title: Arabidopsis thaliana plastoglobule-associated fibrillin 1a interacts with fibrillin 1b in vivo.
abstract: Plant fibrillins are a well-conserved protein family found in the plastids of all photosynthetic organisms, where they perform a wide range of functions. A number of these proteins have been suggested to be involved in the maintenance of thylakoids and the formation of plastoglobules, preventing their coalescence and favoring their clustering via an as-yet unidentified cross-linking mechanism. In this work we show that two members of this group, namely fibrillin 1a and 1b, interact with each other via a head-to-tail mechanism, thus raising the possibility that they form homo- or hetero-oligomers and providing a mechanism to understand the function of these proteins.
authors.affiliation: Instituto de Bioquímica Vegetal y Fotosíntesis, CSIC-US, Avda Américo Vespucio, 49, 41092 Sevilla, Spain.
authors.forename: Francisco Manuel
authors.initials: FM
authors.lastname: Gámez-Arjona
authors.affiliation: Instituto de Bioquímica Vegetal y Fotosíntesis, CSIC-US, Avda Américo Vespucio, 49, 41092 Sevilla, Spain.
authors.forename: Juan Carlos
authors.initials: JC
authors.lastname: de la Concepción
authors.affiliation: Instituto de Bioquímica Vegetal y Fotosíntesis, CSIC-US, Avda Américo Vespucio, 49, 41092 Sevilla, Spain.
authors.forename: Sandy
authors.initials: S
authors.lastname: Raynaud
authors.affiliation: Instituto de Bioquímica Vegetal y Fotosíntesis, CSIC-US, Avda Américo Vespucio, 49, 41092 Sevilla, Spain. Electronic address: angel.merida@csic.es.
authors.forename: Ángel
authors.initials: Á
authors.lastname: Mérida
mesh_terms: D017360:Arabidopsis / Q000166:cytology* / Q000378:metabolism; D029681:Arabidopsis Proteins / Q000737:chemistry / Q000378:metabolism*; D002736:Chloroplasts / Q000378:metabolism*; D000071837:Fibrillins; D008074:Lipoproteins / Q000378:metabolism*; D008840:Microfilament Proteins / Q000737:chemistry / Q000378:metabolism*; D011485:Protein Binding; D017434:Protein Structure, Tertiary; D020798:Two-Hybrid System Techniques
chemical_list: D029681:Arabidopsis Proteins; D000071837:Fibrillins; D008074:Lipoproteins; D008840:Microfilament Proteins
keywords: Arabidopsis; Fibrillin; Plastoglobule; Protein–protein interaction