3-14505625-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_001080423.4(GRIP2):c.2563C>T(p.Pro855Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000686 in 1,457,850 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 10/13 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 6.9e-7 (0 hom.)
• Consequence: GRIP2 NM_001080423.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 1.17

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 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.24588525).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
GRIP2	NM_001080423.4	c.2563C>T	p.Pro855Ser	missense_variant	20/24	ENST00000621039.5

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
GRIP2	ENST00000621039.5	c.2563C>T	p.Pro855Ser	missense_variant	20/24	1	NM_001080423.4	P2
GRIP2	ENST00000619221.4	c.2854C>T	p.Pro952Ser	missense_variant	21/25	5
GRIP2	ENST00000637182.1	c.2578C>T	p.Pro860Ser	missense_variant	20/24	5		A1
GRIP2	ENST00000430219.2	c.940C>T	p.Pro314Ser	missense_variant, NMD_transcript_variant	8/12	2

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 6.86e-7 AC: 1 AN: 1457850 Hom.: 0 Cov.: 31 AF XY: 0.00000138 AC XY: 1 AN XY: 724780

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: 0.0000188

Gnomad4 NFE exome AF: 0.00

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

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

Nov 30, 2022

The c.2854C>T (p.P952S) alteration is located in exon 21 (coding exon 21) of the GRIP2 gene. This alteration results from a C to T substitution at nucleotide position 2854, causing the proline (P) at amino acid position 952 to be replaced by a serine (S). 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	0.092
BayesDel_addAF	Benign	-0.010	T
BayesDel_noAF	Benign	-0.25
Cadd	Benign	15
Dann	Benign	0.73
DEOGEN2	Benign	0.020	T;.;.
FATHMM_MKL	Benign	0.57	D
LIST_S2	Benign	0.76	T;T;T
MetaRNN	Benign	0.25	T;T;T
MutationAssessor	Benign	1.8	L;.;.
PrimateAI	Benign	0.37	T
Sift4G	Benign	0.72	T;T;.
Polyphen		0.0	B;.;.
Vest4		0.32
MVP		0.73
GERP RS		2.2
Varity_R		0.10
gMVP		0.32

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: chr3-14547133;