Submissions for variant NM_000352.6(ABCC8):c.2206G>T (p.Ala736Ser)

gnomAD frequency: 0.00003  dbSNP: rs191697443

Total submissions: 7

Submitter	RCV	SCV	Clinical significance	Condition	Last evaluated	Review status	Method	Comment
Illumina Laboratory Services, Illumina	RCV001102695	SCV001259380	uncertain significance	Diabetes mellitus, transient neonatal, 2	2018-01-15	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.
Illumina Laboratory Services, Illumina	RCV001102696	SCV001259381	uncertain significance	Permanent neonatal diabetes mellitus	2018-01-15	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.
Illumina Laboratory Services, Illumina	RCV001107931	SCV001265119	uncertain significance	Hyperinsulinemic hypoglycemia, familial, 1	2018-01-15	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	RCV002251552	SCV002522243	uncertain significance	Maturity onset diabetes mellitus in young		criteria provided, single submitter	research	Mutations in ABCC8 gene are associated with both neonatal diabetes mellitus as well as MODY. Patients with this mutation may have a better response to sulfonylureas. However, no sufficient evidence is found to ascertain the role of this particular variant ( rs191697443) in MODY yet.
Clinical Genomics, Uppaluri K&H Personalized Medicine Clinic	RCV002251553	SCV002522245	uncertain significance	Transitory neonatal diabetes mellitus		criteria provided, single submitter	research	Mutations in ABCC8 gene are associated with both neonatal diabetes mellitus as well as MODY. Patients with this mutation may have a better response to sulfonylureas. However, no sufficient evidence is found to ascertain the role of this particular variant ( rs191697443) in neonatal diabetes yet.
Fulgent Genetics, Fulgent Genetics	RCV002482184	SCV002786700	uncertain significance	Diabetes mellitus, transient neonatal, 2; Hyperinsulinemic hypoglycemia, familial, 1; Leucine-induced hypoglycemia; Type 2 diabetes mellitus; Diabetes mellitus, permanent neonatal 3	2022-03-15	criteria provided, single submitter	clinical testing
PreventionGenetics, part of Exact Sciences	RCV003405313	SCV004106713	uncertain significance	ABCC8-related condition	2022-10-14	criteria provided, single submitter	clinical testing	The ABCC8 c.2206G>T variant is predicted to result in the amino acid substitution p.Ala736Ser. To our knowledge, this variant has not been reported in the literature. This variant is reported in 0.0054% of alleles in individuals of European (Non-Finnish) descent in gnomAD (http://gnomad.broadinstitute.org/variant/11-17448612-C-A). At this time, the clinical significance of this variant is uncertain due to the absence of conclusive functional and genetic evidence.