First Author | Shimoda Y | Year | 2012 |
Journal | Neurosci Lett | Volume | 510 |
Issue | 2 | Pages | 148-53 |
PubMed ID | 22285261 | Mgi Jnum | J:182298 |
Mgi Id | MGI:5315195 | Doi | 10.1016/j.neulet.2012.01.026 |
Citation | Shimoda Y, et al. (2012) A cis-complex of NB-2/contactin-5 with amyloid precursor-like protein 1 is localized on the presynaptic membrane. Neurosci Lett 510(2):148-53 |
abstractText | NB-2/contactin-5 plays an important role in synapse formation in the developing auditory system of rodents. In this study, to further elucidate the molecular role of NB-2 in synapse formation, we examined the interaction between NB-2 and amyloid precursor-like protein 1 (APLP1), as well as their possible co-localization at the synapse. Pull-down assays and cell surface binding assays demonstrated that NB-2 interacts with APLP1. Furthermore, the protein expression profile of APLP1 in western blots was similar to that of NB-2, and localization of APLP1 mRNA partially overlapped that of NB-2 mRNA. In cultured hippocampal neurons, immunofluorescence signals for both NB-2 and APLP1 overlapped with synapsin, a presynaptic marker. Biochemical analysis showed that both NB-2 and APLP1 were enriched in the presynaptic fraction. These results indicate that NB-2 forms a cis-complex with APLP1 on the presynaptic membrane. |