rs1977982

chr11-67283772-A-T

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2 PP2 PP3

The NM_001619.5(GRK2):c.1394A>T(p.Lys465Met) variant causes a missense, splice region change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. 2/2 splice prediction tools predicting alterations to normal splicing. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: not found (cov: 33)
• Consequence: GRK2 NM_001619.5 missense, splice_region
• Scores: Splicing: ADA: 0.9791
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 8.66

Genes affected

GRK2 (HGNC:289): (G protein-coupled receptor kinase 2) This gene encodes a member of the G protein-coupled receptor kinase family of proteins. The encoded protein phosphorylates the beta-adrenergic receptor as well as a wide range of other substrates including non-GPCR cell surface receptors, and cytoskeletal, mitochondrial, and transcription factor proteins. Data from rodent models supports a role for this gene in embryonic development, heart function and metabolism. Elevated expression of this gene has been observed in human patients with heart failure and Alzheimer's disease. [provided by RefSeq, Sep 2017]

ACMG classification

Verdict is Uncertain_significance. Variant got 4 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP2: Missense variant where missense usually causes diseases, GRK2
• PP3: Splicing scoreres supports a deletorius effect: Scorers claiming Pathogenic: dbscSNV1_ADA, dbscSNV1_RF. No scorers claiming Uncertain. No scorers claiming Benign.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
GRK2	NM_001619.5	c.1394A>T	p.Lys465Met	missense_variant, splice_region_variant	16/21	ENST00000308595.10
GRK2	XM_011544773.2	c.1304A>T	p.Lys435Met	missense_variant, splice_region_variant	16/21
GRK2	XR_007062455.1	n.1556-82A>T		intron_variant, non_coding_transcript_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
GRK2	ENST00000308595.10	c.1394A>T	p.Lys465Met	missense_variant, splice_region_variant	16/21	1	NM_001619.5	P1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 32

GnomAD4 genome Cov.: 33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.64
BayesDel_addAF	Uncertain	0.037	T
BayesDel_noAF	Benign	-0.18
Cadd	Pathogenic	33
Dann	Uncertain	0.98
DEOGEN2	Uncertain	0.46	T
Eigen	Benign	0.18
Eigen_PC	Benign	0.15
FATHMM_MKL	Pathogenic	1.0	D
LIST_S2	Pathogenic	0.98	D
M_CAP	Benign	0.037	D
MetaRNN	Uncertain	0.71	D
MetaSVM	Benign	-0.85	T
MutationAssessor	Benign	1.7	L
MutationTaster	Benign	1.0	D;D
PrimateAI	Uncertain	0.75	T
PROVEAN	Uncertain	-2.7	D
REVEL	Uncertain	0.30
Sift	Benign	0.35	T
Sift4G	Benign	0.32	T
Polyphen		0.97	D
Vest4		0.79
MutPred		0.48		Loss of methylation at K465 (P = 0.0148);
MVP		0.082
MPC		2.2
ClinPred		0.91	D
GERP RS		4.4
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		2.7
Varity_R		0.27
gMVP		0.77

Splicing

Name	Calibrated prediction	Score	Prediction
dbscSNV1_ADA	Pathogenic	0.98
dbscSNV1_RF	Pathogenic	0.80
SpliceAI score (max)		0.40		Details are displayed if max score is > 0.2
DS_DL_spliceai		0.40		Position offset: 1

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

Publications

LitVar

Other links and lift over

dbSNP: rs1977982; hg19: chr11-67051243;