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GeneBe

3-43081420-C-T

Variant summary

Our verdict is Benign. Variant got -8 ACMG points: 2P and 10B. PM2BP4_StrongBP6BP7BS1

The NM_032806.6(POMGNT2):​c.12G>A​(p.Ser4=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000105 in 1,571,152 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.000079 ( 0 hom., cov: 33)
Exomes 𝑓: 0.00011 ( 0 hom. )

Consequence

POMGNT2
NM_032806.6 synonymous

Scores

2

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:2

Conservation

PhyloP100: -3.06
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 -8 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.89).
BP6
Variant 3-43081420-C-T is Benign according to our data. Variant chr3-43081420-C-T is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 436368.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=2, Uncertain_significance=1}.
BP7
Synonymous conserved (PhyloP=-3.06 with no splicing effect.
BS1
Variant frequency is greater than expected in population sas. gnomad4 allele frequency = 0.0000788 (12/152306) while in subpopulation SAS AF= 0.000829 (4/4828). AF 95% confidence interval is 0.000283. There are 0 homozygotes in gnomad4. There are 4 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
POMGNT2NM_032806.6 linkuse as main transcriptc.12G>A p.Ser4= synonymous_variant 2/2 ENST00000344697.3
POMGNT2XM_005265515.4 linkuse as main transcriptc.12G>A p.Ser4= synonymous_variant 3/3
POMGNT2XM_011534163.3 linkuse as main transcriptc.12G>A p.Ser4= synonymous_variant 3/3
POMGNT2XM_017007353.2 linkuse as main transcriptc.12G>A p.Ser4= synonymous_variant 4/4

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
POMGNT2ENST00000344697.3 linkuse as main transcriptc.12G>A p.Ser4= synonymous_variant 2/21 NM_032806.6 P1

Frequencies

GnomAD3 genomes
AF:
0.0000788
AC:
12
AN:
152188
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000482
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000828
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000882
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000176
AC:
36
AN:
204806
Hom.:
0
AF XY:
0.000190
AC XY:
21
AN XY:
110286
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000177
Gnomad SAS exome
AF:
0.00104
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000107
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000108
AC:
153
AN:
1418846
Hom.:
0
Cov.:
37
AF XY:
0.000127
AC XY:
89
AN XY:
701790
show subpopulations
Gnomad4 AFR exome
AF:
0.0000930
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.000153
Gnomad4 SAS exome
AF:
0.000672
Gnomad4 FIN exome
AF:
0.0000204
Gnomad4 NFE exome
AF:
0.0000778
Gnomad4 OTH exome
AF:
0.0000684
GnomAD4 genome
AF:
0.0000788
AC:
12
AN:
152306
Hom.:
0
Cov.:
33
AF XY:
0.0000537
AC XY:
4
AN XY:
74476
show subpopulations
Gnomad4 AFR
AF:
0.0000481
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000829
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000882
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000869
Asia WGS
AF:
0.000577
AC:
2
AN:
3478

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:1Benign:2
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingGenetic Services Laboratory, University of ChicagoAug 25, 2015- -
Muscular dystrophy-dystroglycanopathy (congenital with brain and eye anomalies), type a, 8 Benign:1
Likely benign, criteria provided, single submitterclinical testingInvitaeJan 05, 2024- -
not provided Benign:1
Likely benign, criteria provided, single submitterclinical testingCeGaT Center for Human Genetics TuebingenJul 01, 2022POMGNT2: BP4, BP7 -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.89
CADD
Benign
0.060
DANN
Benign
0.65
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.6

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: rs368531523; hg19: chr3-43122912; COSMIC: COSV60954421; API