rs114039725

Variant summary

Our verdict is Benign. Variant got -13 ACMG points: 2P and 15B. PM2BP4_ModerateBP6_Very_StrongBP7BS1

The NM_152490.5(B3GALNT2):​c.276C>T​(p.Phe92Phe) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000108 in 1,613,774 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 Likely benign (★★).

Frequency

Genomes: 𝑓 0.00057 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000060 ( 0 hom. )

Consequence

B3GALNT2
NM_152490.5 synonymous

Scores

2

Clinical Significance

Likely benign criteria provided, multiple submitters, no conflicts B:3

Conservation

PhyloP100: 2.75
Variant links:
Genes affected
B3GALNT2 (HGNC:28596): (beta-1,3-N-acetylgalactosaminyltransferase 2) This gene encodes a member of the glycosyltransferase 31 family. The encoded protein synthesizes GalNAc:beta-1,3GlcNAc, a novel carbohydrate structure, on N- and O-glycans. Alternatively spliced transcript variants that encode different isoforms have been described. [provided by RefSeq, Mar 2013]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -13 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.36).
BP6
Variant 1-235489253-G-A is Benign according to our data. Variant chr1-235489253-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 390834.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=2.75 with no splicing effect.
BS1
Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.000572 (87/152210) while in subpopulation AFR AF= 0.00193 (80/41528). AF 95% confidence interval is 0.00159. There are 0 homozygotes in gnomad4. There are 47 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
B3GALNT2NM_152490.5 linkc.276C>T p.Phe92Phe synonymous_variant Exon 3 of 12 ENST00000366600.8 NP_689703.1 Q8NCR0-1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
B3GALNT2ENST00000366600.8 linkc.276C>T p.Phe92Phe synonymous_variant Exon 3 of 12 1 NM_152490.5 ENSP00000355559.3 Q8NCR0-1

Frequencies

GnomAD3 genomes
AF:
0.000572
AC:
87
AN:
152092
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00193
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000197
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000294
Gnomad OTH
AF:
0.000956
GnomAD3 exomes
AF:
0.000143
AC:
36
AN:
251174
Hom.:
0
AF XY:
0.000103
AC XY:
14
AN XY:
135738
show subpopulations
Gnomad AFR exome
AF:
0.00172
Gnomad AMR exome
AF:
0.000203
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:
0.00000880
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000595
AC:
87
AN:
1461564
Hom.:
0
Cov.:
32
AF XY:
0.0000468
AC XY:
34
AN XY:
727086
show subpopulations
Gnomad4 AFR exome
AF:
0.00212
Gnomad4 AMR exome
AF:
0.000157
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000270
Gnomad4 OTH exome
AF:
0.0000828
GnomAD4 genome
AF:
0.000572
AC:
87
AN:
152210
Hom.:
0
Cov.:
32
AF XY:
0.000632
AC XY:
47
AN XY:
74418
show subpopulations
Gnomad4 AFR
AF:
0.00193
Gnomad4 AMR
AF:
0.000196
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000294
Gnomad4 OTH
AF:
0.000946
Alfa
AF:
0.000146
Hom.:
0
Bravo
AF:
0.000771
Asia WGS
AF:
0.000866
AC:
3
AN:
3478

ClinVar

Significance: Likely benign
Submissions summary: Benign:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:2
Jan 05, 2016
Genetic Services Laboratory, University of Chicago
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Nov 17, 2016
GeneDx
Significance: Likely 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, 11 Benign:1
Nov 19, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.36
CADD
Benign
15
DANN
Benign
0.81

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.20
Details are displayed if max score is > 0.2
DS_AG_spliceai
0.20
Position offset: 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: rs114039725; hg19: chr1-235652558; API