3-14494935-C-A

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2 PP3_Moderate

The NM_001080423.4(GRIP2):c.2878G>T(p.Gly960Cys) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 33)
• Consequence: GRIP2 NM_001080423.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 7.84

Genes affected

GRIP2 (HGNC:23841): (glutamate receptor interacting protein 2) Predicted to enable protein C-terminus binding activity. Predicted to be involved in several processes, including neurotransmitter receptor transport, endosome to postsynaptic membrane; positive regulation of AMPA glutamate receptor clustering; and positive regulation of excitatory postsynaptic potential. Predicted to act upstream of or within Notch signaling pathway; artery smooth muscle contraction; and positive regulation of blood pressure. Predicted to be located in cytoplasm; dendritic shaft; and neuron spine. Predicted to be active in glutamatergic synapse and postsynaptic density. [provided by Alliance of Genome Resources, Apr 2022]

ACMG classification

Verdict is Uncertain_significance. Variant got 4 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.905

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
GRIP2	NM_001080423.4	c.2878G>T	p.Gly960Cys	missense_variant	23/24	ENST00000621039.5

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
GRIP2	ENST00000621039.5	c.2878G>T	p.Gly960Cys	missense_variant	23/24	1	NM_001080423.4	P2
GRIP2	ENST00000619221.4	c.3169G>T	p.Gly1057Cys	missense_variant	24/25	5
GRIP2	ENST00000637182.1	c.2893G>T	p.Gly965Cys	missense_variant	23/24	5		A1
GRIP2	ENST00000430219.2	c.*538G>T		3_prime_UTR_variant, NMD_transcript_variant	11/12	2

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 33

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Oct 06, 2022

The c.3169G>T (p.G1057C) alteration is located in exon 24 (coding exon 24) of the GRIP2 gene. This alteration results from a G to T substitution at nucleotide position 3169, causing the glycine (G) at amino acid position 1057 to be replaced by a cysteine (C). 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	Pathogenic	0.78
BayesDel_addAF	Pathogenic	0.60	D
BayesDel_noAF	Pathogenic	0.63
Cadd	Pathogenic	28
Dann	Benign	0.91
DEOGEN2	Benign	0.23	T;.;.
FATHMM_MKL	Pathogenic	0.98	D
LIST_S2	Pathogenic	0.99	D;D;D
MetaRNN	Pathogenic	0.91	D;D;D
MutationAssessor	Pathogenic	4.3	H;.;.
PrimateAI	Uncertain	0.78	T
Sift4G	Pathogenic	0.0	D;D;.
Polyphen		1.0	D;.;.
Vest4		0.95
MVP		0.73
GERP RS		5.1
Varity_R		0.35
gMVP		0.74

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr3-14536443;