Evidence that Clostridium difficile TcdC is a membrane-associated protein

被引:22
作者
Govind, Revathi [1 ]
Vediyappan, Govindsamy [1 ]
Rolfe, Rial D. [1 ]
Fralick, Joe A. [1 ]
机构
[1] Texas Tech Univ, Hlth Sci Ctr, Dept Microbiol & Immunol, Sch Med, Lubbock, TX 79430 USA
关键词
D O I
10.1128/JB.188.10.3716-3720.2006
中图分类号
Q93 [微生物学];
学科分类号
071005 ; 100705 ;
摘要
Clostridium difficile produces two toxins, A and B, which act together to cause pseudomembraneous colitis. The genes encoding these toxins, tcdA and tcdB, are part of the pathogenicity locus, which also includes tcdC, a putative negative regulator of the toxin genes. In this study, we demonstrate that TcdC is a membrane-associated protein in C. difficile.
引用
收藏
页码:3716 / 3720
页数:5
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共 20 条
  • [11] The Vibrio cholerae ToxR/TcpP/ToxT virulence cascade:: distinct roles for two membrane-localized transcriptional activators on a single promoter
    Krukonis, ES
    Yu, RR
    DiRita, VJ
    [J]. MOLECULAR MICROBIOLOGY, 2000, 38 (01) : 67 - 84
  • [12] A predominantly clonal multi-institutional outbreak of Clostridium difficile-associated diarrhea with high morbidity and mortality
    Loo, VG
    Poirier, L
    Miller, MA
    Oughton, M
    Libman, MD
    Michaud, S
    Bourgault, AM
    Nguyen, T
    Frenette, C
    Kelly, M
    Vibien, A
    Brassard, P
    Fenn, S
    Dewar, K
    Hudson, TJ
    Horn, R
    René, P
    Monczak, Y
    Dascal, A
    [J]. NEW ENGLAND JOURNAL OF MEDICINE, 2005, 353 (23) : 2442 - 2449
  • [13] Environmental response and autoregulation of Clostridium difficile TxeR, a sigma factor for toxin gene expression
    Mani, N
    Lyras, D
    Barroso, L
    Howarth, P
    Wilkins, T
    Rood, JI
    Sonenshein, AL
    Dupuy, B
    [J]. JOURNAL OF BACTERIOLOGY, 2002, 184 (21) : 5971 - 5978
  • [14] Regulation of toxin synthesis in Clostridium difficile by an alternative RNA polymerase sigma factor
    Mani, N
    Dupuy, B
    [J]. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2001, 98 (10) : 5844 - 5849
  • [15] An epidemic, toxin gene-variant strain of Clostridium difficile
    McDonald, LC
    Killgore, GE
    Thompson, A
    Owens, RC
    Kazakova, SV
    Sambol, SP
    Johnson, S
    Gerding, DN
    [J]. NEW ENGLAND JOURNAL OF MEDICINE, 2005, 353 (23) : 2433 - 2441
  • [16] Genetic characterization of toxin A-negative, toxin B-positive Clostridium difficile isolates by PCR
    Moncrief, JS
    Zheng, LM
    Neville, LM
    Lyerly, DM
    [J]. JOURNAL OF CLINICAL MICROBIOLOGY, 2000, 38 (08) : 3072 - 3075
  • [17] Genetic rearrangements in the pathogenicity locus of Clostridium difficile strain 8864 -: implications for transcription, expression and enzymatic activity of toxins A and B
    Soehn, F
    Wagenknecht-Wiesner, A
    Leukel, P
    Kohl, M
    Weidmann, M
    von Eichel-Streiber, C
    Braun, V
    [J]. MOLECULAR AND GENERAL GENETICS, 1998, 258 (03): : 222 - 232
  • [18] Molecular analysis of the pathogenicity locus and polymorphism in the putative negative regulator of toxin production (TcdC) among Clostridium difficile clinical isolates
    Spigaglia, P
    Mastrantonio, P
    [J]. JOURNAL OF CLINICAL MICROBIOLOGY, 2002, 40 (09) : 3470 - 3475
  • [19] Clostridium difficile toxins:: Mechanism of action and role in disease
    Voth, DE
    Ballard, JD
    [J]. CLINICAL MICROBIOLOGY REVIEWS, 2005, 18 (02) : 247 - +
  • [20] Toxin production by an emerging strain of Clostridium difficile associated with outbreaks of severe disease in North America and Europe
    Warny, M
    Pepin, J
    Fang, A
    Killgore, G
    Thompson, A
    Brazier, J
    Frost, E
    McDonald, LC
    [J]. LANCET, 2005, 366 (9491) : 1079 - 1084