chr4-3013764-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_182982.3(GRK4):​c.677G>A​(p.Arg226Lys) variant causes a missense change. The variant allele was found at a frequency of 0.00000479 in 1,461,258 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 31)
Exomes 𝑓: 0.0000048 ( 0 hom. )

Consequence

GRK4
NM_182982.3 missense

Scores

5
14

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 6.66
Variant links:
Genes affected
GRK4 (HGNC:4543): (G protein-coupled receptor kinase 4) 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 the activated forms of G protein-coupled receptors thus initiating its deactivation. This gene has been linked to both genetic and acquired hypertension. Several transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Nov 2013]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.18844855).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
GRK4NM_182982.3 linkuse as main transcriptc.677G>A p.Arg226Lys missense_variant 8/16 ENST00000398052.9

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
GRK4ENST00000398052.9 linkuse as main transcriptc.677G>A p.Arg226Lys missense_variant 8/161 NM_182982.3 P1P32298-1
GRK4ENST00000345167.10 linkuse as main transcriptc.581G>A p.Arg194Lys missense_variant 7/151 P32298-2
GRK4ENST00000504933.1 linkuse as main transcriptc.677G>A p.Arg226Lys missense_variant 8/151 P32298-4
GRK4ENST00000398051.8 linkuse as main transcriptc.581G>A p.Arg194Lys missense_variant 7/141 P32298-3

Frequencies

GnomAD3 genomes
Cov.:
31
GnomAD4 exome
AF:
0.00000479
AC:
7
AN:
1461258
Hom.:
0
Cov.:
30
AF XY:
0.00000825
AC XY:
6
AN XY:
726930
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:
0.00000540
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
Cov.:
31
EpiCase
AF:
0.000109
EpiControl
AF:
0.00

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsMay 31, 2023The c.677G>A (p.R226K) alteration is located in exon 8 (coding exon 8) of the GRK4 gene. This alteration results from a G to A substitution at nucleotide position 677, causing the arginine (R) at amino acid position 226 to be replaced by a lysine (K). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.13
BayesDel_addAF
Benign
-0.056
T
BayesDel_noAF
Benign
-0.32
CADD
Uncertain
24
DANN
Uncertain
0.99
DEOGEN2
Benign
0.27
.;T;.;.
Eigen
Benign
-0.028
Eigen_PC
Benign
0.092
FATHMM_MKL
Uncertain
0.92
D
LIST_S2
Uncertain
0.93
D;D;D;D
M_CAP
Benign
0.011
T
MetaRNN
Benign
0.19
T;T;T;T
MetaSVM
Benign
-0.97
T
MutationAssessor
Benign
0.53
.;N;.;N
MutationTaster
Benign
1.0
D;D;D;D
PrimateAI
Uncertain
0.63
T
PROVEAN
Uncertain
-2.8
D;D;D;D
REVEL
Benign
0.13
Sift
Benign
0.29
T;T;T;T
Sift4G
Benign
0.67
T;T;T;T
Polyphen
0.70
P;P;B;B
Vest4
0.34
MutPred
0.34
.;Gain of methylation at K221 (P = 0.0774);.;Gain of methylation at K221 (P = 0.0774);
MVP
0.61
MPC
0.075
ClinPred
0.97
D
GERP RS
3.8
Varity_R
0.61
gMVP
0.59

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

No publications associated with this variant yet.

Other links and lift over

hg19: chr4-3015491; API