rs13337470

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP4_StrongBS1BS2

The ENST00000394975.3(VKORC1):​c.173+486C>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00111 in 1,263,550 control chromosomes in the GnomAD database, including 14 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 0.0052 ( 8 hom., cov: 31)
Exomes 𝑓: 0.00055 ( 6 hom. )

Consequence

VKORC1
ENST00000394975.3 intron

Scores

2

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 0.129
Variant links:
Genes affected
VKORC1 (HGNC:23663): (vitamin K epoxide reductase complex subunit 1) This gene encodes the catalytic subunit of the vitamin K epoxide reductase complex, which is responsible for the reduction of inactive vitamin K 2,3-epoxide to active vitamin K in the endoplasmic reticulum membrane. Vitamin K is a required co-factor for carboxylation of glutamic acid residues by vitamin K-dependent gamma-carboxylase in blood-clotting enzymes. Allelic variation in this gene is associated with vitamin k-dependent clotting factors combined deficiency of 2, and increased resistance or sensitivity to warfarin, an inhibitor of vitamin K epoxide reductase. Pseudogenes of this gene are located on chromosomes 1 and X. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Aug 2015]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -12 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.89).
BS1
Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00521 (792/152156) while in subpopulation AFR AF= 0.0185 (769/41518). AF 95% confidence interval is 0.0174. There are 8 homozygotes in gnomad4. There are 383 alleles in male gnomad4 subpopulation. Median coverage is 31. This position pass quality control queck.
BS2
High Homozygotes in GnomAd4 at 8 AD,AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
VKORC1NM_024006.6 linkuse as main transcriptc.173+486C>A intron_variant ENST00000394975.3 NP_076869.1
VKORC1NM_001311311.2 linkuse as main transcriptc.173+486C>A intron_variant NP_001298240.1
VKORC1NM_206824.3 linkuse as main transcriptc.173+486C>A intron_variant NP_996560.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
VKORC1ENST00000394975.3 linkuse as main transcriptc.173+486C>A intron_variant 1 NM_024006.6 ENSP00000378426 P1Q9BQB6-1
ENST00000624508.1 linkuse as main transcriptn.345G>T non_coding_transcript_exon_variant 1/1

Frequencies

GnomAD3 genomes
AF:
0.00520
AC:
790
AN:
152038
Hom.:
8
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.0185
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00112
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:
0.000956
GnomAD4 exome
AF:
0.000551
AC:
612
AN:
1111394
Hom.:
6
Cov.:
15
AF XY:
0.000476
AC XY:
263
AN XY:
552014
show subpopulations
Gnomad4 AFR exome
AF:
0.0210
Gnomad4 AMR exome
AF:
0.000536
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000154
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000118
Gnomad4 OTH exome
AF:
0.000895
GnomAD4 genome
AF:
0.00521
AC:
792
AN:
152156
Hom.:
8
Cov.:
31
AF XY:
0.00515
AC XY:
383
AN XY:
74380
show subpopulations
Gnomad4 AFR
AF:
0.0185
Gnomad4 AMR
AF:
0.00111
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:
0.000946
Alfa
AF:
0.00251
Hom.:
0
Bravo
AF:
0.00591
Asia WGS
AF:
0.00115
AC:
4
AN:
3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.89
CADD
Benign
4.0
DANN
Benign
0.50

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: rs13337470; hg19: chr16-31105392; API