Variant chr1-27963628-C-T details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP4_ModerateBS2

The NM_018053.4(XKR8):c.425C>T(p.Thr142Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000698 in 1,612,648 control chromosomes in the GnomAD database, including 2 homozygotes. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00051 ( 0 hom., cov: 34)

Exomes 𝑓: 0.00072 ( 2 hom. )

Consequence

XKR8
NM_018053.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.54

Variant links:

Genes affected

XKR8 (HGNC:25508): (XK related 8) Enables phospholipid scramblase activity. Involved in engulfment of apoptotic cell; phosphatidylserine exposure on apoptotic cell surface; and positive regulation of myoblast differentiation. Located in plasma membrane. [provided by Alliance of Genome Resources, Apr 2022]

XKR8 links:

XKR8 (HGNC:):

XKR8 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -6 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.11743012).

BS2

High Homozygotes in GnomAdExome4 at 2 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
XKR8	NM_018053.4 linkuse as main transcript	c.425C>T	p.Thr142Met	missense_variant	2/3	ENST00000373884.6	NP_060523.2	Q9H6D3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
XKR8	ENST00000373884.6 linkuse as main transcript	c.425C>T	p.Thr142Met	missense_variant	2/3	1	NM_018053.4	ENSP00000362991.5		Q9H6D3

Frequencies

GnomAD3 genomes

AF:

0.000512

AC:

AN:

152254

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000217

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000458

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000192

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.000188

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000867

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000387

AC:

AN:

245256

Hom.:

AF XY:

0.000398

AC XY:

AN XY:

133060

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000205

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000111

Gnomad SAS exome

AF:

0.0000332

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000742

Gnomad OTH exome

AF:

0.000500

GnomAD4 exome

AF:

0.000718

AC:

1048

AN:

1460276

Hom.:

Cov.:

AF XY:

0.000704

AC XY:

511

AN XY:

726338

show subpopulations

Gnomad4 AFR exome

AF:

0.0000598

Gnomad4 AMR exome

AF:

0.000180

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000757

Gnomad4 SAS exome

AF:

0.0000698

Gnomad4 FIN exome

AF:

0.0000188

Gnomad4 NFE exome

AF:

0.000899

Gnomad4 OTH exome

AF:

0.000464

GnomAD4 genome

AF:

0.000512

AC:

AN:

152372

Hom.:

Cov.:

AF XY:

0.000443

AC XY:

AN XY:

74510

show subpopulations

Gnomad4 AFR

AF:

0.000216

Gnomad4 AMR

AF:

0.000457

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.000193

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.000188

Gnomad4 NFE

AF:

0.000867

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000717

Hom.:

Bravo

AF:

0.000419

TwinsUK

AF:

0.000539

AC:

ALSPAC

AF:

0.000259

AC:

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.00151

AC:

ExAC

AF:

0.000396

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

May 11, 2022

The c.425C>T (p.T142M) alteration is located in exon 2 (coding exon 2) of the XKR8 gene. This alteration results from a C to T substitution at nucleotide position 425, causing the threonine (T) at amino acid position 142 to be replaced by a methionine (M). 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

0.12

BayesDel_addAF

Benign

-0.38

BayesDel_noAF

Benign

-0.39

CADD

Uncertain

DANN

Uncertain

1.0

DEOGEN2

Benign

0.11

Eigen

Uncertain

0.25

Eigen_PC

Benign

0.15

FATHMM_MKL

Uncertain

0.93

LIST_S2

Benign

0.74

M_CAP

Benign

0.079

MetaRNN

Benign

0.12

MetaSVM

Benign

-0.74

MutationAssessor

Uncertain

2.4

MutationTaster

Benign

1.0

PrimateAI

Benign

0.39

PROVEAN

Benign

-2.3

REVEL

Benign

0.29

Sift

Uncertain

0.0050

Sift4G

Uncertain

0.0080

Polyphen

0.99

Vest4

0.21

MVP

0.40

MPC

0.56

ClinPred

0.14

GERP RS

3.5

Varity_R

0.22

gMVP

0.37

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