1-46189268-T-G

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_001243766.2(POMGNT1):​c.1959A>C​(p.Arg653Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 12/18 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another nucleotide change resulting in the same amino acid substitution has been previously reported as Uncertain significance in ClinVar.

Frequency

Genomes: not found (cov: 32)

Consequence

POMGNT1
NM_001243766.2 missense

Scores

3
13

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 0.0800
Variant links:
Genes affected
POMGNT1 (HGNC:19139): (protein O-linked mannose N-acetylglucosaminyltransferase 1 (beta 1,2-)) This gene encodes a type II transmembrane protein that resides in the Golgi apparatus. It participates in O-mannosyl glycosylation and is specific for alpha linked terminal mannose. Mutations in this gene may be associated with muscle-eye-brain disease and several congenital muscular dystrophies. Alternatively spliced transcript variants that encode different protein isoforms have been described. [provided by RefSeq, Feb 2014]
TSPAN1 (HGNC:20657): (tetraspanin 1) The protein encoded by this gene is a member of the transmembrane 4 superfamily, also known as the tetraspanin family. Most of these members are cell-surface proteins that are characterized by the presence of four hydrophobic domains. The proteins mediate signal transduction events that play a role in the regulation of cell development, activation, growth and motility. [provided by RefSeq, Jul 2008]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.12248814).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
POMGNT1NM_017739.4 linkc.*2A>C 3_prime_UTR_variant Exon 22 of 22 ENST00000371984.8 NP_060209.4 Q8WZA1-1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
POMGNT1ENST00000371984 linkc.*2A>C 3_prime_UTR_variant Exon 22 of 22 1 NM_017739.4 ENSP00000361052.3 Q8WZA1-1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
Cov.:
30
GnomAD4 genome
Cov.:
32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Benign
-0.27
T
BayesDel_noAF
Benign
-0.62
CADD
Benign
16
DANN
Uncertain
0.99
Eigen
Benign
-0.29
Eigen_PC
Benign
-0.17
FATHMM_MKL
Uncertain
0.76
D
LIST_S2
Benign
0.45
T
M_CAP
Benign
0.021
T
MetaRNN
Benign
0.12
T
MetaSVM
Benign
-1.1
T
PrimateAI
Benign
0.41
T
PROVEAN
Benign
-0.66
N
REVEL
Benign
0.033
Sift
Benign
0.042
D
Sift4G
Uncertain
0.042
D
Vest4
0.32
MutPred
0.15
Gain of glycosylation at R653 (P = 0.0064);
MVP
0.39
MPC
0.28
ClinPred
0.96
D
GERP RS
2.3
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.0
gMVP
0.62

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.0
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: rs1188540095; hg19: chr1-46654940; API