1-46196937-A-C

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The NM_017739.4(POMGNT1):​c.235+33T>G variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0242 in 1,614,094 control chromosomes in the GnomAD database, including 808 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.041 ( 203 hom., cov: 33)
Exomes 𝑓: 0.022 ( 605 hom. )

Consequence

POMGNT1
NM_017739.4 intron

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:4

Conservation

PhyloP100: 0.318
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]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.9).
BP6
Variant 1-46196937-A-C is Benign according to our data. Variant chr1-46196937-A-C is described in ClinVar as [Benign]. Clinvar id is 260873.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr1-46196937-A-C is described in Lovd as [Benign].
BA1
GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.0831 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
POMGNT1NM_017739.4 linkuse as main transcriptc.235+33T>G intron_variant ENST00000371984.8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
POMGNT1ENST00000371984.8 linkuse as main transcriptc.235+33T>G intron_variant 1 NM_017739.4 P1Q8WZA1-1

Frequencies

GnomAD3 genomes
AF:
0.0409
AC:
6228
AN:
152108
Hom.:
203
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0856
Gnomad AMI
AF:
0.00439
Gnomad AMR
AF:
0.0213
Gnomad ASJ
AF:
0.0309
Gnomad EAS
AF:
0.00135
Gnomad SAS
AF:
0.0441
Gnomad FIN
AF:
0.0672
Gnomad MID
AF:
0.0222
Gnomad NFE
AF:
0.0182
Gnomad OTH
AF:
0.0335
GnomAD3 exomes
AF:
0.0291
AC:
7319
AN:
251488
Hom.:
181
AF XY:
0.0292
AC XY:
3965
AN XY:
135918
show subpopulations
Gnomad AFR exome
AF:
0.0882
Gnomad AMR exome
AF:
0.0128
Gnomad ASJ exome
AF:
0.0281
Gnomad EAS exome
AF:
0.000815
Gnomad SAS exome
AF:
0.0434
Gnomad FIN exome
AF:
0.0646
Gnomad NFE exome
AF:
0.0198
Gnomad OTH exome
AF:
0.0264
GnomAD4 exome
AF:
0.0225
AC:
32831
AN:
1461868
Hom.:
605
Cov.:
33
AF XY:
0.0231
AC XY:
16763
AN XY:
727242
show subpopulations
Gnomad4 AFR exome
AF:
0.0950
Gnomad4 AMR exome
AF:
0.0135
Gnomad4 ASJ exome
AF:
0.0297
Gnomad4 EAS exome
AF:
0.000554
Gnomad4 SAS exome
AF:
0.0440
Gnomad4 FIN exome
AF:
0.0611
Gnomad4 NFE exome
AF:
0.0175
Gnomad4 OTH exome
AF:
0.0264
GnomAD4 genome
AF:
0.0409
AC:
6232
AN:
152226
Hom.:
203
Cov.:
33
AF XY:
0.0422
AC XY:
3143
AN XY:
74436
show subpopulations
Gnomad4 AFR
AF:
0.0855
Gnomad4 AMR
AF:
0.0213
Gnomad4 ASJ
AF:
0.0309
Gnomad4 EAS
AF:
0.00135
Gnomad4 SAS
AF:
0.0444
Gnomad4 FIN
AF:
0.0672
Gnomad4 NFE
AF:
0.0182
Gnomad4 OTH
AF:
0.0331
Alfa
AF:
0.0298
Hom.:
14
Bravo
AF:
0.0393
Asia WGS
AF:
0.0280
AC:
96
AN:
3478

ClinVar

Significance: Benign
Submissions summary: Benign:4
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:1
Benign, criteria provided, single submitterclinical testingPreventionGenetics, part of Exact Sciences-- -
Retinitis pigmentosa 76 Benign:1
Benign, criteria provided, single submitterclinical testingGenome-Nilou LabJul 01, 2021- -
not provided Benign:1
Benign, criteria provided, single submitterclinical testingGeneDxJun 28, 2018- -
Muscular dystrophy-dystroglycanopathy (congenital with brain and eye anomalies), type A3 Benign:1
Benign, criteria provided, single submitterclinical testingGenome-Nilou LabJul 01, 2021- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.90
CADD
Benign
2.2
DANN
Benign
0.43
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1

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: rs41309197; hg19: chr1-46662609; API