rs760327

Positions:

• chr8-133490986-G-C

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP4_Strong BA1

The NM_173344.3(ST3GAL1):​c.-374+8149C>G variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.592 in 151,980 control chromosomes in the GnomAD database, including 26,958 homozygotes. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: 𝑓 0.59 (26958 hom., cov: 31)
• Consequence: ST3GAL1 NM_173344.3 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -2.16

Genes affected

ST3GAL1 (HGNC:10862): (ST3 beta-galactoside alpha-2,3-sialyltransferase 1) 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 but can be proteolytically processed to a soluble form. Correct glycosylation of the encoded protein may be critical to its sialyltransferase activity. This protein, which is a member of glycosyltransferase family 29, can use the same acceptor substrates as does sialyltransferase 4B. Two transcript variants encoding the same protein have been found for this gene. Other transcript variants may exist, but have not been fully characterized yet. [provided by RefSeq, Jul 2008]

ACMG classification

Verdict is Benign. Variant got -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.91).
• BA1: GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.717 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
ST3GAL1	NM_173344.3	c.-374+8149C>G		intron_variant		ENST00000522652.6

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
ST3GAL1	ENST00000522652.6	c.-374+8149C>G		intron_variant		1	NM_173344.3	P1

Frequencies

GnomAD3 genomes AF: 0.593 AC: 89994 AN: 151862 Hom.: 26943 Cov.: 31

Gnomad AFR AF: 0.550

Gnomad AMI AF: 0.581

Gnomad AMR AF: 0.597

Gnomad ASJ AF: 0.688

Gnomad EAS AF: 0.737

Gnomad SAS AF: 0.645

Gnomad FIN AF: 0.593

Gnomad MID AF: 0.671

Gnomad NFE AF: 0.597

Gnomad OTH AF: 0.597

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome AF: 0.592 AC: 90047 AN: 151980 Hom.: 26958 Cov.: 31 AF XY: 0.594 AC XY: 44123 AN XY: 74278

Gnomad4 AFR AF: 0.550

Gnomad4 AMR AF: 0.597

Gnomad4 ASJ AF: 0.688

Gnomad4 EAS AF: 0.737

Gnomad4 SAS AF: 0.645

Gnomad4 FIN AF: 0.593

Gnomad4 NFE AF: 0.597

Gnomad4 OTH AF: 0.602

Alfa AF: 0.595 Hom.: 3346

Bravo AF: 0.593

Asia WGS AF: 0.670 AC: 2331 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.91
CADD	Benign	0.053
DANN	Benign	0.62

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

Other links and lift over

dbSNP: rs760327; hg19: chr8-134503229;