rs104894005
Variant summary
Our verdict is Pathogenic. Variant got 11 ACMG points: 11P and 0B. PVS1PM2PP5
The NM_000162.5(GCK):c.835G>T(p.Glu279*) variant causes a stop gained change. The variant allele was found at a frequency of 0.00000137 in 1,458,306 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Pathogenic (no stars). Variant results in nonsense mediated mRNA decay.
Frequency
Genomes: not found (cov: 33)
Exomes 𝑓: 0.0000014 ( 0 hom. )
Consequence
GCK
NM_000162.5 stop_gained
NM_000162.5 stop_gained
Scores
4
2
1
Clinical Significance
Conservation
PhyloP100: 4.98
Genes affected
GCK (HGNC:4195): (glucokinase) This gene encodes a member of the hexokinase family of proteins. Hexokinases phosphorylate glucose to produce glucose-6-phosphate, the first step in most glucose metabolism pathways. In contrast to other forms of hexokinase, this enzyme is not inhibited by its product glucose-6-phosphate but remains active while glucose is abundant. The use of multiple promoters and alternative splicing of this gene result in distinct protein isoforms that exhibit tissue-specific expression in the pancreas and liver. In the pancreas, this enzyme plays a role in glucose-stimulated insulin secretion, while in the liver, this enzyme is important in glucose uptake and conversion to glycogen. Mutations in this gene that alter enzyme activity have been associated with multiple types of diabetes and hyperinsulinemic hypoglycemia. [provided by RefSeq, Aug 2017]
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ACMG classification
Classification made for transcript
Verdict is Pathogenic. Variant got 11 ACMG points.
PVS1
Loss of function variant, product undergoes nonsense mediated mRNA decay. LoF is a known mechanism of disease.
PM2
Very rare variant in population databases, with high coverage;
PP5
Variant 7-44147678-C-A is Pathogenic according to our data. Variant chr7-44147678-C-A is described in ClinVar as [Pathogenic]. Clinvar id is 16132.Status of the report is no_assertion_criteria_provided, 0 stars.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | Protein | UniProt |
---|---|---|---|---|---|---|---|---|
GCK | NM_000162.5 | c.835G>T | p.Glu279* | stop_gained | 7/10 | ENST00000403799.8 | NP_000153.1 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Protein | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|---|
GCK | ENST00000403799.8 | c.835G>T | p.Glu279* | stop_gained | 7/10 | 1 | NM_000162.5 | ENSP00000384247.3 |
Frequencies
GnomAD3 genomes Cov.: 33
GnomAD3 genomes
Cov.:
33
GnomAD3 exomes AF: 0.00000401 AC: 1AN: 249438Hom.: 0 AF XY: 0.00 AC XY: 0AN XY: 134942
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GnomAD4 exome AF: 0.00000137 AC: 2AN: 1458306Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0AN XY: 725030
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GnomAD4 genome Cov.: 33
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33
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ClinVar
Significance: Pathogenic
Submissions summary: Pathogenic:1
Revision: no assertion criteria provided
LINK: link
Submissions by phenotype
Maturity-onset diabetes of the young type 2 Pathogenic:1
Pathogenic, no assertion criteria provided | literature only | OMIM | May 30, 1992 | - - |
Computational scores
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Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Pathogenic
D
BayesDel_noAF
Pathogenic
CADD
Pathogenic
DANN
Uncertain
Eigen
Pathogenic
Eigen_PC
Pathogenic
FATHMM_MKL
Uncertain
D
Vest4
GERP RS
Splicing
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SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at