Variant rs61649746 details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Benign. Variant got -18 ACMG points: 0P and 18B. BP4_ModerateBP6_Very_StrongBA1

The NM_001478.5(B4GALNT1):c.1119G>A(p.Val373=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00328 in 1,614,100 control chromosomes in the GnomAD database, including 160 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.018 ( 81 hom., cov: 33)

Exomes 𝑓: 0.0017 ( 79 hom. )

Consequence

B4GALNT1
NM_001478.5 synonymous

Scores

Clinical Significance

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

Conservation

PhyloP100: 0.129

Variant links:

Genes affected

B4GALNT1 (HGNC:4117): (beta-1,4-N-acetyl-galactosaminyltransferase 1) GM2 and GD2 gangliosides are sialic acid-containing glycosphingolipids. GalNAc-T is the enzyme involved in the biosynthesis of G(M2) and G(D2) glycosphingolipids. GalNAc-T catalyzes the transfer of GalNAc into G(M3) and G(D3) by a beta-1,4 linkage, resulting in the synthesis of G(M2) and G(D2), respectively. Three transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Feb 2013]

B4GALNT1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -18 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.44).

BP6

Variant 12-57628146-C-T is Benign according to our data. Variant chr12-57628146-C-T is described in ClinVar as [Benign]. Clinvar id is 239025.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BA1

GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.0598 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
B4GALNT1	NM_001478.5 linkuse as main transcript	c.1119G>A	p.Val373=	synonymous_variant	9/11	ENST00000341156.9	NP_001469.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
B4GALNT1	ENST00000341156.9 linkuse as main transcript	c.1119G>A	p.Val373=	synonymous_variant	9/11	1	NM_001478.5	ENSP00000341562	P1	Q00973-1

Frequencies

GnomAD3 genomes

AF:

0.0180

AC:

2734

AN:

152268

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0619

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00837

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000414

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000103

Gnomad OTH

AF:

0.0134

GnomAD3 exomes

AF:

0.00467

AC:

1173

AN:

251032

Hom.:

AF XY:

0.00347

AC XY:

471

AN XY:

135754

show subpopulations

Gnomad AFR exome

AF:

0.0641

Gnomad AMR exome

AF:

0.00298

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000653

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000123

Gnomad OTH exome

AF:

0.00228

GnomAD4 exome

AF:

0.00175

AC:

2552

AN:

1461714

Hom.:

Cov.:

AF XY:

0.00152

AC XY:

1107

AN XY:

727182

show subpopulations

Gnomad4 AFR exome

AF:

0.0632

Gnomad4 AMR exome

AF:

0.00315

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000696

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000585

Gnomad4 OTH exome

AF:

0.00351

GnomAD4 genome

AF:

0.0180

AC:

2737

AN:

152386

Hom.:

Cov.:

AF XY:

0.0176

AC XY:

1310

AN XY:

74528

show subpopulations

Gnomad4 AFR

AF:

0.0618

Gnomad4 AMR

AF:

0.00836

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000414

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000103

Gnomad4 OTH

AF:

0.0132

Alfa

AF:

0.0114

Hom.:

Bravo

AF:

0.0206

Asia WGS

AF:

0.00202

AC:

AN:

3478

EpiCase

AF:

0.000109

EpiControl

AF:

0.000178

ClinVar

Significance: Benign

Submissions summary: Benign:4

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Spastic paraplegia

Benign:1

Benign, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Jan 29, 2024

- -

not specified

Benign:1

Benign, criteria provided, single submitter

clinical testing

GeneDx

Nov 06, 2016

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. -

not provided

Benign:1

Benign, criteria provided, single submitter

not provided

Breakthrough Genomics, Breakthrough Genomics

- -

B4GALNT1-related disorder

Benign:1

Benign, no assertion criteria provided

clinical testing

PreventionGenetics, part of Exact Sciences

Jan 24, 2020

This variant is classified as benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.44

CADD

Benign

DANN

Benign

0.91

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over