rs387906635

Variant names:

• chr9-137162710-G-A
• rs387906635
• NM_007327.4:c.1984G>A

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2 PP2 PP5

The NM_007327.4(GRIN1):​c.1984G>A​(p.Glu662Lys) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Pathogenic (no stars).

• Frequency: Genomes: not found (cov: 33)
• Consequence: GRIN1 NM_007327.4 missense
• Clinical Significance: Pathogenic no assertion criteria provided P:1
• Conservation: PhyloP100: 9.55

Genes affected

GRIN1 (HGNC:4584): (glutamate ionotropic receptor NMDA type subunit 1) The protein encoded by this gene is a critical subunit of N-methyl-D-aspartate receptors, members of the glutamate receptor channel superfamily which are heteromeric protein complexes with multiple subunits arranged to form a ligand-gated ion channel. These subunits play a key role in the plasticity of synapses, which is believed to underlie memory and learning. Cell-specific factors are thought to control expression of different isoforms, possibly contributing to the functional diversity of the subunits. Alternatively spliced transcript variants have been described. [provided by RefSeq, Jul 2008]

ACMG classification

Verdict is Uncertain_significance. Variant got 4 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP2: Missense variant in the GRIN1 gene, where missense mutations are typically associated with disease (based on misZ statistic). The gene has 75 curated pathogenic missense variants (we use a threshold of 10). The gene has 49 curated benign missense variants. Gene score misZ: 6.2157 (above the threshold of 3.09). Trascript score misZ: 6.6419 (above the threshold of 3.09). GenCC associations: The gene is linked to developmental and epileptic encephalopathy 101, neurodevelopmental disorder with or without hyperkinetic movements and seizures, autosomal recessive, autosomal dominant non-syndromic intellectual disability, complex neurodevelopmental disorder, intellectual disability, autosomal dominant 8.
• PP5: Variant 9-137162710-G-A is Pathogenic according to our data. Variant chr9-137162710-G-A is described in ClinVar as [Pathogenic]. Clinvar id is 29725.Status of the report is no_assertion_criteria_provided, 0 stars. Variant chr9-137162710-G-A is described in Lovd as [Pathogenic].

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
GRIN1	NM_007327.4	c.1984G>A	p.Glu662Lys	missense_variant	Exon 14 of 20	ENST00000371561.8	NP_015566.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
GRIN1	ENST00000371561.8	c.1984G>A	p.Glu662Lys	missense_variant	Exon 14 of 20	1	NM_007327.4	ENSP00000360616.3

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 36

GnomAD4 genome Cov.: 33

ClinVar

Significance: Pathogenic

Submissions summary: Pathogenic:1

Revision: no assertion criteria provided

Submissions by phenotype

Intellectual disability, autosomal dominant 8 Pathogenic:1

Mar 11, 2011

OMIM

Significance: Pathogenic

Review Status: no assertion criteria provided

Collection Method: literature only

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.94
BayesDel_addAF	Uncertain	0.054	T
BayesDel_noAF	Benign	-0.16
CADD	Pathogenic	33
DANN	Uncertain	1.0
DEOGEN2	Uncertain	0.46	T;.;.;T;.;.;.
Eigen	Uncertain	0.39
Eigen_PC	Uncertain	0.40
FATHMM_MKL	Uncertain	0.97	D
LIST_S2	Pathogenic	0.99	D;D;D;D;D;D;D
M_CAP	Uncertain	0.13	D
MetaRNN	Uncertain	0.58	D;D;D;D;D;D;D
MetaSVM	Benign	-1.1	T
MutationAssessor	Benign	1.0	L;L;.;.;.;L;.
PrimateAI	Pathogenic	0.88	D
PROVEAN	Benign	-1.1	N;N;N;N;N;N;N
REVEL	Benign	0.28
Sift	Benign	0.34	T;T;T;T;T;T;T
Sift4G	Benign	0.48	T;T;T;T;T;T;T
Polyphen		1.0	D;D;.;.;.;D;.
Vest4		0.62
MutPred		0.54		Gain of ubiquitination at E662 (P = 0.0177);Gain of ubiquitination at E662 (P = 0.0177);.;.;.;Gain of ubiquitination at E662 (P = 0.0177);.;
MVP		0.87
MPC		3.5
ClinPred		0.97	D
GERP RS		3.5
Varity_R		0.46
gMVP		0.94

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

LitVar

Other links and lift over

dbSNP: rs387906635; hg19: chr9-140057162;