Variant 3-195070058-G-A details in Genebe, Genetics Data Aggregator

Variant summary

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

The NM_152531.5(XXYLT1):c.839C>T(p.Pro280Leu) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000752 in 1,596,084 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00022 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000060 ( 0 hom. )

Consequence

XXYLT1
NM_152531.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 9.88

Variant links:

Genes affected

XXYLT1 (HGNC:26639): (xyloside xylosyltransferase 1) Enables magnesium ion binding activity; manganese ion binding activity; and xylosyl alpha-1,3-xylosyltransferase activity. Involved in O-glycan processing. Is integral component of endoplasmic reticulum membrane. [provided by Alliance of Genome Resources, Apr 2022]

XXYLT1 links:

Genome browser will be placed here

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	UniProt
XXYLT1	NM_152531.5 linkuse as main transcript	c.839C>T	p.Pro280Leu	missense_variant	4/4	ENST00000310380.11

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
XXYLT1	ENST00000310380.11 linkuse as main transcript	c.839C>T	p.Pro280Leu	missense_variant	4/4	1	NM_152531.5	P1	Q8NBI6-1

Frequencies

GnomAD3 genomes

AF:

0.000223

AC:

AN:

152206

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00183

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000588

Gnomad OTH

AF:

0.000478

GnomAD3 exomes

AF:

0.0000880

AC:

AN:

227368

Hom.:

AF XY:

0.0000956

AC XY:

AN XY:

125498

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000537

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:

0.0000190

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000596

AC:

AN:

1443878

Hom.:

Cov.:

AF XY:

0.0000626

AC XY:

AN XY:

718560

show subpopulations

Gnomad4 AFR exome

AF:

0.0000599

Gnomad4 AMR exome

AF:

0.000589

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000117

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000487

Gnomad4 OTH exome

AF:

0.0000499

GnomAD4 genome

AF:

0.000223

AC:

AN:

152206

Hom.:

Cov.:

AF XY:

0.000323

AC XY:

AN XY:

74350

show subpopulations

Gnomad4 AFR

AF:

0.0000241

Gnomad4 AMR

AF:

0.00183

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000588

Gnomad4 OTH

AF:

0.000478

Alfa

AF:

0.000130

Hom.:

Bravo

AF:

0.000227

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000126

AC:

ExAC

AF:

0.00000837

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

Mar 21, 2023

The c.839C>T (p.P280L) alteration is located in exon 4 (coding exon 4) of the XXYLT1 gene. This alteration results from a C to T substitution at nucleotide position 839, causing the proline (P) at amino acid position 280 to be replaced by a leucine (L). 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

Uncertain

0.37

BayesDel_addAF

Benign

-0.13

BayesDel_noAF

Uncertain

-0.070

Cadd

Pathogenic

Dann

Pathogenic

1.0

DEOGEN2

Uncertain

0.49

T;.;T;.

Eigen

Pathogenic

0.92

Eigen_PC

Pathogenic

0.88

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Uncertain

0.97

D;D;D;D

M_CAP

Benign

0.070

MetaRNN

Uncertain

0.47

T;T;T;T

MetaSVM

Benign

-0.82

MutationAssessor

Uncertain

2.6

M;.;.;.

MutationTaster

Benign

1.0

D;D;D;D;D

PrimateAI

Uncertain

0.59

PROVEAN

Pathogenic

-8.3

D;D;D;D

REVEL

Uncertain

0.49

Sift

Uncertain

0.0030

D;D;D;D

Sift4G

Pathogenic

0.0

D;D;D;D

Polyphen

1.0

D;D;.;D

Vest4

0.59

MVP

0.27

MPC

1.4

ClinPred

0.85

GERP RS

5.8

Varity_R

0.66

gMVP

0.78

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