Variant 18-46688895-G-A details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Benign. Variant got -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BS1BS2

The NM_013305.6(ST8SIA5):c.336C>T(p.Asn112=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00252 in 1,613,720 control chromosomes in the GnomAD database, including 73 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.013 ( 32 hom., cov: 32)

Exomes 𝑓: 0.0014 ( 41 hom. )

Consequence

ST8SIA5
NM_013305.6 synonymous

Scores

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: -0.495

Variant links:

Genes affected

ST8SIA5 (HGNC:17827): (ST8 alpha-N-acetyl-neuraminide alpha-2,8-sialyltransferase 5) The protein encoded by this gene is a type II membrane protein that may be present in the Golgi apparatus. The encoded protein, which is a member of glycosyltransferase family 29, may be involved in the synthesis of gangliosides GD1c, GT1a, GQ1b, and GT3 from GD1a, GT1b, GM1b, and GD3, respectively. [provided by RefSeq, Jul 2008]

ST8SIA5 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -21 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.49).

BP6

Variant 18-46688895-G-A is Benign according to our data. Variant chr18-46688895-G-A is described in ClinVar as [Benign]. Clinvar id is 777304.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BP7

Synonymous conserved (PhyloP=-0.495 with no splicing effect.

BS1

Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.0129 (1969/152308) while in subpopulation AFR AF= 0.0441 (1834/41564). AF 95% confidence interval is 0.0424. There are 32 homozygotes in gnomad4. There are 943 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.

BS2

High Homozygotes in GnomAd4 at 32 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein
ST8SIA5	NM_013305.6 linkuse as main transcript	c.336C>T	p.Asn112=	synonymous_variant	4/7	ENST00000315087.12	NP_037437.2
ST8SIA5	NM_001307986.2 linkuse as main transcript	c.444C>T	p.Asn148=	synonymous_variant	5/8		NP_001294915.1
ST8SIA5	NM_001307987.2 linkuse as main transcript	c.243C>T	p.Asn81=	synonymous_variant	3/6		NP_001294916.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
ST8SIA5	ENST00000315087.12 linkuse as main transcript	c.336C>T	p.Asn112=	synonymous_variant	4/7	1	NM_013305.6	ENSP00000321343	P4	O15466-1

Frequencies

GnomAD3 genomes

AF:

0.0129

AC:

1968

AN:

152190

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0442

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00602

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000620

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00316

Gnomad NFE

AF:

0.000250

Gnomad OTH

AF:

0.0105

GnomAD3 exomes

AF:

0.00376

AC:

941

AN:

250488

Hom.:

AF XY:

0.00288

AC XY:

390

AN XY:

135372

show subpopulations

Gnomad AFR exome

AF:

0.0500

Gnomad AMR exome

AF:

0.00244

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.000197

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000229

Gnomad OTH exome

AF:

0.00213

GnomAD4 exome

AF:

0.00143

AC:

2094

AN:

1461412

Hom.:

Cov.:

AF XY:

0.00127

AC XY:

923

AN XY:

727004

show subpopulations

Gnomad4 AFR exome

AF:

0.0462

Gnomad4 AMR exome

AF:

0.00280

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.000227

Gnomad4 SAS exome

AF:

0.000371

Gnomad4 FIN exome

AF:

0.0000187

Gnomad4 NFE exome

AF:

0.000121

Gnomad4 OTH exome

AF:

0.00363

GnomAD4 genome

AF:

0.0129

AC:

1969

AN:

152308

Hom.:

Cov.:

AF XY:

0.0127

AC XY:

943

AN XY:

74480

show subpopulations

Gnomad4 AFR

AF:

0.0441

Gnomad4 AMR

AF:

0.00601

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000621

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000250

Gnomad4 OTH

AF:

0.0104

Alfa

AF:

0.00662

Hom.:

Bravo

AF:

0.0150

Asia WGS

AF:

0.00289

AC:

AN:

3478

EpiCase

AF:

0.0000546

EpiControl

AF:

0.000356

ClinVar

Significance: Benign

Submissions summary: Benign:2

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Benign:2

Benign, criteria provided, single submitter	clinical testing	Labcorp Genetics (formerly Invitae), Labcorp	Jan 30, 2018	- -
Benign, criteria provided, single submitter	not provided	Breakthrough Genomics, Breakthrough Genomics	-	- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.49

CADD

Benign

7.3

DANN

Benign

0.62

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.13

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