rs777094000

Variant summary

Our verdict is Pathogenic. The variant received 16 ACMG points: 16P and 0B. PM1PM2PM5PP3_ModeratePP5_Very_Strong

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 Likely 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

5
11
2

Clinical Significance

Pathogenic/Likely pathogenic criteria provided, multiple submitters, no conflicts P:4

Conservation

PhyloP100: 2.00

Publications

4 publications found
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 Gene-Disease associations (from GenCC):
  • Oguchi disease
    Inheritance: AR Classification: DEFINITIVE, SUPPORTIVE Submitted by: Orphanet, ClinGen
  • Oguchi disease-2
    Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), G2P

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Pathogenic. The variant received 16 ACMG points.

PM1
In a domain Protein kinase (size 265) in uniprot entity GRK1_HUMAN there are 8 pathogenic changes around while only 2 benign (80%) in NM_002929.3
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 VariationId 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/Likely_pathogenic. ClinVar VariationId is 13010.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
GRK1NM_002929.3 linkc.1139T>A p.Val380Asp missense_variant Exon 5 of 7 ENST00000335678.7 NP_002920.1
GRK1XM_047430493.1 linkc.434T>A p.Val145Asp missense_variant Exon 5 of 7 XP_047286449.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
GRK1ENST00000335678.7 linkc.1139T>A p.Val380Asp missense_variant Exon 5 of 7 1 NM_002929.3 ENSP00000334876.5
GRK1ENST00000545304.1 linkn.122T>A non_coding_transcript_exon_variant Exon 2 of 4 4

Frequencies

GnomAD3 genomes
AF:
0.0000396
AC:
6
AN:
151634
Hom.:
0
Cov.:
32
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
GnomAD2 exomes
AF:
0.0000282
AC:
4
AN:
141852
AF XY:
0.0000264
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 FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000686
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000440
AC:
61
AN:
1384804
Hom.:
0
Cov.:
31
AF XY:
0.0000395
AC XY:
27
AN XY:
683328
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
31590
American (AMR)
AF:
0.00
AC:
0
AN:
35690
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25172
East Asian (EAS)
AF:
0.00
AC:
0
AN:
35732
South Asian (SAS)
AF:
0.00
AC:
0
AN:
79234
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
34944
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5694
European-Non Finnish (NFE)
AF:
0.0000556
AC:
60
AN:
1078840
Other (OTH)
AF:
0.0000173
AC:
1
AN:
57908
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.476
Heterozygous variant carriers
0
3
7
10
14
17
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.0000396
AC:
6
AN:
151634
Hom.:
0
Cov.:
32
AF XY:
0.0000135
AC XY:
1
AN XY:
74016
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41176
American (AMR)
AF:
0.00
AC:
0
AN:
15246
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3466
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5180
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4794
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10556
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
314
European-Non Finnish (NFE)
AF:
0.0000884
AC:
6
AN:
67910
Other (OTH)
AF:
0.00
AC:
0
AN:
2082
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.508
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.0000302
ExAC
AF:
0.0000459
AC:
1

ClinVar

Significance: Pathogenic/Likely pathogenic
Submissions summary: Pathogenic:4
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Oguchi disease-2 Pathogenic:2
Feb 01, 1997
OMIM
Significance:Pathogenic
Review Status:no assertion criteria provided
Collection Method:literature only

- -

Feb 20, 2019
Molecular Medicine, University of Leeds
Significance:Likely pathogenic
Review Status:no assertion criteria provided
Collection Method:research

- -

not provided Pathogenic:1
Oct 19, 2022
GeneDx
Significance:Pathogenic
Review Status:criteria provided, single submitter
Collection Method:clinical testing

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) -

Retinal dystrophy Pathogenic:1
Jan 01, 2019
Institute of Human Genetics, Univ. Regensburg, Univ. Regensburg
Significance:Likely pathogenic
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.97
BayesDel_addAF
Pathogenic
0.18
D
BayesDel_noAF
Uncertain
0.13
CADD
Uncertain
26
DANN
Uncertain
0.99
DEOGEN2
Uncertain
0.47
T
Eigen
Uncertain
0.43
Eigen_PC
Uncertain
0.40
FATHMM_MKL
Uncertain
0.94
D
LIST_S2
Uncertain
0.93
D
M_CAP
Uncertain
0.17
D
MetaRNN
Pathogenic
0.90
D
MetaSVM
Benign
-0.72
T
PhyloP100
2.0
PrimateAI
Pathogenic
0.91
D
PROVEAN
Uncertain
-3.3
D
REVEL
Uncertain
0.54
Sift
Uncertain
0.0010
D
Sift4G
Pathogenic
0.0
D
Polyphen
1.0
D
Vest4
0.92
MutPred
0.76
Gain of catalytic residue at F376 (P = 0.0415);
MVP
0.82
MPC
0.55
ClinPred
0.98
D
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

Other links and lift over

dbSNP: rs777094000; hg19: chr13-114434261; API