Essential motifs of relaxase (TraI) and TraG proteins involved in conjugative transfer of plasmid RP4

D Balzer, W Pansegrau, E Lanka - Journal of bacteriology, 1994 - Am Soc Microbiol
Two essential transfer genes of the conjugative plasmid RP4 were altered by site-directed
mutagenesis: traG of the primase operon and traI of the relaxase operon. To evaluate effects …

The F plasmid‐encoded TraM protein stimulates relaxosome‐mediated cleavage at oriT through an interaction with TraI

H Ragonese, D Haisch, E Villareal… - Molecular …, 2007 - Wiley Online Library
Conjugative DNA transfer is a highly conserved process for the direct transfer of DNA from a
donor to a recipient. The conjugative initiator proteins are key players in the DNA processing …

Bacterial conjugation: a two‐step mechanism for DNA transport

M Llosa, FX Gomis‐Rüth, M Coll… - Molecular …, 2002 - Wiley Online Library
Bacterial conjugation is a promiscuous DNA transport mechanism. Conjugative plasmids
transfer themselves between most bacteria, thus being one of the main causal agents of the …

Structural basis of specific TraD–TraM recognition during F plasmid‐mediated bacterial conjugation

J Lu, JJW Wong, RA Edwards, J Manchak… - Molecular …, 2008 - Wiley Online Library
F plasmid‐mediated bacterial conjugation requires interactions between a relaxosome
component, TraM, and the coupling protein TraD, a hexameric ring ATPase that forms the …

Site-specific recombinase and integrase activities of a conjugative relaxase in recipient cells

O Draper, CE César, C Machon… - Proceedings of the …, 2005 - National Acad Sciences
Conjugative relaxases are the proteins that initiate bacterial conjugation by a site-specific
cleavage of the transferred DNA strand. In vitro, they show strand-transferase activity on …

The origin of conjugative IncP plasmid transfer: interaction with plasmid-encoded products and the nucleotide sequence at the relaxation site

W Pansegrau, G Ziegelin, E Lanka - Biochimica et Biophysica Acta (BBA) …, 1988 - Elsevier
To characterize protein-DNA interactions involved in the initiation of conjugative transfer
replication we isolated and dissected the transfer origins (oriT) of the promiscuous IncP …

Relaxase DNA binding and cleavage are two distinguishable steps in conjugative DNA processing that involve different sequence elements of the nic site

M Lucas, B González-Pérez, M Cabezas… - Journal of Biological …, 2010 - ASBMB
TrwC, the relaxase of plasmid R388, catalyzes a series of concerted DNA cleavage and
strand transfer reactions on a specific site (nic) of its origin of transfer (oriT). nic contains the …

A new domain of conjugative relaxase TrwC responsible for efficient oriT‐specific recombination on minimal target sequences

CE César, C Machón, F De La Cruz… - Molecular …, 2006 - Wiley Online Library
We show that relaxase TrwC promotes recombination between two directly repeated oriTs
while related relaxases TraI of F and pKM101 do not. Efficient recombination required also …

Conjugative DNA metabolism in Gram-negative bacteria

F De La Cruz, LS Frost, RJ Meyer… - FEMS microbiology …, 2010 - academic.oup.com
Bacterial conjugation in Gram-negative bacteria is triggered by a signal that connects the
relaxosome to the coupling protein (T4CP) and transferosome, a type IV secretion system …

Stringent and Relaxed Recognition of oriT by Related Systems for Plasmid Mobilization: Implications for Horizontal Gene Transfer

S Jandle, R Meyer - Journal of bacteriology, 2006 - Am Soc Microbiol
The plasmids R1162 and pSC101 have origins of conjugative transfer (oriT s) and
corresponding relaxases that are closely related. The oriT s are made up of a highly …