Pheromone-inducible conjugation in Enterococcus faecalis:: A model for the evolution of biological complexity?

被引:35
作者
Kozlowicz, BK [1 ]
Dworkin, M [1 ]
Dunny, GM [1 ]
机构
[1] Univ Minnesota, Sch Med, Dept Microbiol, Minneapolis, MN 55455 USA
关键词
peptide signal molecule; horizontal gene transfer; genetic regulation;
D O I
10.1016/j.ijmm.2006.01.040
中图分类号
Q93 [微生物学];
学科分类号
071005 ; 100705 ;
摘要
Pheromone-inducible transfer of the plasmid pCF10 in Enterococcus faecalis is regulated using a complicated network of proteins and RNAs. The plasmid itself has been assembled from parts garnered from a variety of sources, and many aspects of the system resemble a biological kluge. Recently several new functions of various pCF10 gene products that participate in regulation of plasmid transfer have been identified. The results indicate that selective pressures controlling the evolution of the plasmid have produced a highly complex regulatory network with multiple biological functions that may serve well as a model for the evolution of biological complexity. (c) 2006 Elsevier GmbH. All rights reserved.
引用
收藏
页码:141 / 147
页数:7
相关论文
共 19 条
[1]   STRUCTURE OF THE CRO REPRESSOR FROM BACTERIOPHAGE-LAMBDA AND ITS INTERACTION WITH DNA [J].
ANDERSON, WF ;
OHLENDORF, DH ;
TAKEDA, Y ;
MATTHEWS, BW .
NATURE, 1981, 290 (5809) :754-758
[2]   Analysis of expression of prgX, a key negative regulator of the transfer of the Enterococcus faecalis pheromone-inducible plasmid pCF10 [J].
Bae, T ;
Clerc-Bardin, S ;
Dunny, GM .
JOURNAL OF MOLECULAR BIOLOGY, 2000, 297 (04) :861-875
[3]   Characterization of cis-acting prgQ mutants:: evidence for two distinct repression mechanisms by Qa RNA and PrgX protein in pheromone-inducible enterococcal plasmid pCF10 [J].
Bae, T ;
Kozlowicz, BK ;
Dunny, GM .
MOLECULAR MICROBIOLOGY, 2004, 51 (01) :271-281
[4]   Two targets in pCF10 DNA for PrgX binding:: Their role in production of Qa and prgX mRNA and in regulation of pheromone-inducible conjugation [J].
Bae, T ;
Kozlowicz, B ;
Dunny, GM .
JOURNAL OF MOLECULAR BIOLOGY, 2002, 315 (05) :995-1007
[5]   Pheromone-inducible expression of an aggregation protein in Enterococcus faecalis requires interaction of a plasmid-encoded RNA with components of the ribosome [J].
Bensing, BA ;
Dunny, GM .
MOLECULAR MICROBIOLOGY, 1997, 24 (02) :295-308
[6]   Pheromone cCF10 and plasmid pCf10-encoded regulatory molecules act post-transcriptionally to activate expression of downstream conjugation functions [J].
Bensing, BA ;
Manias, DA ;
Dunny, GM .
MOLECULAR MICROBIOLOGY, 1997, 24 (02) :285-294
[7]   Cell-associated pheromone peptide (cCF10) production and pheromone inhibition in Enterococcus faecalis [J].
Buttaro, BA ;
Antiporta, MH ;
Dunny, GM .
JOURNAL OF BACTERIOLOGY, 2000, 182 (17) :4926-4933
[8]   A paracrine peptide sex pheromone also acts as an autocrine signal to induce plasmid transfer and virulence factor expression in vivo [J].
Chandler, JR ;
Hirt, H ;
Dunny, GM .
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2005, 102 (43) :15617-15622
[9]   Specific control of endogenous cCF10 pheromone by a conserved domain of the pCF10-encoded regulatory protein PrgY in Enterococcus faecalis [J].
Chandler, JR ;
Flynn, AR ;
Bryan, EA ;
Dunny, GM .
JOURNAL OF BACTERIOLOGY, 2005, 187 (14) :4830-4843
[10]   TRANSCRIPTIONAL ANALYSIS OF A REGION OF THE ENTEROCOCCUS-FAECALIS PLASMID PCF10 INVOLVED IN POSITIVE REGULATION OF CONJUGATIVE TRANSFER-FUNCTIONS [J].
CHUNG, JW ;
DUNNY, GM .
JOURNAL OF BACTERIOLOGY, 1995, 177 (08) :2118-2124