Annotated protein:Phosphatidylinositol-binding clathrin assembly protein (Clathrin assembly lymphoid myeloid leukemia protein) (rCALM). Gene symbol: PICALM. Taxonomy: Rattus norvegicus (Rat). Uniprot ID: O55012
antibody wiki:
SynGO gene info:SynGO data @ PICALM
Ontology domain:Cellular Component
SynGO term:extrinsic component of presynaptic endocytic zone membrane (GO:0098894)
Synapse type(s):Schaffer collateral synapse (CA3->CA1)
Parallel fibre (cerebellum -> Purkinje-cell)
Annotated paper:Yao PJ, et al. "Synaptic distribution of the endocytic accessory proteins AP180 and CALM" J Comp Neurol. 2005 Jan 3;481(1):58-69 PMID:15558718
Figure(s):figures 4, 5, 7
Annotation description:In figures 4, 5, and 7 the authors use immunogold electron microscopy to localize CALM in rat synapses. Figure 4 is synapses from CA1 neurone and figure 5 is synapses from cerebellar granule cells on Purkinje neurons. Figure 7 also uses the granule cell synapses. The immunogold labelling localizes to the pre synapse and figure 7 shows a pool on clathrin-coated vesicles.

6/12/2017 Pim
- The localization to the presynaptic endocytic zone is inferred from the following information:
1. PICALM has a well established role in clathrin coat assembly during endocytosis in non-neuronal system.
2. Next to the active zone is a (stucturally poorly defined) hotspot of SV endocytosis names the 'presynaptic endocytic zone'. Fig.4K hows localization of PICALM to a corresponding region bordering the AZ.
3. Localization among clathrin-coated SV is observed (Fig.4C,D,...)

These data suggest that (at least in part of its function lifecycle) PICALM is localized to the presynaptic endocytic zone membrane.
Evidence tracking, Biological System:Intact tissue
Evidence tracking, Protein Targeting:Antibody (detection)
Evidence tracking, Experiment Assay:Electron Microscopy
Annotator(s):Peter McPherson (ORCID:0000-0001-7806-5662)
Lab:Department of Neurology and Neurosurgery, Montreal Neurological Institute, McGill University, Montreal, QC H3A 2B4, Canada
SynGO annotation ID:1693
Dataset release (version):20231201
View annotation as GO-CAM model:Gene Ontology