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The Mouse Adult Gross Anatomy Ontology and Mammalian Phenotype Ontology are downloaded weekly from the Mouse Genome Informatics databases at Jackson Laboratories ( For more information about these ontologies, see the MGI Publications Page at

Term:abnormal spinal cord grey matter morphology
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Accession:MP:0008503 term browser browse the term
Definition:any structural anomaly of the ridge-shaped grey matter of the spinal cord that extends longitudinally through the center of each half of the spinal cord, and are largely or entirely composed of nerve cell bodies and their dendrites and some supportive tissue
Synonyms:exact_synonym: abnormal spinal cord gray columns morphology;   abnormal spinal cord gray matter morphology;   abnormal spinal cord grey columns morphology
 related_synonym: abnormal spinal cord mantle layer morphology
 xref: MA:0000002

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decreased motor neuron number term browser
Symbol Object Name Evidence Notes Source PubMed Reference(s) RGD Reference(s) Position
G Atm ATM serine/threonine kinase IMP DNA:deletion:exon: RGD PMID:28007901 RGD:12879399 NCBI chr 8:53,828,741...53,932,773
Ensembl chr 8:53,831,093...53,932,437
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G Atmem1Kyo ATM serine/threonine kinase; ZFN induced mutant 1, Kyo IMP RGD PMID:28007901 RGD:12879399

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  mammalian phenotype 5380
    nervous system phenotype 362
      abnormal nervous system morphology 209
        abnormal spinal cord morphology 13
          abnormal spinal cord grey matter morphology 13
            abnormal motor neuron morphology + 13
            abnormal spinal cord dorsal horn morphology 0
            abnormal spinal cord interneuron morphology + 0
            abnormal spinal cord ventral horn morphology + 0
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