ClinVar Miner

Submissions for variant NM_015120.4(ALMS1):c.3314G>A (p.Gly1105Asp) (rs201074268)

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Total submissions: 4
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
GeneDx RCV000419259 SCV000529307 likely benign not specified 2018-01-11 criteria provided, single submitter clinical testing This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease.
Invitae RCV000468687 SCV000554309 likely benign Alstrom syndrome 2019-12-25 criteria provided, single submitter clinical testing
Personalized Diabetes Medicine Program,University of Maryland School of Medicine RCV001172515 SCV001335568 benign Monogenic diabetes 2019-01-25 criteria provided, single submitter research ACMG criteria: BP4 (8 predictors + REVEL score 0.117), BS2 (1 homozygotes in gnomAD), BP1 (missense when truncating are cause of disease)= benign
Integrated Genetics/Laboratory Corporation of America RCV000419259 SCV001363027 likely benign not specified 2020-08-31 criteria provided, single submitter clinical testing Variant summary: ALMS1 c.3308G>A (p.Gly1103Asp), also reported as c.3314G>A (p.Gly1105Asp), results in a non-conservative amino acid change located in the Alstrom syndrome repeat (IPR040972) of the encoded protein sequence. Four of five in-silico tools predict a benign effect of the variant on protein function. The variant allele was found at a frequency of 0.0019 in 248562 control chromosomes, predominantly at a frequency of 0.0026 within the Non-Finnish European subpopulation in the gnomAD database, including 1 homozygote. The observed variant frequency within Non-Finnish European control individuals in the gnomAD database is approximately 2-fold of the estimated maximal expected allele frequency for a pathogenic variant in ALMS1 causing Alstrom Syndrome phenotype (0.0014), strongly suggesting that the variant is a benign polymorphism found primarily in populations of Non-Finnish European origin. Although the variant has been reported in a paper describing the mutational spectrum of Alstrom syndrome, this publication provides no primary evidence supporting a pathogenic outcome (Marshall_2015). To our knowledge, no other occurrence of c.3308G>A in individuals affected with Alstrom Syndrome and no experimental evidence demonstrating its impact on protein function have been reported. Three ClinVar submitters (evaluation after 2014) cite the variant as benign/likely benign. Based on the evidence outlined above, the variant was classified as likely benign.

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