22-16784373-T-C

Variant summary

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

The NM_001386955.1(XKR3):ā€‹c.626A>Gā€‹(p.Tyr209Cys) variant causes a missense change. The variant allele was found at a frequency of 0.00000373 in 1,607,038 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (ā˜…).

Frequency

Genomes: š‘“ 0.000020 ( 0 hom., cov: 33)
Exomes š‘“: 0.0000021 ( 0 hom. )

Consequence

XKR3
NM_001386955.1 missense

Scores

2
4
12

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.65
Variant links:
Genes affected
XKR3 (HGNC:28778): (XK related 3) XKRX (MIM 300684) and XKR3 are homologs of the Kell blood group precursor XK (MIM 314850), which is a putative membrane transporter and a component of the XK/Kell complex of the Kell blood group system (Calenda et al., 2006 [PubMed 16431037]).[supplied by OMIM, Mar 2008]

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
XKR3NM_001386955.1 linkuse as main transcriptc.626A>G p.Tyr209Cys missense_variant 4/4 ENST00000684488.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
XKR3ENST00000684488.1 linkuse as main transcriptc.626A>G p.Tyr209Cys missense_variant 4/4 NM_001386955.1 P1
XKR3ENST00000331428.5 linkuse as main transcriptc.626A>G p.Tyr209Cys missense_variant 4/41 P1

Frequencies

GnomAD3 genomes
AF:
0.0000197
AC:
3
AN:
152180
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000131
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD4 exome
AF:
0.00000206
AC:
3
AN:
1454858
Hom.:
0
Cov.:
33
AF XY:
0.00000277
AC XY:
2
AN XY:
723152
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000232
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:
9.01e-7
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
AF:
0.0000197
AC:
3
AN:
152180
Hom.:
0
Cov.:
33
AF XY:
0.00
AC XY:
0
AN XY:
74350
show subpopulations
Gnomad4 AFR
AF:
0.0000241
Gnomad4 AMR
AF:
0.000131
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000340

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 submitterclinical testingAmbry GeneticsDec 22, 2023The c.626A>G (p.Y209C) alteration is located in exon 4 (coding exon 3) of the XKR3 gene. This alteration results from a A to G substitution at nucleotide position 626, causing the tyrosine (Y) at amino acid position 209 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
0.16
BayesDel_addAF
Benign
-0.0018
T
BayesDel_noAF
Benign
-0.24
CADD
Benign
19
DANN
Uncertain
0.98
DEOGEN2
Benign
0.29
T
Eigen
Benign
-0.048
Eigen_PC
Benign
-0.29
FATHMM_MKL
Benign
0.60
D
LIST_S2
Benign
0.84
T
M_CAP
Benign
0.0076
T
MetaRNN
Uncertain
0.70
D
MetaSVM
Benign
-0.61
T
MutationAssessor
Benign
1.5
L
MutationTaster
Benign
0.99
D
PROVEAN
Pathogenic
-7.0
D
REVEL
Uncertain
0.30
Sift
Uncertain
0.0010
D
Sift4G
Pathogenic
0.0
D
Polyphen
1.0
D
Vest4
0.52
MutPred
0.68
Loss of catalytic residue at L204 (P = 0.0863);
MVP
0.73
MPC
3.5
ClinPred
0.99
D
GERP RS
0.77
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.60
gMVP
0.48

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.

Other links and lift over

dbSNP: rs1346140068; hg19: chr22-17265263; API