8-133507373-A-C

Variant names:

• chr8-133507373-A-C
• rs2102861
• NM_173344.3:c.-428-8184T>G

Variant summary

Our verdict is Benign. The variant received -12 ACMG points: 0P and 12B. BP4_Strong BA1

The NM_173344.3(ST3GAL1):​c.-428-8184T>G variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.551 in 152,230 control chromosomes in the GnomAD database, including 23,674 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 0.55 (23674 hom., cov: 34)
• Consequence: ST3GAL1 NM_173344.3 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -1.67
• Publications: 1 publications found

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

Our verdict: Benign. The variant received -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-1.01).
• BA1: GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.654 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ST3GAL1	NM_173344.3	c.-428-8184T>G		intron_variant	Intron 2 of 9	ENST00000522652.6	NP_775479.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
ST3GAL1	ENST00000522652.6	c.-428-8184T>G		intron_variant	Intron 2 of 9	1	NM_173344.3	ENSP00000430515.1

Frequencies

GnomAD3 genomes AF: 0.551 AC: 83865 AN: 152112 Hom.: 23637 Cov.: 34

Gnomad AFR AF: 0.661

Gnomad AMI AF: 0.633

Gnomad AMR AF: 0.505

Gnomad ASJ AF: 0.471

Gnomad EAS AF: 0.322

Gnomad SAS AF: 0.410

Gnomad FIN AF: 0.588

Gnomad MID AF: 0.541

Gnomad NFE AF: 0.520

Gnomad OTH AF: 0.538

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

GnomAD4 genome AF: 0.551 AC: 83946 AN: 152230 Hom.: 23674 Cov.: 34 AF XY: 0.548 AC XY: 40807 AN XY: 74454

African (AFR) AF: 0.661 AC: 27442 AN: 41528

American (AMR) AF: 0.505 AC: 7730 AN: 15302

Ashkenazi Jewish (ASJ) AF: 0.471 AC: 1632 AN: 3468

East Asian (EAS) AF: 0.322 AC: 1667 AN: 5178

South Asian (SAS) AF: 0.410 AC: 1981 AN: 4826

European-Finnish (FIN) AF: 0.588 AC: 6238 AN: 10600

Middle Eastern (MID) AF: 0.554 AC: 163 AN: 294

European-Non Finnish (NFE) AF: 0.520 AC: 35387 AN: 68008

Other (OTH) AF: 0.534 AC: 1129 AN: 2114

Alfa AF: 0.472 Hom.: 2779

Bravo AF: 0.555

Asia WGS AF: 0.393 AC: 1370 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-1.0
CADD	Benign	0.29
DANN	Benign	0.40
PhyloP100		-1.7
Mutation Taster		=100/0	polymorphism (auto)

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

Other links and lift over

dbSNP: rs2102861; hg19: chr8-134519616;