Searching across hundreds of databases
Cytohesin-2 is a member of the guanine nucleotide exchange factors for ADP ribosylation factor 1 (Arf1) and Arf6, which are small GTPases that regulate membrane traffic and actin dynamics. In this study, we first demonstrated that cytohesin-2 localized to the plasma membrane and vesicles in various subcellular compartment in hippocampal neurons by immunoelectron microscopy. Next, to understand the molecular network of cytohesin-2 in neurons, we conducted yeast two-hybrid screening of brain cDNA libraries using cytohesin-2 as bait and isolated pallidin, a component of the biogenesis of lysosome-related organelles complex 1 (BLOC-1) involved in endosomal trafficking. Pallidin interacted specifically with cytohesin-2 among cytohesin family members. Glutathione S-transferase pull-down and immunoprecipitation assays further confirmed the formation of a protein complex between cytohesin-2 and pallidin. Immunofluorescence demonstrated that cytohesin-2 and pallidin partially colocalized in various subsets of endosomes immunopositive for EEA1, syntaxin 12, and LAMP2 in hippocampal neurons. Knockdown of pallidin or cytohesin-2 reduced cytoplasmic EEA1-positive early endosomes. Furthermore, knockdown of pallidin increased the total dendritic length of cultured hippocampal neurons, which was rescued by co-expression of wild-type pallidin but not a mutant lacking the ability to interact with cytohesin-2. In contrast, knockdown of cytohesin-2 had the opposite effect on total dendritic length. The present results suggested that the interaction between pallidin and cytohesin-2 may participate in various neuronal functions such as endosomal trafficking and dendritic formation in hippocampal neurons. Cover Image for this issue: doi: 10.1111/jnc.14197.
Pubmed ID: 30151872 RIS Download
Publication data is provided by the National Library of Medicine ® and PubMed ®. Data is retrieved from PubMed ® on a weekly schedule. For terms and conditions see the National Library of Medicine Terms and Conditions.
This monoclonal targets α-Tubulin
View all literature mentionsThis polyclonal targets mouse MAP2, 927-1104 aa (NM008632)
View all literature mentionsThis monoclonal targets FLAG
View all literature mentionsThis monoclonal targets GADPH
View all literature mentionsThis monoclonal targets APC
View all literature mentionsThis polyclonal targets mouse GFAP, 335-400 aa (AF332061)
View all literature mentionsStrain Type: Not Specified This is a legacy resource.
View all literature mentionsMus musculus with name C57BL/6J from IMSR.
View all literature mentionsCell line HeLa is a Cancer cell line with a species of origin Homo sapiens
View all literature mentionsThis polyclonal targets mouse GFAP, 335-400 aa (AF332061)
View all literature mentionsMus musculus with name C57BL/6J from IMSR.
View all literature mentionsStrain Type: Not Specified This is a legacy resource.
View all literature mentionsThis monoclonal targets GADPH
View all literature mentionsThis monoclonal targets FLAG
View all literature mentionsThis monoclonal targets α-Tubulin
View all literature mentionsThis monoclonal targets APC
View all literature mentionsThis polyclonal targets mouse MAP2, 927-1104 aa (NM008632)
View all literature mentionsCell line HeLa is a Cancer cell line with a species of origin Homo sapiens
View all literature mentionsThe SciCrunch Infrastructure was developed as a cooperative data platform to be used by diverse communities in making data more FAIR.
scicrunch.org
