TY - JOUR
T1 - Domain movements of HAP2 in the cap-filament complex formation and growth process of the bacterial flagellum
AU - Maki-Yonekura, Saori
AU - Yonekura, Koji
AU - Namba, Keiichi
PY - 2003/12/23
Y1 - 2003/12/23
N2 - The cap at the growing end of the bacterial flagellum is essential for its growth, remaining stably attached while permitting the insertion of flagellin transported from the cytoplasm through the narrow central channel. We analyzed the structure of the isolated cap in its frozen hydrated state by electron cryomicroscopy. The 3D density map now shows detailed features of domains and their connections, giving reliable volumes and masses, making assignment of the domains to the amino acid sequence possible. A model of the cap-filament complex built with an atomic model of the filament allows a quantitative analysis of the cap domain movements on cap binding and rotation that promotes the efficient self assembly of flagellin during the filament growth process.
AB - The cap at the growing end of the bacterial flagellum is essential for its growth, remaining stably attached while permitting the insertion of flagellin transported from the cytoplasm through the narrow central channel. We analyzed the structure of the isolated cap in its frozen hydrated state by electron cryomicroscopy. The 3D density map now shows detailed features of domains and their connections, giving reliable volumes and masses, making assignment of the domains to the amino acid sequence possible. A model of the cap-filament complex built with an atomic model of the filament allows a quantitative analysis of the cap domain movements on cap binding and rotation that promotes the efficient self assembly of flagellin during the filament growth process.
UR - http://www.scopus.com/inward/record.url?scp=0347364643&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0347364643&partnerID=8YFLogxK
U2 - 10.1073/pnas.2534343100
DO - 10.1073/pnas.2534343100
M3 - Article
C2 - 14673116
AN - SCOPUS:0347364643
VL - 100
SP - 15528
EP - 15533
JO - Proceedings of the National Academy of Sciences of the United States of America
JF - Proceedings of the National Academy of Sciences of the United States of America
SN - 0027-8424
IS - 26
ER -