rs4737264

chr8-55198762-A-Cchr8-55198762-A-T

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP4_Strong BA1

The NM_052898.2(XKR4):c.806+95468A>C variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.194 in 152,152 control chromosomes in the GnomAD database, including 3,011 homozygotes. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: 𝑓 0.19 (3011 hom., cov: 32)
• Consequence: XKR4 NM_052898.2 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.885

Genes affected

XKR4 (HGNC:29394): (XK related 4) Enables phospholipid scramblase activity. Involved in phosphatidylserine exposure on apoptotic cell surface. Predicted to be integral component of membrane. Predicted to be active in plasma membrane. [provided by Alliance of Genome Resources, Apr 2022]

ACMG classification

Verdict is Benign. Variant got -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.86).
• BA1: GnomAd4 highest subpopulation (NFE) allele frequency at 95% confidence interval = 0.219 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
XKR4	NM_052898.2	c.806+95468A>C		intron_variant		ENST00000327381.7

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
XKR4	ENST00000327381.7	c.806+95468A>C		intron_variant		1	NM_052898.2	P1

Frequencies

GnomAD3 genomes AF: 0.194 AC: 29519 AN: 152034 Hom.: 3003 Cov.: 32

Gnomad AFR AF: 0.155

Gnomad AMI AF: 0.226

Gnomad AMR AF: 0.176

Gnomad ASJ AF: 0.161

Gnomad EAS AF: 0.131

Gnomad SAS AF: 0.113

Gnomad FIN AF: 0.280

Gnomad MID AF: 0.124

Gnomad NFE AF: 0.222

Gnomad OTH AF: 0.159

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome AF: 0.194 AC: 29563 AN: 152152 Hom.: 3011 Cov.: 32 AF XY: 0.193 AC XY: 14353 AN XY: 74380

Gnomad4 AFR AF: 0.155

Gnomad4 AMR AF: 0.176

Gnomad4 ASJ AF: 0.161

Gnomad4 EAS AF: 0.130

Gnomad4 SAS AF: 0.113

Gnomad4 FIN AF: 0.280

Gnomad4 NFE AF: 0.222

Gnomad4 OTH AF: 0.165

Alfa AF: 0.202 Hom.: 4360

Bravo AF: 0.188

Asia WGS AF: 0.148 AC: 514 AN: 3476

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.86
Cadd	Benign	3.9
Dann	Benign	0.75

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

Other links and lift over

dbSNP: rs4737264; hg19: chr8-56111322;