Variant X-2811341-A-G details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Benign. Variant got -8 ACMG points: 0P and 8B. BP4_StrongBS2

The NM_001141919.2(XG):c.460A>G(p.Met154Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000268 in 1,203,042 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 102 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. 14/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000063 ( 0 hom., 2 hem., cov: 22)

Exomes 𝑓: 0.00029 ( 0 hom. 100 hem. )

Consequence

XG
NM_001141919.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.22

Variant links:

Genes affected

XG (HGNC:12806): (Xg glycoprotein (Xg blood group)) This gene encodes the XG blood group antigen, and is located at the pseudoautosomal boundary on the short (p) arm of chromosome X. The three 5' exons reside in the pseudoautosomal region and the remaining exons within the X-specific end. A truncated copy of this gene is found on the Y chromosome at the pseudoautosomal boundary. It is transcribed, but not expected to make a Y-chromosome specific gene product. Alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Nov 2008]

XG links:

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -8 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.0675993).

BS2

High Hemizygotes in GnomAd4 at 2 BG gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
XG	NM_001141919.2 linkuse as main transcript	c.460A>G	p.Met154Val	missense_variant	10/11	ENST00000644266.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
XG	ENST00000644266.2 linkuse as main transcript	c.460A>G	p.Met154Val	missense_variant	10/11		NM_001141919.2		P55808-3
XG	ENST00000381174.10 linkuse as main transcript	c.415A>G	p.Met139Val	missense_variant	9/10	1		P1	P55808-1
XG	ENST00000419513.7 linkuse as main transcript	c.394A>G	p.Met132Val	missense_variant	8/9	1
XG	ENST00000509484.3 linkuse as main transcript	c.349A>G	p.Met117Val	missense_variant	7/8	3

Frequencies

GnomAD3 genomes

AF:

0.0000633

AC:

AN:

110566

Hom.:

Cov.:

AF XY:

0.0000610

AC XY:

AN XY:

32804

show subpopulations

Gnomad AFR

AF:

0.00

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:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000132

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000672

AC:

AN:

178596

Hom.:

AF XY:

0.0000949

AC XY:

AN XY:

63256

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:

0.000150

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000289

AC:

316

AN:

1092476

Hom.:

Cov.:

AF XY:

0.000279

AC XY:

100

AN XY:

358128

show subpopulations

Gnomad4 AFR exome

AF:

0.0000380

Gnomad4 AMR exome

AF:

0.00

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:

0.000367

Gnomad4 OTH exome

AF:

0.000131

GnomAD4 genome

AF:

0.0000633

AC:

AN:

110566

Hom.:

Cov.:

AF XY:

0.0000610

AC XY:

AN XY:

32804

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000132

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000741

Hom.:

Bravo

AF:

0.0000680

TwinsUK

AF:

0.000809

AC:

ALSPAC

AF:

0.00104

AC:

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000297

AC:

ExAC

AF:

0.0000412

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

Oct 17, 2023

The c.460A>G (p.M154V) alteration is located in exon 10 (coding exon 10) of the XG gene. This alteration results from a A to G substitution at nucleotide position 460, causing the methionine (M) at amino acid position 154 to be replaced by a valine (V). 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

0.092

BayesDel_addAF

Benign

-0.60

BayesDel_noAF

Benign

-0.85

CADD

Benign

2.8

DANN

Benign

0.58

DEOGEN2

Benign

0.098

.;.;T;.

FATHMM_MKL

Benign

0.043

LIST_S2

Benign

0.66

T;T;T;T

M_CAP

Benign

0.0018

MetaRNN

Benign

0.068

T;T;T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

1.2

.;.;L;.

MutationTaster

Benign

1.0

N;N;N

PrimateAI

Benign

0.31

PROVEAN

Benign

-0.72

.;N;N;.

REVEL

Benign

0.025

Sift

Benign

0.13

.;T;T;.

Sift4G

Benign

0.32

.;T;T;.

Polyphen

0.0070, 0.0060

.;.;B;B

Vest4

0.21

MVP

0.19

MPC

0.12

ClinPred

0.072

GERP RS

-0.73

Varity_R

0.14

gMVP

0.15

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