Annotated protein:Synaptophysin (Major synaptic vesicle protein p38). Gene symbol: SYP. Taxonomy: Rattus norvegicus (Rat). Uniprot ID: P07825
antibody wiki:
SynGO gene info:SynGO data @ SYP
Ontology domain:Cellular Component
SynGO term:integral component of synaptic vesicle membrane (GO:0030285)
Synapse type(s):brain
spinal cord
retina
Annotated paper:Jahn R, et al. "A 38,000-dalton membrane protein (p38) present in synaptic vesicles" Proc Natl Acad Sci U S A. 1985 Jun;82(12):4137-41 PMID:3923488
Figure(s):Fig. 1-6; Table 1-2
Annotation description:In this reference paper, Jahn et al. investigate the distribution of synaptophysin by subcellular fractionation, immunoblotting and immunostaining of coronal sections of rat brain. Additionally, solubilization studies (with Triton X-114 phase separation) and controlled proteolysis of intact and solubilized synaptic vesicles reveal that synaptophysin is an integral vesicular protein.

2/9/2017 Pim
- Based on the known transmembrane topology of the protein, the "integral component of ... membrane" term was chosen.
Evidence tracking, Biological System:Intact tissue
Cell-free system
Evidence tracking, Protein Targeting:Antibody (detection)
Evidence tracking, Experiment Assay:Microscopy (generic)
Western blot
Biochemical fractionation (generic)
Annotator(s):Momchil Ninov (ORCID:0000-0002-0808-7003)
Mahdokht Kohansalnodehi (ORCID:0000-0002-3898-5197)
Reinhard Jahn (ORCID:0000-0003-1542-3498)
Lab:Department of Neurobiology, Max Planck Institute for Biophysical Chemistry, 37077 Göttingen, Germany
Additional literature:The data confirms the findings from the primary ref paper: by means of subcellular fractionation combined with immunoblotting and mass spectrometry, Takamori et al show that synaptophysin is the most abundant SV protein and that it's highly enriched in CPG-isolated SVs (Fig. 1B, Table 1 and Fig Suppl. 3) @ PMID:17110340

Fig. 9a-b shows images from immunoelectron microscopy of sections from murine cerebrum and rat synaptosomes: the labelling shows specific binding of anti-synaptophysin I antibody to presynaptic vesicles. @ PMID:3924408
SynGO annotation ID:1136
Dataset release (version):20231201
View annotation as GO-CAM model:Gene Ontology