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DDG2P

Gene: GRIN1

Green List (high evidence)
GRIN1 (glutamate ionotropic receptor NMDA type subunit 1)
EnsemblGeneIds (GRCh38): ENSG00000176884
EnsemblGeneIds (GRCh37): ENSG00000176884
OMIM: 138249, Gene2Phenotype
GRIN1 is in 6 panels

3 reviews

Achchuthan Shanmugasundram (Genomics England Curator)

Green List (high evidence)

The DDG2P confidence category, allelic requirement and molecular mechanism for GRIN1-related epileptic encephalopathy are definitive, monoallelic_autosomal and undetermined (PMIDs: 23934111, 25864721, 26933583, 27164704, 28228639, 28389307, 29194067, 29365063, 30355546, 31176596, 33062288, 33403508, 34227748, 34413877, 34884460, 35393335). More details can be found in https://www.ebi.ac.uk/gene2phenotype/lgd/G2P01109. The DDG2P confidence category, allelic requirement and molecular mechanism for GRIN1-related neurodevelopmental disorder with or without hyperkinetic movements and seizures are definitive, biallelic_autosomal and loss of function (PMIDs: 26350515, 27164704, 28051072, 34611970). More details can be found in https://www.ebi.ac.uk/gene2phenotype/lgd/G2P03206.
Created: 13 Feb 2026, 9:25 p.m. | Last Modified: 13 Feb 2026, 9:25 p.m.
Panel Version: 6.17
The DDG2P confidence category for the disease GRIN1-associated Neurodevelopmental disorder with or without hyperkinetic movements and seizures, autosomal recessive, OMIM:617820 is definitive. The allelic requirement and mutation consequence are biallelic_autosomal and absent gene product (PMIDs: 28051072;26350515;34611970;27164704). The DDG2P confidence category for the disease EPILEPTIC ENCEPHALOPATHY is definitive. The allelic requirement and mutation consequence are monoallelic_autosomal and altered gene product structure (PMIDs: 35393335;27164704;23934111).
Created: 4 Oct 2023, 5:08 p.m. | Last Modified: 4 Oct 2023, 5:08 p.m.
Panel Version: 3.12

Mode of inheritance
BOTH monoallelic and biallelic, autosomal or pseudoautosomal

Phenotypes
GRIN1-related neurodevelopmental disorder with or without hyperkinetic movements and seizures; MONDO:0060629; GRIN1-associated Neurodevelopmental disorder with or without hyperkinetic movements and seizures, autosomal recessive, OMIM:617820; OMIM:617820.0; EPILEPTIC ENCEPHALOPATHY; GRIN1-related epileptic encephalopathy; OMIM:614254.0; MONDO:0013655

Publications

Created: 4 Oct 2023, 5:08 p.m.
Last Modified: 4 Oct 2023, 5:08 p.m.
Panel version: 6.17

Sarah Leigh (Genomics England Curator)

Comment on mode of inheritance: The MOI could be changed to "both mono and biallelic" in order to agree with the MOI listed in OMIM:138249, however, this was not done on this panel, as the phenotype that is confirmed on Gen2Phen is epileptic encephalopathy (https://www.ebi.ac.uk/gene2phenotype/gfd?dbID=1357) and only one biallelic case has been reported with this phenotype.
Created: 14 Sep 2021, 5:18 p.m. | Last Modified: 14 Sep 2021, 5:20 p.m.
Panel Version: 2.44
Created: 14 Sep 2021, 5:18 p.m.
Last Modified: 14 Sep 2021, 5:20 p.m.
Panel version: 2.43

Rebecca Foulger (Genomics England curator)

I don't know

Original DDG2P rating: confirmed. DDG2P mode of pathogenicity: all missense/in frame
Created: 19 Nov 2018, 11:30 a.m.
Created: 19 Nov 2018, 11:30 a.m.

Panel version: 0.2

Details

Mode of Inheritance
BOTH monoallelic and biallelic, autosomal or pseudoautosomal
Sources
  • DD-Gene2Phenotype
  • Expert Review Green
Phenotypes
  • Neurodevelopmental disorder with or without hyperkinetic movements and seizures, autosomal dominant OMIM:614254
  • intellectual disability, autosomal dominant 8 MONDO:0013655
OMIM
138249
Clinvar variants
Variants in GRIN1
Penetrance
None
Publications
Panels with this gene

History Filter Activity

16 Feb 2026, Gel status: 3

Set mode of pathogenicity

Achchuthan Shanmugasundram (Genomics England Curator)

Mode of pathogenicity for gene: GRIN1 was changed from Other - please provide details in the comments to None

4 Oct 2023, Gel status: 3

Set mode of inheritance, Set publications

Achchuthan Shanmugasundram (Genomics England Curator)

Mode of inheritance for gene GRIN1 was changed from MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown to BOTH monoallelic and biallelic, autosomal or pseudoautosomal Publications for gene: GRIN1 were updated from 23934111; 27164704 to 27164704; 35393335; 34611970; 23934111; 26350515; 28051072

14 Sep 2021, Gel status: 3

Set Phenotypes

Sarah Leigh (Genomics England Curator)

Phenotypes for gene: GRIN1 were changed from EPILEPTIC ENCEPHALOPATHY to Neurodevelopmental disorder with or without hyperkinetic movements and seizures, autosomal dominant OMIM:614254; intellectual disability, autosomal dominant 8 MONDO:0013655

14 Sep 2021, Gel status: 3

Set mode of inheritance

Sarah Leigh (Genomics England Curator)

Mode of inheritance for gene: GRIN1 was changed from MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown to MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown

29 Jan 2019, Gel status: 4

Panel promoted to version 1.0

Rebecca Foulger (Genomics England curator)

Rebecca Foulger: Original DDG2P rating: confirm

19 Nov 2018, Gel status: 4

Created, Added New Source, Set mode of inheritance, Set publications, Set Phenotypes, Set mode of pathogenicity

Rebecca Foulger (Genomics England curator)

gene: GRIN1 was added gene: GRIN1 was added to DDG2P. Sources: Expert Review Green,DD-Gene2Phenotype Mode of inheritance for gene: GRIN1 was set to MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown Publications for gene: GRIN1 were set to 23934111; 27164704 Phenotypes for gene: GRIN1 were set to EPILEPTIC ENCEPHALOPATHY Mode of pathogenicity for gene: GRIN1 was set to Other - please provide details in the comments