Annotated protein:Sodium/calcium exchanger 3 (Na(+)/Ca(2+)-exchange protein 3) (Solute carrier family 8 member 3). Gene symbol: SLC8A3. Taxonomy: Rattus norvegicus (Rat). Uniprot ID: P70549
antibody wiki:
SynGO gene info:SynGO data @ SLC8A3
Ontology domain:Cellular Component
SynGO term:integral component of postsynaptic membrane (GO:0099055)
Synapse type(s):hippocampus
cerebral cortex
Annotated paper:Minelli A, et al. "Cellular and subcellular localization of Na+-Ca2+ exchanger protein isoforms, NCX1, NCX2, and NCX3 in cerebral cortex and hippocampus of adult rat" Cell Calcium. 2007 Mar;41(3):221-34 PMID:16914199
Figure(s):Figure 6 and Table 1
Annotation description:Ultrastructural localization of NCX3 in the cerebral cortex and hippocampus. Preembedding immunoperoxidase and silver-enhanced immunogold procedures were used.
Figure 6b: in CA3 stratum radiatum, several dendritic profiles contain clumps of immunoreactivity associated to microtubules, mitochondria and to plasmalemma.
6c: immunogold labelling associated with the plasma membrane near the postsynaptic density in a dendrite.
6d,e: labelled dendritic spines.

Table 1 presents a quantification of the immunolabeling, and shows that the majority of NCX3 profiles the cerebral cortex and in hippocampus are in dendrites and spines.

Antibody: 'a rabbit polyclonal IgG antibody generously provided by Dr.
K.D. Philipson'. Figure 1 demonstrated antibody specificity in western blotting of hippocampus, heart and cortex homogenates in comparison with a recombinant protein produced in HEK cells. Strong WB signals with little cross-reactivity are a good indication for the antibody specificity.
Evidence tracking, Biological System:Intact tissue
Evidence tracking, Protein Targeting:Antibody (detection)
Evidence tracking, Experiment Assay:Electron Microscopy
Annotator(s):Noa Lipstein (ORCID:0000-0002-0755-5899)
Cordelia Imig (ORCID:0000-0001-7351-8706)
Vincent O'connor (ORCID:0000-0003-3185-5709)
Nils Brose (ORCID:0000-0003-0938-8534)
Lab:Department of Molecular Neurobiology, Max Planck Institute of Experimental Medicine, 37075 Göttingen, Germany
SynGO annotation ID:843
Dataset release (version):20231201
View annotation as GO-CAM model:Gene Ontology