chr2-85863413-C-T

Position:

chr2-85863413-C-T

Variant summary

Our verdict is Benign. Variant got -7 ACMG points: 2P and 9B. PM2BP4_StrongBP6BS1

The NM_003896.4(ST3GAL5):c.155G>A(p.Arg52Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000177 in 1,614,160 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.0010 ( 1 hom., cov: 32)

Exomes 𝑓: 0.000090 ( 0 hom. )

Consequence

ST3GAL5
NM_003896.4 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:3

Conservation

PhyloP100: -0.116

Variant links:

Genes affected

ST3GAL5 (HGNC:10872): (ST3 beta-galactoside alpha-2,3-sialyltransferase 5) Ganglioside GM3 is known to participate in the induction of cell differentiation, modulation of cell proliferation, maintenance of fibroblast morphology, signal transduction, and integrin-mediated cell adhesion. The protein encoded by this gene is a type II membrane protein which catalyzes the formation of GM3 using lactosylceramide as the substrate. The encoded protein is a member of glycosyltransferase family 29 and may be localized to the Golgi apparatus. Mutation in this gene has been associated with Amish infantile epilepsy syndrome. Transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2008]

ST3GAL5 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -7 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.006441742).

BP6

Variant 2-85863413-C-T is Benign according to our data. Variant chr2-85863413-C-T is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 464397.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=2, Uncertain_significance=1}.

BS1

Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00101 (154/152270) while in subpopulation AFR AF= 0.00289 (120/41534). AF 95% confidence interval is 0.00247. There are 1 homozygotes in gnomad4. There are 77 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
ST3GAL5	NM_003896.4 linkuse as main transcript	c.155G>A	p.Arg52Gln	missense_variant	2/7	ENST00000638572.2	NP_003887.3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
ST3GAL5	ENST00000638572.2 linkuse as main transcript	c.155G>A	p.Arg52Gln	missense_variant	2/7	1	NM_003896.4	ENSP00000491316	A1	Q9UNP4-1

Frequencies

GnomAD3 genomes

AF:

0.00101

AC:

154

AN:

152152

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00290

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00216

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:

0.00

Gnomad OTH

AF:

0.000479

GnomAD3 exomes

AF:

0.000195

AC:

AN:

251476

Hom.:

AF XY:

0.000162

AC XY:

AN XY:

135914

show subpopulations

Gnomad AFR exome

AF:

0.00228

Gnomad AMR exome

AF:

0.000202

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:

0.0000176

Gnomad OTH exome

AF:

0.000489

GnomAD4 exome

AF:

0.0000903

AC:

132

AN:

1461890

Hom.:

Cov.:

AF XY:

0.0000701

AC XY:

AN XY:

727246

show subpopulations

Gnomad4 AFR exome

AF:

0.00281

Gnomad4 AMR exome

AF:

0.000358

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000252

Gnomad4 SAS exome

AF:

0.0000348

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000360

Gnomad4 OTH exome

AF:

0.000215

GnomAD4 genome

AF:

0.00101

AC:

154

AN:

152270

Hom.:

Cov.:

AF XY:

0.00103

AC XY:

AN XY:

74458

show subpopulations

Gnomad4 AFR

AF:

0.00289

Gnomad4 AMR

AF:

0.00216

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.000474

Alfa

AF:

0.000439

Hom.:

Bravo

AF:

0.00142

ESP6500AA

AF:

0.00295

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.000231

AC:

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:1Benign:3

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not provided

Uncertain:1Benign:1

Uncertain significance, criteria provided, single submitter	clinical testing	Eurofins Ntd Llc (ga)	Dec 27, 2016	- -
Likely benign, criteria provided, single submitter	clinical testing	Athena Diagnostics	Nov 26, 2018	- -

GM3 synthase deficiency

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Jan 31, 2024

- -

ST3GAL5-related disorder

Benign:1

Likely benign, no assertion criteria provided

clinical testing

PreventionGenetics, part of Exact Sciences

Jun 06, 2023

This variant is classified as likely 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

AlphaMissense

Benign

0.090

BayesDel_addAF

Benign

-0.53

BayesDel_noAF

Benign

-0.54

CADD

Benign

DANN

Uncertain

0.98

DEOGEN2

Benign

0.21

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

Eigen

Benign

-0.65

Eigen_PC

Benign

-0.58

FATHMM_MKL

Benign

0.045

LIST_S2

Benign

0.83

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

M_CAP

Benign

0.0092

MetaRNN

Benign

0.0064

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

MetaSVM

Benign

-1.1

MutationAssessor

Benign

0.66

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

MutationTaster

Benign

1.0

N;N;N;N

PrimateAI

Benign

0.26

PROVEAN

Benign

0.040

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

REVEL

Benign

0.032

Sift

Benign

0.18

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

Sift4G

Benign

0.25

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

Polyphen

0.0070

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

Vest4

0.14, 0.15, 0.14

MVP

0.067

MPC

0.35

ClinPred

0.0057

GERP RS

1.4

Varity_R

0.026

gMVP

0.15

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