Synaptoporin, a novel putative channel protein of synaptic vesicles.
By homology screening of a rat brain library, we have isolated cDNAs that encode a novel member of the synaptophysin/connexin channel protein superfamily. The deduced protein, named synaptoporin, displays 58% amino acid identity to synaptophysin, with highly conserved transmembrane segments, but a divergent cytoplasmic tail. Northern blot analysis and PCR amplification of RNA from different rat tissues indicate expression of synaptoporin transcripts in the CNS. Antibodies against a synthetic peptide or a fusion construct encompassing the cytoplasmic tail region of synaptoporin detect a polypeptide of 37 kd that copurifies with small synaptic vesicles. Our data suggest the existence of a family of vesicular channel proteins whose members may be differently distributed among synaptic vesicle subpopulations.[1]References
- Synaptoporin, a novel putative channel protein of synaptic vesicles. Knaus, P., Marquèze-Pouey, B., Scherer, H., Betz, H. Neuron (1990) [Pubmed]
Annotations and hyperlinks in this abstract are from individual authors of WikiGenes or automatically generated by the WikiGenes Data Mining Engine. The abstract is from MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.About WikiGenesOpen Access LicencePrivacy PolicyTerms of Useapsburg
