Variant 19-17808098-C-G details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The ENST00000318683.7(B3GNT3):c.291C>G(p.Asp97Glu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000342 in 1,461,676 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 30)

Exomes 𝑓: 0.0000034 ( 0 hom. )

Consequence

B3GNT3
ENST00000318683.7 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -2.10

Variant links:

Genes affected

B3GNT3 (HGNC:13528): (UDP-GlcNAc:betaGal beta-1,3-N-acetylglucosaminyltransferase 3) This gene encodes a member of the beta-1,3-N-acetylglucosaminyltransferase family. This enzyme is a type II transmembrane protein and contains a signal anchor that is not cleaved. It prefers the substrates of lacto-N-tetraose and lacto-N-neotetraose, and is involved in the biosynthesis of poly-N-acetyllactosamine chains and the biosynthesis of the backbone structure of dimeric sialyl Lewis a. It plays dominant roles in L-selectin ligand biosynthesis, lymphocyte homing and lymphocyte trafficking. [provided by RefSeq, Jul 2008]

B3GNT3 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.100432634).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein
B3GNT3	NM_014256.4 linkuse as main transcript	c.291C>G	p.Asp97Glu	missense_variant	2/3	ENST00000318683.7	NP_055071.2
B3GNT3	XM_011527626.3 linkuse as main transcript	c.291C>G	p.Asp97Glu	missense_variant	2/3		XP_011525928.1
B3GNT3	XM_047438042.1 linkuse as main transcript	c.291C>G	p.Asp97Glu	missense_variant	2/3		XP_047293998.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris
B3GNT3	ENST00000318683.7 linkuse as main transcript	c.291C>G	p.Asp97Glu	missense_variant	2/3	1	NM_014256.4	ENSP00000321874	P1
B3GNT3	ENST00000595387.1 linkuse as main transcript	c.291C>G	p.Asp97Glu	missense_variant	2/3	1		ENSP00000472638	P1
B3GNT3	ENST00000599265.5 linkuse as main transcript	c.291C>G	p.Asp97Glu	missense_variant	2/3	3		ENSP00000471733
B3GNT3	ENST00000600777.1 linkuse as main transcript	c.291C>G	p.Asp97Glu	missense_variant	2/2	3		ENSP00000468914

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.0000200

AC:

AN:

250442

Hom.:

AF XY:

0.0000221

AC XY:

AN XY:

135606

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000145

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:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000342

AC:

AN:

1461676

Hom.:

Cov.:

AF XY:

0.00000413

AC XY:

AN XY:

727134

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.000112

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:

0.00

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Jun 17, 2024

The c.291C>G (p.D97E) alteration is located in exon 2 (coding exon 1) of the B3GNT3 gene. This alteration results from a C to G substitution at nucleotide position 291, causing the aspartic acid (D) at amino acid position 97 to be replaced by a glutamic acid (E). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.22

BayesDel_addAF

Benign

-0.52

BayesDel_noAF

Benign

-0.73

CADD

Benign

1.5

DANN

Benign

0.96

DEOGEN2

Benign

0.024

T;T;T;T

Eigen

Benign

-0.96

Eigen_PC

Benign

-1.1

FATHMM_MKL

Benign

0.065

LIST_S2

Benign

0.65

T;.;T;T

M_CAP

Benign

0.0094

MetaRNN

Benign

0.10

T;T;T;T

MetaSVM

Benign

-1.1

MutationAssessor

Benign

0.99

.;L;.;L

MutationTaster

Benign

1.0

PrimateAI

Benign

0.42

PROVEAN

Benign

-2.3

.;N;.;.

REVEL

Benign

0.025

Sift

Benign

0.16

.;T;.;.

Sift4G

Benign

0.14

T;T;T;T

Polyphen

0.36

.;B;.;B

Vest4

0.023

MutPred

0.39

Gain of catalytic residue at D97 (P = 0.0879);Gain of catalytic residue at D97 (P = 0.0879);Gain of catalytic residue at D97 (P = 0.0879);Gain of catalytic residue at D97 (P = 0.0879);

MVP

0.37

MPC

0.66

ClinPred

0.098

GERP RS

-3.0

Varity_R

0.045

gMVP

0.49

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.

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