ClinVar Miner

Submissions for variant NM_015120.4(ALMS1):c.7291A>G (p.Ser2431Gly) (rs539112266)

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Total submissions: 1
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
GeneDx RCV000430965 SCV000532989 uncertain significance not provided 2016-10-24 criteria provided, single submitter clinical testing A variant of uncertain significance has been identified in the ALMS1 gene. The S2431G variant has not been published as a pathogenic variant, nor has it been reported as a benign variant to our knowledge. The S2431G variant was not observed in approximately 6000 individuals of European and African American ancestry in the NHLBI Exome Sequencing Project, indicating it is not a common benign variant in these populations. The S2431G variant is a non-conservative amino acid substitution, which is likely to impact secondary protein structure as these residues differ in polarity, charge, size and/or other properties. Subsequently, although this substitution occurs at a position where amino acids with similar properties to serine are tolerated across species, G2431 is not tolerated. Splicing algorithims predict that this change may create a cryptic splice donor site that is upstream of the natural donor site, however, functional studies are necessary to determine the consequences of this change. Lastly, while some missense variants have been reported in association with Alstrom syndrome, most pathogenic variants in ALMS1 reported to date introduce a premature termination codon (Marshall et al., 2012; Stenson et al., 2014).

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