14-96860611-C-T

Variant names:

• chr14-96860611-C-T
• rs761494436
• NM_003384.3:c.944C>T

Variant summary

Our verdict is Likely pathogenic. The variant received 8 ACMG points: 8P and 0B. PM1 PM2 PP3_Strong

The NM_003384.3(VRK1):​c.944C>T​(p.Pro315Leu) variant causes a missense change. The variant allele was found at a frequency of 0.000000685 in 1,460,826 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: VRK1 NM_003384.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:2
• Conservation: PhyloP100: 6.59
• Publications: 1 publications found

Genes affected

VRK1 (HGNC:12718): (VRK serine/threonine kinase 1) This gene encodes a member of the vaccinia-related kinase (VRK) family of serine/threonine protein kinases. This gene is widely expressed in human tissues and has increased expression in actively dividing cells, such as those in testis, thymus, fetal liver, and carcinomas. Its protein localizes to the nucleus and has been shown to promote the stability and nuclear accumulation of a transcriptionally active p53 molecule and, in vitro, to phosphorylate Thr18 of p53 and reduce p53 ubiquitination. This gene, therefore, may regulate cell proliferation. This protein also phosphorylates histone, casein, and the transcription factors ATF2 (activating transcription factor 2) and c-JUN. [provided by RefSeq, Jul 2008]

VRK1 Gene-Disease associations (from GenCC):

• pontocerebellar hypoplasia type 1A

  Inheritance: AR Classification: STRONG, MODERATE Submitted by: Labcorp Genetics (formerly Invitae), Genomics England PanelApp, Ambry Genetics, G2P
• microcephaly-complex motor and sensory axonal neuropathy syndrome

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
• pontocerebellar hypoplasia type 1

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

Our verdict: Likely_pathogenic. The variant received 8 ACMG points.

• PM1: In a domain Protein kinase (size 280) in uniprot entity VRK1_HUMAN there are 11 pathogenic changes around while only 3 benign (79%) in NM_003384.3
• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.966

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_003384.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	VRK1	NM_003384.3	MANE Select	c.944C>T	p.Pro315Leu	missense	Exon 11 of 13	NP_003375.1	Q99986
	VRK1	NM_001411051.1		c.944C>T	p.Pro315Leu	missense	Exon 11 of 14	NP_001397980.1	H0YJF7
	VRK1	NM_001411053.1		c.944C>T	p.Pro315Leu	missense	Exon 11 of 13	NP_001397982.1	A0A7P0T838

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	VRK1	ENST00000216639.8	TSL:1 MANE Select	c.944C>T	p.Pro315Leu	missense	Exon 11 of 13	ENSP00000216639.3	Q99986
	VRK1	ENST00000679770.1		c.944C>T	p.Pro315Leu	missense	Exon 11 of 14	ENSP00000505214.1	A0A7P0Z445
	VRK1	ENST00000679462.1		c.944C>T	p.Pro315Leu	missense	Exon 10 of 12	ENSP00000506011.1	A0A7P0TAA6

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 6.85e-7 AC: 1 AN: 1460826 Hom.: 0 Cov.: 30 AF XY: 0.00 AC XY: 0 AN XY: 726734

African (AFR) AF: 0.00 AC: 0 AN: 33438

American (AMR) AF: 0.00 AC: 0 AN: 44680

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26090

East Asian (EAS) AF: 0.00 AC: 0 AN: 39532

South Asian (SAS) AF: 0.00 AC: 0 AN: 86180

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53390

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5754

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1111420

Other (OTH) AF: 0.0000166 AC: 1 AN: 60342

GnomAD4 genome Cov.: 32

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	2	-	Pontocerebellar hypoplasia type 1A (2)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.84
BayesDel_addAF	Pathogenic	0.28	D
BayesDel_noAF	Pathogenic	0.17
CADD	Pathogenic	26
DANN	Uncertain	1.0
DEOGEN2	Pathogenic	0.84	D
Eigen	Pathogenic	0.96
Eigen_PC	Pathogenic	0.88
FATHMM_MKL	Pathogenic	0.98	D
LIST_S2	Uncertain	0.93	D
M_CAP	Uncertain	0.10	D
MetaRNN	Pathogenic	0.97	D
MetaSVM	Uncertain	-0.27	T
MutationAssessor	Pathogenic	4.4	H
PhyloP100		6.6
PrimateAI	Uncertain	0.50	T
PROVEAN	Pathogenic	-8.8	D
REVEL	Uncertain	0.52
Sift	Uncertain	0.0020	D
Sift4G	Uncertain	0.0020	D
Polyphen		1.0	D
Vest4		0.89
MutPred		0.76		Loss of methylation at K314 (P = 0.0785)
MVP		0.73
MPC		0.96
ClinPred		1.0	D
GERP RS		6.0
Varity_R		0.91
gMVP		0.86
Mutation Taster		=17/83	disease causing

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

Other links and lift over

dbSNP: rs761494436; hg19: chr14-97326948;