chr2-85858435-T-C

Position:

• chr2-85858435-T-C

Variant summary

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

The NM_003896.4(ST3GAL5):​c.318+2746A>G variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.31 in 152,066 control chromosomes in the GnomAD database, including 7,667 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 0.31 (7667 hom., cov: 32)
• Consequence: ST3GAL5 NM_003896.4 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -1.51

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]

ACMG classification

Verdict is Benign. Variant got -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-1.03).
• BA1: GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.523 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
ST3GAL5	NM_003896.4	c.318+2746A>G		intron_variant		ENST00000638572.2	NP_003887.3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
ST3GAL5	ENST00000638572.2	c.318+2746A>G		intron_variant		1	NM_003896.4	ENSP00000491316	A1

Frequencies

GnomAD3 genomes AF: 0.310 AC: 47065 AN: 151948 Hom.: 7663 Cov.: 32

Gnomad AFR AF: 0.247

Gnomad AMI AF: 0.333

Gnomad AMR AF: 0.264

Gnomad ASJ AF: 0.232

Gnomad EAS AF: 0.541

Gnomad SAS AF: 0.441

Gnomad FIN AF: 0.327

Gnomad MID AF: 0.253

Gnomad NFE AF: 0.332

Gnomad OTH AF: 0.315

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

GnomAD4 genome AF: 0.310 AC: 47088 AN: 152066 Hom.: 7667 Cov.: 32 AF XY: 0.313 AC XY: 23259 AN XY: 74330

Gnomad4 AFR AF: 0.247

Gnomad4 AMR AF: 0.264

Gnomad4 ASJ AF: 0.232

Gnomad4 EAS AF: 0.539

Gnomad4 SAS AF: 0.439

Gnomad4 FIN AF: 0.327

Gnomad4 NFE AF: 0.332

Gnomad4 OTH AF: 0.322

Alfa AF: 0.321 Hom.: 1036

Bravo AF: 0.298

Asia WGS AF: 0.457 AC: 1589 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	0.71
DANN	Benign	0.31

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: rs6759239; hg19: chr2-86085558;