ClinVar Miner

Submissions for variant NM_000545.8(HNF1A):c.99G>A (p.Pro33=)

gnomAD frequency: 0.00006  dbSNP: rs538619966
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Total submissions: 4
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Labcorp Genetics (formerly Invitae), Labcorp RCV000861547 SCV001001901 likely benign not provided 2023-09-15 criteria provided, single submitter clinical testing
Illumina Laboratory Services, Illumina RCV001112157 SCV001269784 uncertain significance Maturity-onset diabetes of the young type 3 2018-01-13 criteria provided, single submitter clinical testing This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score, this variant could not be ruled out of causing disease and therefore its association with disease required further investigation. A literature search was performed for the gene, cDNA change, and amino acid change (if applicable). No publications were found based on this search. This variant was therefore classified as a variant of unknown significance for this disease.
Clinical Genomics, Uppaluri K&H Personalized Medicine Clinic RCV002332758 SCV002601649 benign Maturity onset diabetes mellitus in young criteria provided, single submitter research Mutations in HNF1A gene can predispose to MODY3. It is associated with both micro and macrovascular complications of diabetes, especially cardiovascular complications. Associated with glucosuria. May respond well to sulfonylureas. However, more evidence is required to confer the association of this particular variant rs538619966 with MODY3.
Ambry Genetics RCV002332758 SCV002694101 likely benign Maturity onset diabetes mellitus in young 2022-10-09 criteria provided, single submitter clinical testing This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity.

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