9-131523096-G-T

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The ENST00000402686.8(POMT1):​c.2168G>T​(p.Arg723Leu) variant causes a missense change. The variant allele was found at a frequency of 0.00000248 in 1,610,764 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R723Q) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 33)
Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

POMT1
ENST00000402686.8 missense

Scores

4
13
2

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 6.57
Variant links:
Genes affected
POMT1 (HGNC:9202): (protein O-mannosyltransferase 1) The protein encoded by this gene is an O-mannosyltransferase that requires interaction with the product of the POMT2 gene for enzymatic function. The encoded protein is found in the membrane of the endoplasmic reticulum. Defects in this gene are a cause of Walker-Warburg syndrome (WWS) and limb-girdle muscular dystrophy type 2K (LGMD2K). Several transcript variants encoding different isoforms have been found for this gene.[provided by RefSeq, Oct 2008]

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;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
POMT1NM_001077365.2 linkuse as main transcriptc.2168G>T p.Arg723Leu missense_variant 20/20 ENST00000402686.8 NP_001070833.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
POMT1ENST00000402686.8 linkuse as main transcriptc.2168G>T p.Arg723Leu missense_variant 20/201 NM_001077365.2 ENSP00000385797 P1Q9Y6A1-2

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152188
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000386
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000161
AC:
4
AN:
248426
Hom.:
0
AF XY:
0.0000149
AC XY:
2
AN XY:
134402
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000218
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:
0.00000137
AC:
2
AN:
1458458
Hom.:
0
Cov.:
34
AF XY:
0.00000276
AC XY:
2
AN XY:
725440
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000504
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
AF:
0.0000131
AC:
2
AN:
152306
Hom.:
0
Cov.:
33
AF XY:
0.00
AC XY:
0
AN XY:
74474
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000387
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.00000378
ExAC
AF:
0.00000824
AC:
1

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Uncertain
0.48
BayesDel_addAF
Uncertain
0.14
D
BayesDel_noAF
Pathogenic
0.26
CADD
Pathogenic
26
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.64
.;.;.;D;.;T
Eigen
Uncertain
0.47
Eigen_PC
Uncertain
0.44
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Uncertain
0.90
D;D;D;D;.;D
M_CAP
Pathogenic
0.33
D
MetaRNN
Uncertain
0.57
D;D;D;D;D;D
MetaSVM
Uncertain
0.57
D
MutationAssessor
Uncertain
2.4
.;.;.;M;.;.
MutationTaster
Benign
1.0
D;D;D;D;D;D;D;D
PrimateAI
Uncertain
0.57
T
PROVEAN
Uncertain
-3.4
D;D;D;D;D;D
REVEL
Pathogenic
0.67
Sift
Uncertain
0.021
D;D;D;D;D;D
Sift4G
Benign
0.063
T;T;T;T;T;D
Polyphen
0.98, 1.0
.;D;.;D;D;.
Vest4
0.67
MutPred
0.36
.;.;.;Loss of MoRF binding (P = 0.0059);.;.;
MVP
0.95
MPC
0.99
ClinPred
0.89
D
GERP RS
4.0
Varity_R
0.44
gMVP
0.69

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: rs144051476; hg19: chr9-134398483; API