RRC ID 30376
著者 Yoshida Y, Kuroiwa H, Misumi O, Nishida K, Yagisawa F, Fujiwara T, Nanamiya H, Kawamura F, Kuroiwa T.
タイトル Isolated chloroplast division machinery can actively constrict after stretching.
ジャーナル Science
Abstract Chloroplast division involves plastid-dividing, dynamin, and FtsZ (PDF) rings. We isolated intact supertwisted (or spiral) and circular PDF machineries from chloroplasts of the red alga Cyanidioschyzon merolae. After individual intact PDF machineries were stretched to four times their original lengths with optical tweezers, they spontaneously returned to their original sizes. Dynamin-released PDF machineries did not retain the spiral structure and could not be stretched. Thus, dynamin may generate the motive force for contraction by filament sliding in dividing chloroplasts, in addition to pinching-off the membranes.
巻・号 313(5792)
ページ 1435-8
公開日 2006-9-8
DOI 10.1126/science.1129689
PII 313/5792/1435
PMID 16960006
MeSH Actin Cytoskeleton / physiology* Actin Cytoskeleton / ultrastructure Algal Proteins / physiology* Chloroplasts / physiology* Chloroplasts / ultrastructure Dynamins / physiology* GTP Phosphohydrolases / physiology Intracellular Membranes / physiology Intracellular Membranes / ultrastructure Microscopy, Immunoelectron Rhodophyta / physiology* Rhodophyta / ultrastructure
IF 41.846
引用数 68
WOS 分野 CELL BIOLOGY
リソース情報
藻類 NIES-3377