title: Procollagen export from the endoplasmic reticulum.
abstract: Collagens are secreted into the extracellular space where they assemble into a large complex protein network to form basement membrane and extracellular matrix. Collagens are therefore essential for cell attachment, tissue organization and the overall survival of all multicellular organisms. Collagens are synthesized in the endoplasmic reticulum (ER) but they are too big to fit into a conventional coat protein complex II (COPII) transport carrier of 60-90 nm average diameter. How are these molecules exported from the ER and then transported along the secretory pathway? We describe here the involvement of special packing machinery composed of hetero oligomers of transport and Golgi organization 1 (TANGO1) and cutaneous T-cell lymphoma-associated antigen 5 (cTAGE5) in the export of procollagen VII from the ER.
authors.affiliation: *Cell and Developmental Biology Programme, Centre for Genomic Regulation (CRG), Doctor Aiguader 88, 08003 Barcelona, Spain.
authors.forename: Vivek
authors.initials: V
authors.lastname: Malhotra
authors.affiliation: *Cell and Developmental Biology Programme, Centre for Genomic Regulation (CRG), Doctor Aiguader 88, 08003 Barcelona, Spain.
authors.forename: Patrik
authors.initials: P
authors.lastname: Erlmann
authors.affiliation: *Cell and Developmental Biology Programme, Centre for Genomic Regulation (CRG), Doctor Aiguader 88, 08003 Barcelona, Spain.
authors.forename: Cristina
authors.initials: C
authors.lastname: Nogueira
mesh_terms: D000818:Animals; D051784:Aryl Hydrocarbon Receptor Nuclear Translocator / Q000378:metabolism; D004721:Endoplasmic Reticulum / Q000378:metabolism*; D006801:Humans; D008561:Membrane Fusion; D011347:Procollagen / Q000378:metabolism*; D021381:Protein Transport
chemical_list: D011347:Procollagen; D051784:Aryl Hydrocarbon Receptor Nuclear Translocator