Variant 1-77044327-C-T details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_030965.3(ST6GALNAC5):c.385C>T(p.Arg129Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000547 in 1,461,744 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000055 ( 0 hom. )

Consequence

ST6GALNAC5
NM_030965.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.02

Variant links:

Genes affected

ST6GALNAC5 (HGNC:19342): (ST6 N-acetylgalactosaminide alpha-2,6-sialyltransferase 5) The protein encoded by this gene is a Golgi type II transmembrane glycosyltransferase. The encoded protein catalyzes the transfer of sialic acid to cell surface proteins to modulate cell-cell interactions. Several transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Feb 2016]

ST6GALNAC5 links:

ST6GALNAC5 (HGNC:):

ST6GALNAC5 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
ST6GALNAC5	NM_030965.3 linkuse as main transcript	c.385C>T	p.Arg129Cys	missense_variant	3/5	ENST00000477717.6	NP_112227.1	Q9BVH7
ST6GALNAC5	NM_001320273.2 linkuse as main transcript	c.262-5931C>T		intron_variant			NP_001307202.1	B4DV27
ST6GALNAC5	NM_001320274.2 linkuse as main transcript	c.262-18648C>T		intron_variant			NP_001307203.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	UniProt
ST6GALNAC5	ENST00000477717.6 linkuse as main transcript	c.385C>T	p.Arg129Cys	missense_variant	3/5	1	NM_030965.3	ENSP00000417583.1	Q9BVH7
ST6GALNAC5	ENST00000318803.6 linkuse as main transcript	n.385C>T		non_coding_transcript_exon_variant	3/5	5		ENSP00000436263.1	F2Z2C8
ST6GALNAC5	ENST00000488940.1 linkuse as main transcript	n.188C>T		non_coding_transcript_exon_variant	2/3	5

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000796

AC:

AN:

251224

Hom.:

AF XY:

0.00000736

AC XY:

AN XY:

135868

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000176

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000547

AC:

AN:

1461744

Hom.:

Cov.:

AF XY:

0.00000413

AC XY:

AN XY:

727184

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000447

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000540

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

Alfa

AF:

0.0000712

Hom.:

Bravo

AF:

0.0000302

ExAC

AF:

0.00000824

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Jul 09, 2024

The c.385C>T (p.R129C) alteration is located in exon 3 (coding exon 3) of the ST6GALNAC5 gene. This alteration results from a C to T substitution at nucleotide position 385, causing the arginine (R) at amino acid position 129 to be replaced by a cysteine (C). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.29

BayesDel_addAF

Benign

-0.0055

BayesDel_noAF

Benign

-0.23

CADD

Pathogenic

DANN

Pathogenic

1.0

DEOGEN2

Benign

0.17

Eigen

Uncertain

0.61

Eigen_PC

Uncertain

0.58

FATHMM_MKL

Uncertain

0.81

LIST_S2

Pathogenic

0.98

M_CAP

Benign

0.037

MetaRNN

Uncertain

0.69

MetaSVM

Benign

-1.0

MutationAssessor

Uncertain

2.6

PrimateAI

Uncertain

0.70

PROVEAN

Benign

-1.5

REVEL

Benign

0.21

Sift

Benign

0.040

Sift4G

Benign

0.093

Polyphen

1.0

Vest4

0.70

MutPred

0.58

Loss of MoRF binding (P = 0.0021);

MVP

0.13

MPC

1.3

ClinPred

0.91

GERP RS

4.7

Varity_R

0.14

gMVP

0.73

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

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