amino acid residue is found in multiple mammalian species, suggesting that this missense change does not adversely affect protein function. These predictions have not been confirmed by published functional studies and their clinical significance is uncertain. 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.

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