http://purl.uniprot.org/citations/16126836 | http://www.w3.org/1999/02/22-rdf-syntax-ns#type | http://purl.uniprot.org/core/Journal_Citation |
http://purl.uniprot.org/citations/16126836 | http://www.w3.org/1999/02/22-rdf-syntax-ns#type | http://purl.uniprot.org/core/Journal_Citation |
http://purl.uniprot.org/citations/16126836 | http://www.w3.org/2000/01/rdf-schema#comment | "Cell-to-cell communication in plants involves the trafficking of macromolecules through specialized intercellular organelles, termed plasmodesmata. This exchange of proteins and RNA is likely regulated, and a role for protein phosphorylation has been implicated, but specific components remain to be identified. Here, we describe the molecular characterization of a plasmodesmal-associated protein kinase (PAPK). A 34-kD protein, isolated from a plasmodesmal preparation, exhibits calcium-independent kinase activity and displays substrate specificity in that it recognizes a subset of viral and endogenous non-cell-autonomous proteins. This PAPK specifically phosphorylates the C-terminal residues of tobacco mosaic virus movement protein (TMV MP); this posttranslational modification has been shown to affect MP function. Molecular analysis of purified protein established that tobacco (Nicotiana tabacum) PAPK is a member of the casein kinase I family. Subcellular localization studies identified a possible Arabidopsis thaliana PAPK homolog, PAPK1. TMV MP and PAPK1 are colocalized within cross-walls in a pattern consistent with targeting to plasmodesmata. Moreover, Arabidopsis PAPK1 also phosphorylates TMV MP in vitro at its C terminus. These results strongly suggest that Arabidopsis PAPK1 is a close homolog of tobacco PAPK. Thus, PAPK1 represents a novel plant protein kinase that is targeted to plasmodesmata and may play a regulatory role in macromolecular trafficking between plant cells."xsd:string |
http://purl.uniprot.org/citations/16126836 | http://purl.org/dc/terms/identifier | "doi:10.1105/tpc.105.034330"xsd:string |
http://purl.uniprot.org/citations/16126836 | http://purl.org/dc/terms/identifier | "doi:10.1105/tpc.105.034330"xsd:string |
http://purl.uniprot.org/citations/16126836 | http://purl.uniprot.org/core/author | "Ben-Nissan G."xsd:string |
http://purl.uniprot.org/citations/16126836 | http://purl.uniprot.org/core/author | "Ben-Nissan G."xsd:string |
http://purl.uniprot.org/citations/16126836 | http://purl.uniprot.org/core/author | "Lucas W.J."xsd:string |
http://purl.uniprot.org/citations/16126836 | http://purl.uniprot.org/core/author | "Lucas W.J."xsd:string |
http://purl.uniprot.org/citations/16126836 | http://purl.uniprot.org/core/author | "Kim D.-J."xsd:string |
http://purl.uniprot.org/citations/16126836 | http://purl.uniprot.org/core/author | "Kim D.-J."xsd:string |
http://purl.uniprot.org/citations/16126836 | http://purl.uniprot.org/core/author | "Lee J.-Y."xsd:string |
http://purl.uniprot.org/citations/16126836 | http://purl.uniprot.org/core/author | "Lee J.-Y."xsd:string |
http://purl.uniprot.org/citations/16126836 | http://purl.uniprot.org/core/author | "Taoka K."xsd:string |
http://purl.uniprot.org/citations/16126836 | http://purl.uniprot.org/core/author | "Taoka K."xsd:string |
http://purl.uniprot.org/citations/16126836 | http://purl.uniprot.org/core/author | "Yoo B.-C."xsd:string |
http://purl.uniprot.org/citations/16126836 | http://purl.uniprot.org/core/author | "Yoo B.-C."xsd:string |
http://purl.uniprot.org/citations/16126836 | http://purl.uniprot.org/core/date | "2005"xsd:gYear |
http://purl.uniprot.org/citations/16126836 | http://purl.uniprot.org/core/date | "2005"xsd:gYear |
http://purl.uniprot.org/citations/16126836 | http://purl.uniprot.org/core/name | "Plant Cell"xsd:string |
http://purl.uniprot.org/citations/16126836 | http://purl.uniprot.org/core/name | "Plant Cell"xsd:string |
http://purl.uniprot.org/citations/16126836 | http://purl.uniprot.org/core/pages | "2817-2831"xsd:string |
http://purl.uniprot.org/citations/16126836 | http://purl.uniprot.org/core/pages | "2817-2831"xsd:string |
http://purl.uniprot.org/citations/16126836 | http://purl.uniprot.org/core/title | "Plasmodesmal-associated protein kinase in tobacco and Arabidopsis recognizes a subset of non-cell-autonomous proteins."xsd:string |
http://purl.uniprot.org/citations/16126836 | http://purl.uniprot.org/core/title | "Plasmodesmal-associated protein kinase in tobacco and Arabidopsis recognizes a subset of non-cell-autonomous proteins."xsd:string |