Annotated protein:Protocadherin-8 (Activity-regulated cadherin-like protein) (Arcadlin). Gene symbol: PCDH8. Taxonomy: Rattus norvegicus (Rat). Uniprot ID: D3ZE55
antibody wiki:
SynGO gene info:SynGO data @ PCDH8
Ontology domain:Cellular Component
SynGO term:synapse (GO:0045202)
Synapse type(s):hippocampus
Annotated paper:Yamagata K, et al. "Arcadlin is a neural activity-regulated cadherin involved in long term potentiation" J Biol Chem. 1999 Jul 2;274(27):19473-1979 PMID:10383464
Figure(s):Fig.6
Annotation description:Fig.6: "Regulation and synaptic localization of Arcadlin protein"
Literal: "Arcadlin is naturally expressed in hippocampal neurons and localized at both soma and synapses in association with the marker synaptophysin."

The protein seems postsynaptic based on report of dendritic localization, but I chose the safer term 'synapse (GO:0045202)'.
Evidence tracking, Biological System:Cultured neurons
Evidence tracking, Protein Targeting:Antibody (detection)
Evidence tracking, Experiment Assay:Confocal
Annotator(s):Pim van Nierop (ORCID:0000-0003-0593-3443)
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:2366
Dataset release (version):20231201
View annotation as GO-CAM model:Gene Ontology