X-71537959-C-T
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Variant summary
Our verdict is Uncertain significance. Variant got 1 ACMG points: 1P and 0B. PP2
The NM_181672.3(OGT):c.349C>T(p.Arg117Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000546 in 1,098,040 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 1 hemizygotes in GnomAD. Variant has been reported in ClinVar as Uncertain significance (★★).
Frequency
Genomes: not found (cov: 23)
Exomes 𝑓: 0.0000055 ( 0 hom. 1 hem. )
Consequence
OGT
NM_181672.3 missense
NM_181672.3 missense
Scores
2
14
1
Clinical Significance
Conservation
PhyloP100: 2.84
Genes affected
OGT (HGNC:8127): (O-linked N-acetylglucosamine (GlcNAc) transferase) This gene encodes a glycosyltransferase that catalyzes the addition of a single N-acetylglucosamine in O-glycosidic linkage to serine or threonine residues. Since both phosphorylation and glycosylation compete for similar serine or threonine residues, the two processes may compete for sites, or they may alter the substrate specificity of nearby sites by steric or electrostatic effects. The protein contains multiple tetratricopeptide repeats that are required for optimal recognition of substrates. Alternatively spliced transcript variants encoding distinct isoforms have been found for this gene. [provided by RefSeq, Oct 2009]
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ACMG classification
Classification made for transcript
Verdict is Uncertain_significance. Variant got 1 ACMG points.
PP2
Missense variant in gene, where missense usually causes diseases (based on misZ statistic), OGT. . Gene score misZ: 5.6667 (greater than the threshold 3.09). The gene has 12 curated pathogenic missense variants (we use a threshold of 10). The gene has 3 curated benign missense variants. GenCC has associacion of the gene with intellectual disability, X-linked 106.
Transcripts
RefSeq
Ensembl
Frequencies
GnomAD3 genomes Cov.: 23
GnomAD3 genomes
Cov.:
23
GnomAD3 exomes AF: 0.00000545 AC: 1AN: 183425Hom.: 0 AF XY: 0.00 AC XY: 0AN XY: 67869
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GnomAD4 exome AF: 0.00000546 AC: 6AN: 1098040Hom.: 0 Cov.: 30 AF XY: 0.00000275 AC XY: 1AN XY: 363398
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GnomAD4 genome Cov.: 23
GnomAD4 genome
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23
ClinVar
Significance: Uncertain significance
Submissions summary: Uncertain:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link
Submissions by phenotype
Intellectual disability, X-linked 106 Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Genomic Research Center, Shahid Beheshti University of Medical Sciences | Apr 27, 2019 | - - |
not provided Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | GeneDx | Dec 18, 2019 | In silico analysis, which includes protein predictors and evolutionary conservation, supports a deleterious effect; Has not been previously published as pathogenic or benign to our knowledge - |
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
AlphaMissense
Uncertain
BayesDel_addAF
Uncertain
D
BayesDel_noAF
Uncertain
CADD
Pathogenic
DANN
Pathogenic
DEOGEN2
Uncertain
D;.;T
FATHMM_MKL
Uncertain
D
LIST_S2
Uncertain
D;D;D
M_CAP
Uncertain
D
MetaRNN
Uncertain
D;D;D
MetaSVM
Uncertain
D
MutationAssessor
Uncertain
M;.;.
PrimateAI
Pathogenic
D
PROVEAN
Uncertain
D;D;D
REVEL
Uncertain
Sift
Uncertain
D;D;D
Sift4G
Uncertain
D;D;D
Polyphen
D;D;.
Vest4
MutPred
Gain of catalytic residue at L118 (P = 0.0066);.;.;
MVP
MPC
ClinPred
D
GERP RS
RBP_binding_hub_radar
RBP_regulation_power_radar
Varity_R
gMVP
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