11-67283748-AC-TA

Variant names:

• chr11-67283748-AC-TA
• NM_001619.5:c.1370_1371delACinsTA
• GRK2 p.Asp457Val

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PP2 PP3

The NM_001619.5(GRK2):​c.1370_1371delACinsTA​(p.Asp457Val) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. It is difficult to determine the true allele frequency of this variant because it is of type MNV, and the frequency of such variant types in population databases may be underestimated and unreliable. 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
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 8.61
• Publications: 0 publications found

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]

GRK2 Gene-Disease associations (from GenCC):

• Jeune syndrome

  Inheritance: AR Classification: MODERATE Submitted by: Ambry Genetics

ACMG classification

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

• PP2: Missense variant in the gene, where a lot of missense mutations are associated with disease in ClinVar. The gene has 1 curated pathogenic missense variants (we use a threshold of 10). The gene has 0 curated benign missense variants. Gene score misZ: 3.2172 (above the threshold of 3.09). Trascript score misZ: 4.1712 (above the threshold of 3.09). GenCC associations: The gene is linked to Jeune syndrome.
• PP3: No computational evidence supports a deleterious effect, but strongly conserved according to phyloP

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001619.5. 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
	GRK2	NM_001619.5	MANE Select	c.1370_1371delACinsTA	p.Asp457Val	missense	N/A	NP_001610.2	P25098

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	GRK2	ENST00000308595.10	TSL:1 MANE Select	c.1370_1371delACinsTA	p.Asp457Val	missense	N/A	ENSP00000312262.5	P25098
	GRK2	ENST00000936739.1		c.1397_1398delACinsTA	p.Asp466Val	missense	N/A	ENSP00000606798.1
	GRK2	ENST00000951317.1		c.1370_1371delACinsTA	p.Asp457Val	missense	N/A	ENSP00000621376.1

Frequencies

GnomAD3 genomes Cov.: 33

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome Cov.: 33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
PhyloP100		8.6

Splicing

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

MaxEntScan Visualizer can be used to analyze the impact of this mutation on the neighboring sequence.

Other links and lift over

hg19: chr11-67051219;