| Literature DB >> 16960006 |
Yamato Yoshida1, Haruko Kuroiwa, Osami Misumi, Keiji Nishida, Fumi Yagisawa, Takayuki Fujiwara, Hideaki Nanamiya, Fujio Kawamura, Tsuneyoshi Kuroiwa.
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.Entities:
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Year: 2006 PMID: 16960006 DOI: 10.1126/science.1129689
Source DB: PubMed Journal: Science ISSN: 0036-8075 Impact factor: 47.728