chr18-22171316-A-G
Variant summary
Our verdict is Likely benign. The variant received -2 ACMG points: 0P and 2B. BP4_Moderate
The NM_005257.6(GATA6):c.172A>G(p.Ser58Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000974 in 1,437,034 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).
Frequency
Consequence
NM_005257.6 missense
Scores
Clinical Significance
Conservation
Publications
- atrial septal defect 9Inheritance: AD Classification: DEFINITIVE, LIMITED Submitted by: G2P, Ambry Genetics
- atrioventricular septal defect 5Inheritance: AD Classification: DEFINITIVE, LIMITED Submitted by: G2P, Labcorp Genetics (formerly Invitae)
- GATA6-related congenital heart disease with or without pancreatic agenesis or neonatal diabetesInheritance: AD Classification: DEFINITIVE Submitted by: ClinGen
- pancreatic hypoplasia-diabetes-congenital heart disease syndromeInheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Orphanet, Genomics England PanelApp, Ambry Genetics, G2P, Labcorp Genetics (formerly Invitae)
- metabolic syndromeInheritance: AD Classification: STRONG Submitted by: Genomics England PanelApp
- neonatal diabetes mellitusInheritance: AD Classification: STRONG Submitted by: Genomics England PanelApp
- tetralogy of fallotInheritance: AD Classification: MODERATE Submitted by: Ambry Genetics
- familial atrial fibrillationInheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
- conotruncal heart malformationsInheritance: AR Classification: LIMITED Submitted by: Ambry Genetics
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ACMG classification
Our verdict: Likely_benign. The variant received -2 ACMG points.
Transcripts
RefSeq
Ensembl
Frequencies
GnomAD3 genomes Cov.: 32
GnomAD2 exomes AF: 0.00000462 AC: 1AN: 216346 AF XY: 0.00 show subpopulations
GnomAD4 exome AF: 0.00000974 AC: 14AN: 1437034Hom.: 0 Cov.: 31 AF XY: 0.00000560 AC XY: 4AN XY: 714050 show subpopulations
Age Distribution
GnomAD4 genome Cov.: 32
ClinVar
Submissions by phenotype
Monogenic diabetes Uncertain:1
ACMG Criteria:PP3 (4 predictors), BP4 (7 predictors), PM2 (absent in database) -
Pancreatic hypoplasia-diabetes-congenital heart disease syndrome Uncertain:1
Potent mutations in GATA6 gene are associated with neonatal diabetes, decreased insulin production due to pancreatic aplasia or hypoplasia. Also associated with isolated cardiac abnormalities in children, like atrial septal defects.However no sufficient evidence is found to ascertain the role of this particular variant rs924843423 yet. -
Atrioventricular septal defect 5 Uncertain:1
This variant is not present in population databases (ExAC no frequency). This variant has not been reported in the literature in individuals with GATA6-related conditions. ClinVar contains an entry for this variant (Variation ID: 549549). 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 glycine 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. This sequence change replaces serine with glycine at codon 58 of the GATA6 protein (p.Ser58Gly). The serine residue is weakly conserved and there is a small physicochemical difference between serine and glycine. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at