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    Chlamydia trachomatis protein CT009 is a structural and functional homolog to the key morphogenesis component RodZ and interacts with division septal plane localized MreB

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    Issue Date
    2015-02
    Author
    Kemege, Kyle Evan
    Hickey, John M.
    Barta, Michael L.
    Wickstrum, Jason
    Balwalli, Namita Ashwin
    Lovell, Scott
    Battaile, Kevin P.
    Hefty, P. Scott
    Publisher
    Wiley
    Type
    Article
    Article Version
    Scholarly/refereed, author accepted manuscript
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    Abstract
    Cell division in Chlamydiae is poorly understood as apparent homologs to most conserved bacterial cell division proteins are lacking and presence of elongation (rod shape) associated proteins indicate non-canonical mechanisms may be employed. The rod-shape determining protein MreB has been proposed as playing a unique role in chlamydial cell division. In other organisms, MreB is part of an elongation complex that requires RodZ for proper function. A recent study reported that the protein encoded by ORF CT009 interacts with MreB despite low sequence similarity to RodZ. The studies herein expand on those observations through protein structure, mutagenesis, and cellular localization analyses. Structural analysis indicated that CT009 shares high level of structural similarity to RodZ, revealing the conserved orientation of two residues critical for MreB interaction. Substitutions eliminated MreB protein interaction and partial complementation provided by CT009 in RodZ deficient E. coli. Cellular localization analysis of CT009 showed uniform membrane staining in Chlamydia. This was in contrast to the localization of MreB, which was restricted to predicted septal planes. MreB localization to septal planes provides direct experimental observation for the role of MreB in cell division and supports the hypothesis that it serves as a functional replacement for FtsZ in Chlamydia.
    Description
    This is the peer reviewed version of the following article: Kemege, K. E., Hickey, J. M., Barta, M. L., Wickstrum, J., Balwalli, N., Lovell, S., Battaile, K. P. and Hefty, P. S. (2015), Chlamydia trachomatis protein CT009 is a structural and functional homolog to the key morphogenesis component RodZ and interacts with division septal plane localized MreB. Molecular Microbiology, 95: 365–382. doi:10.1111/mmi.12855, which has been published in final form at http://doi.org/10.1111/mmi.12855. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving.
    URI
    http://hdl.handle.net/1808/24590
    DOI
    https://doi.org/10.1111/mmi.12855
    Collections
    • Molecular Biosciences Scholarly Works [581]
    Citation
    Kemege, K. E., Hickey, J. M., Barta, M. L., Wickstrum, J., Balwalli, N., Lovell, S., Battaile, K. P. and Hefty, P. S. (2015), Chlamydia trachomatis protein CT009 is a structural and functional homolog to the key morphogenesis component RodZ and interacts with division septal plane localized MreB. Molecular Microbiology, 95: 365–382. doi:10.1111/mmi.12855

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    Contact KU ScholarWorks
    785-864-8983
    KU Libraries
    1425 Jayhawk Blvd
    Lawrence, KS 66045
    785-864-8983

    KU Libraries
    1425 Jayhawk Blvd
    Lawrence, KS 66045
    Image Credits
     

     

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