rs145738225

Variant names:

Variant summary

Our verdict is Benign. The variant received -9 ACMG points: 0P and 9B. BP4_StrongBP6BS1

The NM_003896.4(ST3GAL5):c.1036G>A(p.Val346Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000126 in 1,614,006 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 16/22 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 0.00030 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00011 ( 1 hom. )

Consequence

ST3GAL5
NM_003896.4 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:2

Conservation

PhyloP100: 2.63

Publications

3 publications found

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 Gene-Disease associations (from GenCC):

GM3 synthase deficiency
Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: PanelApp Australia, Labcorp Genetics (formerly Invitae), ClinGen, G2P

ST3GAL5 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -9 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.010082662).

BP6

Variant 2-85840365-C-T is Benign according to our data. Variant chr2-85840365-C-T is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 337334.

BS1

Variant frequency is greater than expected in population eas. GnomAd4 allele frequency = 0.000296 (45/152172) while in subpopulation EAS AF = 0.0027 (14/5182). AF 95% confidence interval is 0.00163. There are 0 homozygotes in GnomAd4. There are 24 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_003896.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
ST3GAL5	NM_003896.4	MANE Select	c.1036G>A	p.Val346Ile	missense	Exon 7 of 7	NP_003887.3
ST3GAL5	NM_001042437.2		c.967G>A	p.Val323Ile	missense	Exon 7 of 7	NP_001035902.1	Q9UNP4-3
ST3GAL5	NM_001354227.2		c.952G>A	p.Val318Ile	missense	Exon 8 of 8	NP_001341156.1	A0A0S2Z4S6

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
ST3GAL5	ENST00000638572.2	TSL:1 MANE Select	c.1036G>A	p.Val346Ile	missense	Exon 7 of 7	ENSP00000491316.1	Q9UNP4-1
ST3GAL5	ENST00000393808.8	TSL:1	c.967G>A	p.Val323Ile	missense	Exon 7 of 7	ENSP00000377397.3	Q9UNP4-3
ST3GAL5	ENST00000393805.6	TSL:1	c.952G>A	p.Val318Ile	missense	Exon 7 of 7	ENSP00000377394.1	Q9UNP4-2

Frequencies

GnomAD3 genomes

AF:

0.000296

AC:

AN:

152054

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000556

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000131

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00250

Gnomad SAS

AF:

0.000830

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000294

Gnomad OTH

AF:

0.000478

GnomAD2 exomes

AF:

0.000330

AC:

AN:

251308

AF XY:

0.000309

show subpopulations

Gnomad AFR exome

AF:

0.000554

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00337

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000176

Gnomad OTH exome

AF:

0.000326

GnomAD4 exome

AF:

0.000108

AC:

158

AN:

1461834

Hom.:

Cov.:

AF XY:

0.000105

AC XY:

AN XY:

727206

show subpopulations

African (AFR)

AF:

0.000508

AC:

AN:

33472

American (AMR)

AF:

0.00

AC:

AN:

44716

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26134

East Asian (EAS)

AF:

0.00169

AC:

AN:

39700

South Asian (SAS)

AF:

0.000348

AC:

AN:

86244

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53420

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.00000899

AC:

AN:

1111984

Other (OTH)

AF:

0.000563

AC:

AN:

60396

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.493

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.000296

AC:

AN:

152172

Hom.:

Cov.:

AF XY:

0.000323

AC XY:

AN XY:

74394

show subpopulations

African (AFR)

AF:

0.000530

AC:

AN:

41520

American (AMR)

AF:

0.000131

AC:

AN:

15284

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3468

East Asian (EAS)

AF:

0.00270

AC:

AN:

5182

South Asian (SAS)

AF:

0.000830

AC:

AN:

4818

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10582

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.0000294

AC:

AN:

68000

Other (OTH)

AF:

0.000473

AC:

AN:

2112

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.501

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.000176

Hom.:

Bravo

AF:

0.000242

ESP6500AA

AF:

0.000227

AC:

ESP6500EA

AF:

0.000116

AC:

ExAC

AF:

0.000305

AC:

Asia WGS

AF:

0.00577

AC:

AN:

3478

ClinVar

ClinVar submissions

Significance:Conflicting classifications of pathogenicity

Revision:criteria provided, conflicting classifications

View on ClinVar

Pathogenic

VUS

Benign

Condition

GM3 synthase deficiency (2)

not provided (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.077

BayesDel_addAF

Benign

-0.53

BayesDel_noAF

Benign

-0.54

CADD

Benign

(source)

DANN

Benign

0.71

DEOGEN2

Benign

0.18

Eigen

Benign

-0.60

Eigen_PC

Benign

-0.47

FATHMM_MKL

Uncertain

0.80

LIST_S2

Benign

0.84

M_CAP

Benign

0.0085

MetaRNN

Benign

0.010

MetaSVM

Benign

-1.1

MutationAssessor

Benign

0.71

PhyloP100

2.6

PrimateAI

Benign

0.25

PROVEAN

Benign

0.080

REVEL

Benign

0.067

Sift

Benign

0.44

Sift4G

Benign

0.84

Polyphen

0.13

Vest4

0.20

MVP

0.030

MPC

0.29

ClinPred

0.013

GERP RS

4.9

Varity_R

0.10

gMVP

0.40

Mutation Taster

=91/9

polymorphism

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over