rs34083889

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_032806.6(POMGNT2):​c.1385G>T​(p.Arg462Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00234 in 1,613,812 control chromosomes in the GnomAD database, including 64 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R462W) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.013 ( 33 hom., cov: 33)
Exomes 𝑓: 0.0013 ( 31 hom. )

Consequence

POMGNT2
NM_032806.6 missense

Scores

10
8

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:5

Conservation

PhyloP100: 1.74
Variant links:
Genes affected
POMGNT2 (HGNC:25902): (protein O-linked mannose N-acetylglucosaminyltransferase 2 (beta 1,4-)) This gene encodes a protein with glycosyltransferase activity although its function is not currently known. [provided by RefSeq, Sep 2012]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.004484147).
BP6
Variant 3-43080047-C-A is Benign according to our data. Variant chr3-43080047-C-A is described in ClinVar as [Likely_benign]. Clinvar id is 377356.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BS1
Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.0127 (1930/152304) while in subpopulation AFR AF= 0.0438 (1821/41550). AF 95% confidence interval is 0.0422. There are 33 homozygotes in gnomad4. There are 912 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck.
BS2
High Homozygotes in GnomAd4 at 33 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
POMGNT2NM_032806.6 linkc.1385G>T p.Arg462Leu missense_variant Exon 2 of 2 ENST00000344697.3 NP_116195.2 Q8NAT1A0A024R2P4
POMGNT2XM_005265515.4 linkc.1385G>T p.Arg462Leu missense_variant Exon 3 of 3 XP_005265572.1 Q8NAT1A0A024R2P4
POMGNT2XM_011534163.3 linkc.1385G>T p.Arg462Leu missense_variant Exon 3 of 3 XP_011532465.1 Q8NAT1A0A024R2P4
POMGNT2XM_017007353.2 linkc.1385G>T p.Arg462Leu missense_variant Exon 4 of 4 XP_016862842.1 Q8NAT1A0A024R2P4

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
POMGNT2ENST00000344697.3 linkc.1385G>T p.Arg462Leu missense_variant Exon 2 of 2 1 NM_032806.6 ENSP00000344125.2 Q8NAT1

Frequencies

GnomAD3 genomes
AF:
0.0127
AC:
1930
AN:
152188
Hom.:
33
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0440
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00510
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00633
Gnomad NFE
AF:
0.000132
Gnomad OTH
AF:
0.00908
GnomAD3 exomes
AF:
0.00337
AC:
846
AN:
250758
Hom.:
12
AF XY:
0.00258
AC XY:
350
AN XY:
135606
show subpopulations
Gnomad AFR exome
AF:
0.0437
Gnomad AMR exome
AF:
0.00330
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:
0.0000883
Gnomad OTH exome
AF:
0.00262
GnomAD4 exome
AF:
0.00127
AC:
1854
AN:
1461508
Hom.:
31
Cov.:
29
AF XY:
0.00109
AC XY:
792
AN XY:
727076
show subpopulations
Gnomad4 AFR exome
AF:
0.0441
Gnomad4 AMR exome
AF:
0.00367
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000812
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000378
Gnomad4 OTH exome
AF:
0.00252
GnomAD4 genome
AF:
0.0127
AC:
1930
AN:
152304
Hom.:
33
Cov.:
33
AF XY:
0.0122
AC XY:
912
AN XY:
74468
show subpopulations
Gnomad4 AFR
AF:
0.0438
Gnomad4 AMR
AF:
0.00509
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000207
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000132
Gnomad4 OTH
AF:
0.00899
Alfa
AF:
0.00127
Hom.:
3
Bravo
AF:
0.0147
TwinsUK
AF:
0.000270
AC:
1
ALSPAC
AF:
0.00
AC:
0
ESP6500AA
AF:
0.0422
AC:
186
ESP6500EA
AF:
0.000116
AC:
1
ExAC
AF:
0.00429
AC:
521
Asia WGS
AF:
0.00173
AC:
6
AN:
3478
EpiCase
AF:
0.000109
EpiControl
AF:
0.0000593

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:5
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:2
Jan 13, 2017
Center for Pediatric Genomic Medicine, Children's Mercy Hospital and Clinics
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

-
Breakthrough Genomics, Breakthrough Genomics
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: not provided

- -

not specified Benign:1
Aug 10, 2016
GeneDx
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -

Muscular dystrophy-dystroglycanopathy (congenital with brain and eye anomalies), type a, 8 Benign:1
Feb 02, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Muscular dystrophy-dystroglycanopathy (congenital with brain and eye anomalies), type a, 8;C4748320:Muscular dystrophy-dystroglycanopathy (limb-girdle), type C, 8 Benign:1
Aug 17, 2021
Fulgent Genetics, Fulgent Genetics
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.20
BayesDel_addAF
Benign
-0.38
T
BayesDel_noAF
Benign
-0.29
CADD
Benign
21
DANN
Uncertain
1.0
DEOGEN2
Benign
0.074
T;T
Eigen
Uncertain
0.30
Eigen_PC
Uncertain
0.38
FATHMM_MKL
Uncertain
0.96
D
LIST_S2
Uncertain
0.86
.;D
MetaRNN
Benign
0.0045
T;T
MetaSVM
Benign
-0.76
T
MutationAssessor
Uncertain
2.6
M;M
PrimateAI
Benign
0.31
T
PROVEAN
Uncertain
-2.5
D;D
REVEL
Uncertain
0.29
Sift
Uncertain
0.0080
D;D
Sift4G
Uncertain
0.046
D;D
Polyphen
0.65
P;P
Vest4
0.62
MVP
0.82
MPC
0.42
ClinPred
0.013
T
GERP RS
5.5
Varity_R
0.20
gMVP
0.78

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: rs34083889; hg19: chr3-43121539; API