chr1-43930168-C-T

Position:

chr1-43930168-C-T

Variant summary

Our verdict is Benign. Variant got -10 ACMG points: 2P and 12B. PM2BP4_StrongBP6_Very_Strong

The NM_001350619.2(ST3GAL3):c.1316C>T(p.Ser439Phe) variant causes a missense change. The variant allele was found at a frequency of 0.000149 in 1,614,184 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 0.00016 ( 0 hom., cov: 33)

Exomes 𝑓: 0.00015 ( 0 hom. )

Consequence

ST3GAL3
NM_001350619.2 missense

Scores

Clinical Significance

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

Conservation

PhyloP100: 4.63

Variant links:

Genes affected

ST3GAL3 (HGNC:10866): (ST3 beta-galactoside alpha-2,3-sialyltransferase 3) The protein encoded by this gene is a type II membrane protein that catalyzes the transfer of sialic acid from CMP-sialic acid to galactose-containing substrates. The encoded protein is normally found in the Golgi apparatus but can be proteolytically processed to a soluble form. This protein is a member of glycosyltransferase family 29. Mutations in this gene have been associated with a form of autosomal recessive nonsymdromic cognitive disability as well as infantile epileptic encephalopathy. Multiple transcript variants encoding several different isoforms have been found for this gene. [provided by RefSeq, Jul 2017]

ST3GAL3 links:

ENSG00000284989 (HGNC:):

ENSG00000284989 links:

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -10 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.016622573).

BP6

Variant 1-43930168-C-T is Benign according to our data. Variant chr1-43930168-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 461326.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
ST3GAL3	NM_006279.5 linkuse as main transcript	c.1075C>T	p.Leu359Leu	synonymous_variant	12/12	ENST00000347631.8	NP_006270.1	Q11203-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	UniProt
ST3GAL3	ENST00000347631.8 linkuse as main transcript	c.1075C>T	p.Leu359Leu	synonymous_variant	12/12	5	NM_006279.5	ENSP00000317192.6	Q11203-1
ENSG00000284989	ENST00000645057.1 linkuse as main transcript	n.*2397C>T		non_coding_transcript_exon_variant	26/26			ENSP00000494063.1	A0A2R8Y4U1
ENSG00000284989	ENST00000645057.1 linkuse as main transcript	n.*2397C>T		3_prime_UTR_variant	26/26			ENSP00000494063.1	A0A2R8Y4U1

Frequencies

GnomAD3 genomes

AF:

0.000164

AC:

AN:

152238

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00548

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000588

Gnomad OTH

AF:

0.000955

GnomAD3 exomes

AF:

0.000274

AC:

AN:

251458

Hom.:

AF XY:

0.000250

AC XY:

AN XY:

135908

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00526

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000653

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000105

Gnomad OTH exome

AF:

0.000326

GnomAD4 exome

AF:

0.000148

AC:

216

AN:

1461828

Hom.:

Cov.:

AF XY:

0.000149

AC XY:

108

AN XY:

727218

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00562

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000232

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000414

Gnomad4 OTH exome

AF:

0.000348

GnomAD4 genome

AF:

0.000158

AC:

AN:

152356

Hom.:

Cov.:

AF XY:

0.000134

AC XY:

AN XY:

74508

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00548

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000588

Gnomad4 OTH

AF:

0.000473

Alfa

AF:

0.000721

Hom.:

Bravo

AF:

0.000170

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000349

AC:

ExAC

AF:

0.000222

AC:

Asia WGS

AF:

0.000577

AC:

AN:

3478

EpiCase

AF:

0.00

EpiControl

AF:

0.000119

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:3

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Inborn genetic diseases

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Ambry Genetics

Aug 05, 2023

This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Early infantile epileptic encephalopathy with suppression bursts

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Jan 25, 2024

- -

not provided

Benign:1

Benign, criteria provided, single submitter

clinical testing

Athena Diagnostics

Jul 01, 2019

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_addAF

Uncertain

0.049

BayesDel_noAF

Uncertain

0.030

CADD

Benign

DANN

Uncertain

1.0

Eigen

Benign

-0.020

Eigen_PC

Benign

0.087

FATHMM_MKL

Uncertain

0.83

LIST_S2

Benign

0.57

T;T;T;T;T;T;T;.

M_CAP

Uncertain

0.19

MetaRNN

Benign

0.017

T;T;T;T;T;T;T;T

MetaSVM

Benign

-0.37

PROVEAN

Benign

-0.60

N;.;.;.;.;N;N;N

REVEL

Uncertain

0.33

Sift

Pathogenic

0.0

D;.;.;.;.;D;D;D

Sift4G

Benign

0.071

T;.;.;.;.;T;D;T

Polyphen

0.060

.;.;.;.;.;B;B;.

Vest4

0.11

MVP

0.082

ClinPred

0.093

GERP RS

3.6

gMVP

0.055

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