Title : Insight into the role of dynamics in the conformational switch of the small GTP-binding protein Arf1.

Pub. Date : 2010 Dec 3

PMID : 20861011






7 Functional Relationships(s)
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1 Combined with biochemical analysis, these data lead to a model of Arf1 activation, in which opening of its N-terminal helix first translocates Arf1-GDP to membranes, where it is then secured by a register shift of the interswitch beta-strands, before GDP is eventually exchanged for GTP. Guanosine Diphosphate ADP ribosylation factor 1 Homo sapiens
2 Combined with biochemical analysis, these data lead to a model of Arf1 activation, in which opening of its N-terminal helix first translocates Arf1-GDP to membranes, where it is then secured by a register shift of the interswitch beta-strands, before GDP is eventually exchanged for GTP. Guanosine Diphosphate ADP ribosylation factor 1 Homo sapiens
3 Combined with biochemical analysis, these data lead to a model of Arf1 activation, in which opening of its N-terminal helix first translocates Arf1-GDP to membranes, where it is then secured by a register shift of the interswitch beta-strands, before GDP is eventually exchanged for GTP. Guanosine Diphosphate ADP ribosylation factor 1 Homo sapiens
4 We first completed the assignment of Delta17Arf1 bound to GDP, GTP, and GTPgammaS and established that NMR data are fully consistent with the crystal structures of Arf1-GDP and Delta17Arf1-GTP. Guanosine Diphosphate ADP ribosylation factor 1 Homo sapiens
5 We first completed the assignment of Delta17Arf1 bound to GDP, GTP, and GTPgammaS and established that NMR data are fully consistent with the crystal structures of Arf1-GDP and Delta17Arf1-GTP. Guanosine Diphosphate ADP ribosylation factor 1 Homo sapiens
6 We first completed the assignment of Delta17Arf1 bound to GDP, GTP, and GTPgammaS and established that NMR data are fully consistent with the crystal structures of Arf1-GDP and Delta17Arf1-GTP. Guanosine Diphosphate ADP ribosylation factor 1 Homo sapiens
7 Altogether, the NMR data bring insight into how that membrane-bound Arf1-GDP, which is mimicked by the truncation of the N-terminal helix, acquires internal motions that enable the toggle of the interswitch. Guanosine Diphosphate ADP ribosylation factor 1 Homo sapiens