Annotated protein:Calpain-1 catalytic subunit (EC 3.4.22.52) (Calcium-activated neutral proteinase 1) (CANP 1) (Calpain mu-type) (Calpain-1 large subunit) (Micromolar-calpain) (muCANP). Gene symbol: CAPN1. Taxonomy: Rattus norvegicus (Rat). Uniprot ID: P97571
antibody wiki:
SynGO gene info:SynGO data @ CAPN1
Ontology domain:Biological Process
SynGO term:protein catabolic process at postsynapse (GO:0140249)
Synapse type(s):cerebral cortex
Annotated paper:Wang Y, et al. "Distinct roles for mu-calpain and m-calpain in synaptic NMDAR-mediated neuroprotection and extrasynaptic NMDAR-mediated neurodegeneration" J Neurosci. 2013 Nov 27;33(48):18880-92 PMID:24285894
Figure(s):Figure 2, 6, 8
Annotation description:Figure 2: Synaptic NMDAR-dependent calpain activation degrades PHLPP1 and activates Akt and ERK1/2 pathway. (rat brain P2 fraction, purified μ-calpain = CAPN1, calpain 1)

Figure 6: A μ-calpain-specific inhibitor blocks synaptic NMDAR-induced PHLPP1 degradation but not extrasynaptic NMDAR induced neurotoxicity.

Figure 8: μ-calpain but not m-calpain (CAPN2, calpain 2) is recruited to synaptic NMDAR complex following synaptic NMDAR activation.
Evidence tracking, Biological System:Cultured neurons
Evidence tracking, Protein Targeting:Over-expression
Antagonist / agonist
Evidence tracking, Experiment Assay:Western blot
Annotator(s):Frank Koopmans (ORCID:0000-0002-4973-5732)
Guus Smit (ORCID:0000-0002-2286-1587)
Matthijs Verhage (ORCID:0000-0002-2514-0216)
Lab:Department of Functional Genomics, Department of Molecular and Cellular Neurobiology, Center for Neurogenomics and Cognitive Research, Vrije Universiteit Amsterdam, 1081 HV Amsterdam, The Netherlands
SynGO annotation ID:4738
Dataset release (version):20231201
View annotation as GO-CAM model:Gene Ontology