Variant 7-7238875-C-T details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_020156.5(C1GALT1):c.841C>T(p.Pro281Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000583 in 1,613,588 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00031 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00061 ( 0 hom. )

Consequence

C1GALT1
NM_020156.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.56

Variant links:

Genes affected

C1GALT1 (HGNC:24337): (core 1 synthase, glycoprotein-N-acetylgalactosamine 3-beta-galactosyltransferase 1) The protein encoded by this gene generates the common core 1 O-glycan structure, Gal-beta-1-3GalNAc-R, by the transfer of Gal from UDP-Gal to GalNAc-alpha-1-R. Core 1 is a precursor for many extended mucin-type O-glycans on cell surface and secreted glycoproteins. Studies in mice suggest that this gene plays a key role in thrombopoiesis and kidney homeostasis.[provided by RefSeq, Sep 2010]

C1GALT1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.050435573).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
C1GALT1	NM_020156.5 linkuse as main transcript	c.841C>T	p.Pro281Ser	missense_variant	3/4	ENST00000436587.7	NP_064541.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
C1GALT1	ENST00000436587.7 linkuse as main transcript	c.841C>T	p.Pro281Ser	missense_variant	3/4	5	NM_020156.5	ENSP00000389176	P1	Q9NS00-1
C1GALT1	ENST00000223122.4 linkuse as main transcript	c.841C>T	p.Pro281Ser	missense_variant	2/3	1		ENSP00000223122	P1	Q9NS00-1
C1GALT1	ENST00000402468.3 linkuse as main transcript	c.841C>T	p.Pro281Ser	missense_variant	2/2	1		ENSP00000384550		Q9NS00-2

Frequencies

GnomAD3 genomes

AF:

0.000309

AC:

AN:

152156

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000724

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.000660

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000544

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000336

AC:

AN:

250106

Hom.:

AF XY:

0.000325

AC XY:

AN XY:

135296

show subpopulations

Gnomad AFR exome

AF:

0.0000622

Gnomad AMR exome

AF:

0.0000581

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000328

Gnomad FIN exome

AF:

0.000324

Gnomad NFE exome

AF:

0.000637

Gnomad OTH exome

AF:

0.000164

GnomAD4 exome

AF:

0.000611

AC:

893

AN:

1461314

Hom.:

Cov.:

AF XY:

0.000603

AC XY:

438

AN XY:

726934

show subpopulations

Gnomad4 AFR exome

AF:

0.0000598

Gnomad4 AMR exome

AF:

0.0000224

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000116

Gnomad4 FIN exome

AF:

0.000375

Gnomad4 NFE exome

AF:

0.000762

Gnomad4 OTH exome

AF:

0.000331

GnomAD4 genome

AF:

0.000309

AC:

AN:

152274

Hom.:

Cov.:

AF XY:

0.000296

AC XY:

AN XY:

74440

show subpopulations

Gnomad4 AFR

AF:

0.0000722

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.000660

Gnomad4 NFE

AF:

0.000544

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000514

Hom.:

Bravo

AF:

0.000332

TwinsUK

AF:

0.000809

AC:

ALSPAC

AF:

0.00130

AC:

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000465

AC:

ExAC

AF:

0.000329

AC:

EpiCase

AF:

0.000545

EpiControl

AF:

0.000474

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

Apr 10, 2023

The c.841C>T (p.P281S) alteration is located in exon 3 (coding exon 2) of the C1GALT1 gene. This alteration results from a C to T substitution at nucleotide position 841, causing the proline (P) at amino acid position 281 to be replaced by a serine (S). 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

-0.43

BayesDel_noAF

Benign

-0.44

CADD

Benign

DANN

Benign

0.96

DEOGEN2

Benign

0.14

T;T;.

Eigen

Benign

0.0030

Eigen_PC

Benign

0.19

FATHMM_MKL

Uncertain

0.92

LIST_S2

Benign

0.83

T;.;T

M_CAP

Benign

0.0091

MetaRNN

Benign

0.050

T;T;T

MetaSVM

Benign

-0.99

MutationAssessor

Benign

1.6

L;L;L

MutationTaster

Benign

1.0

D;D;D

PrimateAI

Uncertain

0.63

PROVEAN

Benign

-0.87

N;N;N

REVEL

Benign

0.063

Sift

Benign

0.31

T;T;T

Sift4G

Benign

0.78

T;T;T

Polyphen

0.017

B;B;B

Vest4

0.23

MVP

0.20

MPC

0.10

ClinPred

0.037

GERP RS

5.5

Varity_R

0.067

gMVP

0.68

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

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