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・ Crescent-faced antpitta
・ Crescent-Odell Lakes RFPD Heliport
・ Crescent-tail hogfish
・ Crescenta Valley
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Crescentin
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・ Crescentius Richard Duerr
・ Crescentius the Elder
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・ Crescentville, Philadelphia
・ Crescentwood
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・ Crescenzago
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Crescentin : ウィキペディア英語版
Crescentin
Crescentin is a protein which is a bacterial relative of the intermediate filaments found in eukaryotic cells. Just as tubulins and actins, the other major cytoskeletal proteins, have prokaryotic homologs in, respectively, the FtsZ and MreB proteins, intermediate filaments are linked to the crescentin protein.
==Role in cell shape==
Crescentin was recently discovered in the prokaryote ''Caulobacter crescentus'', an aquatic bacterium which uses its crescent-shaped cells for enhanced motility.〔Biosciences, Eurekah.com, 2000-2005. Accessed 19 February. 2006 through PubMed.〕 The crescentin protein is located on the concave face of these cells and appears to be necessary for their shape, as mutants lacking the protein form rod-shaped cells. To influence the shape of the ''Caulobacter'' cells, the helices of crescentin filaments associate with the cytoplasmic side of the cell membrane on one lateral side of the cell. This induces a curved cell shape in younger cells, which are shorter than the helical pitch of crescentin, but induces a spiral shape in older, longer cells.

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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