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GRIN1

glutamate ionotropic receptor NMDA type subunit 1

HCNC Approved Symbol
GRIN1 (HGNC:4584)
Genomic Coordinates
9:137,139,154 - 137,168,756 (9q34.3)
Synonyms
GluN1, NR1, NMDAR1
Disease Associations
This gene is associated with the following 3 diseases in OMIM.
View More Disease Info
Disease NameOMIM IDInheritance
Developmental and epileptic encephalopathy 101
619814AR
Neurodevelopmental disorder with or without hyperkinetic movements and seizures, autosomal dominant
614254AD
Neurodevelopmental disorder with or without hyperkinetic movements and seizures, autosomal recessive
617820AR

Diagnosed Cases

13Patients

In total, 13 patients were diagnosed with a variant in the GRIN1 gene.

Frequently observed phenotypes

(Top 5 only, Patient count*)
*% of total patients presenting each phenotype is shown in parentheses.

Global developmental delay
 6 (46.2%)
Hypotonia
 5 (38.5%)
Intellectual disability
 4 (30.8%)
Microcephaly
 4 (30.8%)
Encephalopathy
 3 (23.1%)