X-30668107-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 3P and 1B. PM2PP2BP4

The NM_001205019.2(GK):​c.248C>T​(p.Ser83Phe) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000114 in 873,641 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 1 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 23)
Exomes 𝑓: 0.0000011 ( 0 hom. 1 hem. )

Consequence

GK
NM_001205019.2 missense

Scores

2
7
7

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.51
Variant links:
Genes affected
GK (HGNC:4289): (glycerol kinase) The protein encoded by this gene belongs to the FGGY kinase family. This protein is a key enzyme in the regulation of glycerol uptake and metabolism. It catalyzes the phosphorylation of glycerol by ATP, yielding ADP and glycerol-3-phosphate. Mutations in this gene are associated with glycerol kinase deficiency (GKD). Alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Mar 2011]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP2
Missense variant in gene, where missense usually causes diseases (based on misZ statistic), GK. . Gene score misZ 3.1858 (greater than the threshold 3.09). GenCC has associacion of gene with inborn glycerol kinase deficiency.
BP4
Computational evidence support a benign effect (MetaRNN=0.41140664).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
GKNM_001205019.2 linkuse as main transcriptc.248C>T p.Ser83Phe missense_variant 3/21 ENST00000427190.6

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
GKENST00000427190.6 linkuse as main transcriptc.248C>T p.Ser83Phe missense_variant 3/215 NM_001205019.2 P1P32189-3

Frequencies

GnomAD3 genomes
Cov.:
23
GnomAD3 exomes
AF:
0.00000548
AC:
1
AN:
182494
Hom.:
0
AF XY:
0.0000149
AC XY:
1
AN XY:
67226
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000365
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000114
AC:
1
AN:
873641
Hom.:
0
Cov.:
17
AF XY:
0.00000408
AC XY:
1
AN XY:
244923
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000286
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
23

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not provided Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingGeneDxApr 17, 2019Has not been previously published as pathogenic or benign to our knowledge -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.26
BayesDel_addAF
Benign
-0.090
T
BayesDel_noAF
Benign
-0.26
CADD
Pathogenic
27
DANN
Uncertain
1.0
FATHMM_MKL
Uncertain
0.96
D
LIST_S2
Pathogenic
0.98
D;D;D;D;D
M_CAP
Uncertain
0.21
D
MetaRNN
Benign
0.41
T;T;T;T;T
MetaSVM
Benign
-0.51
T
MutationAssessor
Pathogenic
3.0
M;M;M;M;.
MutationTaster
Benign
0.90
D;D;D;D;D
PrimateAI
Uncertain
0.73
T
PROVEAN
Uncertain
-3.7
D;D;.;D;D
REVEL
Benign
0.29
Sift
Uncertain
0.0070
D;D;.;D;D
Sift4G
Uncertain
0.0090
D;D;D;D;D
Polyphen
0.53
.;P;.;P;.
Vest4
0.35
MutPred
0.67
Loss of catalytic residue at S83 (P = 0.0519);Loss of catalytic residue at S83 (P = 0.0519);Loss of catalytic residue at S83 (P = 0.0519);Loss of catalytic residue at S83 (P = 0.0519);Loss of catalytic residue at S83 (P = 0.0519);
MVP
0.59
MPC
1.8
ClinPred
0.87
D
GERP RS
4.7
Varity_R
0.61
gMVP
0.69

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs1246343210; hg19: chrX-30686224; API