References
Query Results -- Details
MGI Accession ID: MGI:78713
J Number: J:31211
Other Accession IDs:
Title: Impaired motor coordination correlates with persistent multiple climbing fiber innervation in PKC gamma mutant mice.
Authors: Chen C; Kano M; Abeliovich A; Chen L; Bao S; Kim JJ; Hashimoto K; Thompson RF; Tonegawa S
Journal: Cell
Volume: 83
Issue: 7
Date: 1995 Dec 29
Year: 1995
Pages: 1233-42
Review Status: Peer Reviewed
Abstract:
It is generally believed that a smooth execution of a compound movement, or motor coordination, requires learning of component movements as well as experience-based refinement of the motor program as a whole. PKC gamma mutant mice display impaired motor coordination but intact eyeblink conditioning, a form of component movement learning. Cerebellar long-term depression, a putative cellular mechanism for component motor learning, is also unimpaired. Thus, PKC gamma mutant mice are defective in refinement of the motor program. In the accompanying paper, we demonstrate that innervation of multiple climbing fibers onto Purkinje cells persists in adulthood in these mutant mice. We propose that this defective elimination of surplus climbing fibers underlies motor discoordination.
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