rs3209079

Variant summary

Our verdict is Benign. Variant got -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BA1

The NM_013382.7(POMT2):ā€‹c.1911T>Gā€‹(p.Leu637=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.807 in 1,613,018 control chromosomes in the GnomAD database, including 526,421 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (ā˜…ā˜…).

Frequency

Genomes: š‘“ 0.82 ( 51439 hom., cov: 33)
Exomes š‘“: 0.81 ( 474982 hom. )

Consequence

POMT2
NM_013382.7 synonymous

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:10

Conservation

PhyloP100: -0.748
Variant links:
Genes affected
POMT2 (HGNC:19743): (protein O-mannosyltransferase 2) The protein encoded by this gene is an O-mannosyltransferase that requires interaction with the product of the POMT1 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).[provided by RefSeq, Oct 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -21 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.79).
BP6
Variant 14-77278850-A-C is Benign according to our data. Variant chr14-77278850-A-C is described in ClinVar as [Benign]. Clinvar id is 166901.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr14-77278850-A-C is described in Lovd as [Benign].
BP7
Synonymous conserved (PhyloP=-0.748 with no splicing effect.
BA1
GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.929 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
POMT2NM_013382.7 linkuse as main transcriptc.1911T>G p.Leu637= synonymous_variant 19/21 ENST00000261534.9 NP_037514.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
POMT2ENST00000261534.9 linkuse as main transcriptc.1911T>G p.Leu637= synonymous_variant 19/211 NM_013382.7 ENSP00000261534 P1Q9UKY4-1

Frequencies

GnomAD3 genomes
AF:
0.821
AC:
124889
AN:
152092
Hom.:
51399
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.838
Gnomad AMI
AF:
0.849
Gnomad AMR
AF:
0.761
Gnomad ASJ
AF:
0.831
Gnomad EAS
AF:
0.951
Gnomad SAS
AF:
0.785
Gnomad FIN
AF:
0.857
Gnomad MID
AF:
0.753
Gnomad NFE
AF:
0.811
Gnomad OTH
AF:
0.833
GnomAD3 exomes
AF:
0.815
AC:
203865
AN:
250248
Hom.:
83457
AF XY:
0.814
AC XY:
110302
AN XY:
135472
show subpopulations
Gnomad AFR exome
AF:
0.842
Gnomad AMR exome
AF:
0.737
Gnomad ASJ exome
AF:
0.819
Gnomad EAS exome
AF:
0.964
Gnomad SAS exome
AF:
0.775
Gnomad FIN exome
AF:
0.847
Gnomad NFE exome
AF:
0.814
Gnomad OTH exome
AF:
0.814
GnomAD4 exome
AF:
0.805
AC:
1176648
AN:
1460808
Hom.:
474982
Cov.:
72
AF XY:
0.805
AC XY:
584837
AN XY:
726742
show subpopulations
Gnomad4 AFR exome
AF:
0.844
Gnomad4 AMR exome
AF:
0.747
Gnomad4 ASJ exome
AF:
0.823
Gnomad4 EAS exome
AF:
0.967
Gnomad4 SAS exome
AF:
0.772
Gnomad4 FIN exome
AF:
0.845
Gnomad4 NFE exome
AF:
0.801
Gnomad4 OTH exome
AF:
0.812
GnomAD4 genome
AF:
0.821
AC:
124983
AN:
152210
Hom.:
51439
Cov.:
33
AF XY:
0.823
AC XY:
61244
AN XY:
74428
show subpopulations
Gnomad4 AFR
AF:
0.838
Gnomad4 AMR
AF:
0.760
Gnomad4 ASJ
AF:
0.831
Gnomad4 EAS
AF:
0.951
Gnomad4 SAS
AF:
0.785
Gnomad4 FIN
AF:
0.857
Gnomad4 NFE
AF:
0.811
Gnomad4 OTH
AF:
0.836
Alfa
AF:
0.809
Hom.:
31665
Bravo
AF:
0.816
Asia WGS
AF:
0.874
AC:
3042
AN:
3478
EpiCase
AF:
0.809
EpiControl
AF:
0.811

ClinVar

Significance: Benign
Submissions summary: Benign:10
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:5
Benign, criteria provided, single submitterclinical testingLaboratory for Molecular Medicine, Mass General Brigham Personalized MedicineNov 24, 2014Leu637Leu in exon 19 of POMT2: This variant is not expected to have clinical sig nificance because it does not alter an amino acid residue and is not located wit hin the splice consensus sequence. It has been identified in 19.0% (1637/8600) o f European American chromosomes from a broad population by the NHLBI Exome Seque ncing Project (http://evs.gs.washington.edu/EVS; dbSNP rs3209079). -
Benign, criteria provided, single submitterclinical testingEurofins Ntd Llc (ga)Jun 05, 2013- -
Benign, no assertion criteria providedclinical testingClinical Genetics DNA and cytogenetics Diagnostics Lab, Erasmus MC, Erasmus Medical Center-- -
Benign, no assertion criteria providedclinical testingClinical Genetics, Academic Medical Center-- -
Benign, no assertion criteria providedclinical testingDiagnostic Laboratory, Department of Genetics, University Medical Center Groningen-- -
Muscular dystrophy-dystroglycanopathy (congenital with brain and eye anomalies), type A2;C3150416:Muscular dystrophy-dystroglycanopathy (congenital with intellectual disability), type B2;C3150418:Autosomal recessive limb-girdle muscular dystrophy type 2N Benign:1
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpFeb 01, 2024- -
Muscular dystrophy-dystroglycanopathy (congenital with intellectual disability), type B2 Benign:1
Benign, criteria provided, single submitterclinical testingGenome-Nilou LabOct 25, 2021- -
Autosomal recessive limb-girdle muscular dystrophy type 2N Benign:1
Benign, criteria provided, single submitterclinical testingGenome-Nilou LabOct 25, 2021- -
not provided Benign:1
Benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -
Muscular dystrophy-dystroglycanopathy (congenital with brain and eye anomalies), type A2 Benign:1
Benign, criteria provided, single submitterclinical testingGenome-Nilou LabOct 25, 2021- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.79
CADD
Benign
5.7
DANN
Benign
0.55
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7

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: rs3209079; hg19: chr14-77745193; COSMIC: COSV55071450; COSMIC: COSV55071450; API