rs777094000

Variant summary

Our verdict is Likely pathogenic. Variant got 8 ACMG points: 8P and 0B. PM2PM5PP3_ModeratePP5_Moderate

The NM_002929.3(GRK1):c.1139T>A(p.Val380Asp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000436 in 1,536,438 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 Pathogenic (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. V380F) has been classified as Likely pathogenic.

Frequency

Genomes: 𝑓 0.000040 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000044 ( 0 hom. )

Consequence

GRK1
NM_002929.3 missense

Scores

Clinical Significance

Pathogenic criteria provided, single submitter P:3

Conservation

PhyloP100: 2.00

Variant links:

Genes affected

GRK1 (HGNC:10013): (G protein-coupled receptor kinase 1) This gene encodes a member of the guanine nucleotide-binding protein (G protein)-coupled receptor kinase subfamily of the Ser/Thr protein kinase family. The protein phosphorylates rhodopsin and initiates its deactivation. Defects in GRK1 are known to cause Oguchi disease 2 (also known as stationary night blindness Oguchi type-2). [provided by RefSeq, Jul 2008]

GRK1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 8 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PM5

Other missense variant is known to change same aminoacid residue: Variant chr13-113731287-G-T is described in ClinVar as [Likely_pathogenic]. Clinvar id is 870436.Status of the report is no_assertion_criteria_provided, 0 stars.

PP3

MetaRNN computational evidence supports a deleterious effect, 0.899

PP5

Variant 13-113731288-T-A is Pathogenic according to our data. Variant chr13-113731288-T-A is described in ClinVar as [Pathogenic]. Clinvar id is 13010.Status of the report is criteria_provided_single_submitter, 1 stars. Variant chr13-113731288-T-A is described in UniProt as null. Variant chr13-113731288-T-A is described in Lovd as [Likely_pathogenic].

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
GRK1	NM_002929.3 linkuse as main transcript	c.1139T>A	p.Val380Asp	missense_variant	5/7	ENST00000335678.7
GRK1	XM_047430493.1 linkuse as main transcript	c.434T>A	p.Val145Asp	missense_variant	5/7

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
GRK1	ENST00000335678.7 linkuse as main transcript	c.1139T>A	p.Val380Asp	missense_variant	5/7	1	NM_002929.3	P1
GRK1	ENST00000545304.1 linkuse as main transcript	n.122T>A		non_coding_transcript_exon_variant	2/4	4

Frequencies

GnomAD3 genomes

AF:

0.0000396

AC:

AN:

151634

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

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:

0.0000884

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000282

AC:

AN:

141852

Hom.:

AF XY:

0.0000264

AC XY:

AN XY:

75852

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000686

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000440

AC:

AN:

1384804

Hom.:

Cov.:

AF XY:

0.0000395

AC XY:

AN XY:

683328

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

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:

0.0000556

Gnomad4 OTH exome

AF:

0.0000173

GnomAD4 genome

AF:

0.0000396

AC:

AN:

151634

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74016

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000884

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000302

ExAC

AF:

0.0000459

AC:

ClinVar

Significance: Pathogenic

Submissions summary: Pathogenic:3

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Oguchi disease-2

Pathogenic:2

Likely pathogenic, no assertion criteria provided	research	Molecular Medicine, University of Leeds	Feb 20, 2019	- -
Pathogenic, no assertion criteria provided	literature only	OMIM	Feb 01, 1997	- -

not provided

Pathogenic:1

Pathogenic, criteria provided, single submitter

clinical testing

GeneDx

Oct 19, 2022

Published functional studies demonstrate reduced enzymatic activity and decreased protein expression (Khani et al., 1998); In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; This variant is associated with the following publications: (PMID: 31589614, 17070587, 22959359, 33252155, 9020843, 9501174) -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.97

BayesDel_addAF

Pathogenic

0.18

BayesDel_noAF

Uncertain

0.13

Cadd

Uncertain

Dann

Uncertain

0.99

DEOGEN2

Uncertain

0.47

Eigen

Uncertain

0.43

Eigen_PC

Uncertain

0.40

FATHMM_MKL

Uncertain

0.94

LIST_S2

Uncertain

0.93

M_CAP

Uncertain

0.17

MetaRNN

Pathogenic

0.90

MetaSVM

Benign

-0.72

MutationTaster

Benign

1.0

PrimateAI

Pathogenic

0.91

PROVEAN

Uncertain

-3.3

REVEL

Uncertain

0.54

Sift

Uncertain

0.0010

Sift4G

Pathogenic

0.0

Polyphen

1.0

Vest4

0.92

MutPred

0.76

Gain of catalytic residue at F376 (P = 0.0415);

MVP

0.82

MPC

0.55

ClinPred

0.98

GERP RS

4.7

Varity_R

0.96

gMVP

0.97

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