Document Detail

Alternative flagellar filament types in the haloarchaeon Haloarcula marismortui.
MedLine Citation:
PMID:  18923552     Owner:  NLM     Status:  MEDLINE    
Many Archaea use rotation of helical flagellar filaments for swimming motility. We isolated and characterized the flagellar filaments of Haloarcula marismortui, an archaeal species previously considered to be nonmotile. Two Haloarcula marismortui phenotypes were discriminated--their filaments are composed predominantly of either FlaB or FlaA2 flagellin, and the corresponding genes are located on different replicons. FlaB and FlaA2 filaments differ in antigenicity and thermostability. FlaA2 filaments are distinctly thicker (20-22 nm) than FlaB filaments (16-18 nm). The observed filaments are nearly twice as thick as those of other characterized euryarchaeal filaments. The results suggest that the helicity of Haloarcula marismortui filaments is provided by a mechanism different from that in the related haloarchaeon Halobacterium salinarum, where 2 different flagellin molecules present in comparable quantities are required to form a helical filament.
Michael G Pyatibratov; Sergey N Beznosov; Reinhard Rachel; Elizabeth I Tiktopulo; Alexei K Surin; Alexei S Syutkin; Oleg V Fedorov
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Canadian journal of microbiology     Volume:  54     ISSN:  0008-4166     ISO Abbreviation:  Can. J. Microbiol.     Publication Date:  2008 Oct 
Date Detail:
Created Date:  2008-10-16     Completed Date:  2009-01-13     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0372707     Medline TA:  Can J Microbiol     Country:  Canada    
Other Details:
Languages:  eng     Pagination:  835-44     Citation Subset:  IM    
Institute of Protein Research, Russian Academy of Sciences, 142290 Pushchino, Moscow Region, Russia.
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MeSH Terms
Amino Acid Sequence
Archaeal Proteins / chemistry,  genetics,  metabolism*
Chlorides / metabolism*
Flagella / chemistry,  genetics,  metabolism*
Flagellin / chemistry,  genetics,  metabolism*
Haloarcula marismortui / chemistry,  genetics,  metabolism*
Molecular Sequence Data
Sequence Alignment
Reg. No./Substance:
0/Archaeal Proteins; 0/Chlorides; 12777-81-0/Flagellin; 1318-59-8/chlorite

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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