Structural basis for the MukB‐topoisomerase IV interaction and its functional implications in vivo [PDF]
Chromosome partitioning in Escherichia coli is assisted by two interacting proteins, topoisomerase (topo) IV and MukB. MukB stimulates the relaxation of negative supercoils by topo IV; to understand the mechanism of their action and to define this functional interplay, we determined the crystal structure of a minimal MukB-topo IV complex to 2.3 Å ...
Seychelle M, Vos +3 more
openaire +2 more sources
Global dissemination of a multidrug resistant Escherichia coli clone. [PDF]
Escherichia coli sequence type 131 (ST131) is a globally disseminated, multidrug resistant (MDR) clone responsible for a high proportion of urinary tract and bloodstream infections. The rapid emergence and successful spread of E.
A. Pascual +38 more
core +3 more sources
Complex formation of MukB, MukE and MukF proteins involved in chromosome partitioning in Escherichia coli [PDF]
mukF, mukE and mukB genes are essential for the process of chromosome partitioning in Escherichia coli. We have studied protein-protein interactions among MukB, MukE and MukF proteins by co-immunoprecipitation and sucrose gradient sedimentation experiments, using mukFEB null cells harboring plasmids carrying the wild-type or mutant-type mukFEB operon ...
M, Yamazoe +6 more
openaire +2 more sources
Carboxyl terminal region of the MukB protein in Escherichia coli is essential for DNA binding activity [PDF]
The purified MukB protein of Escherichia coli has DNA binding activity and nucleotide binding activity. We have isolated a mutation, mukB1013, causing a substitution of valine at position 1379 to leucine. This mutant MukB protein was defective for DNA binding, while the ATP binding activity remained unaffected. A truncated MukB protein that is short of
A Z, Saleh +5 more
openaire +3 more sources
The Escherichia coli CrfC protein is an important regulator of nucleoid positioning and equipartition. Previously we revealed that CrfC homo-oligomers bind the clamp, a DNA-binding subunit of the DNA polymerase III holoenzyme, promoting colocalization of
Saki Taniguchi +3 more
doaj +1 more source
Biochemical characterization of the Structural Maintenance of Chromosomes (SMC) complex from Bacillus subtilis [PDF]
Structural Maintenance of Chromosomes (SMC) proteins play a key role in the chromosome dynamics throughout the cell cycle in almost all species from bacteria to eukaryotes.
Graumann, Peter (PD Dr.), Volkov, Arsen
core +1 more source
The type II topoisomerase TopoIV, which has an essential role in Escherichia coli chromosome decatenation, interacts with MukBEF, an SMC (structural maintenance of chromosomes) complex that acts in chromosome segregation.
Pawel Zawadzki +6 more
doaj +1 more source
Are SMC complexes loop extruding factors? Linking theory with fact [PDF]
The extreme length of chromosomal DNA requires organizing mechanisms to both promote functional genetic interactions and ensure faithful chromosome segregation when cells divide.
Akai +102 more
core +1 more source
RNase E polypeptides lacking a carboxyl-terminal half suppress a mukB mutation in Escherichia coli [PDF]
We have isolated suppressor mutants that suppress temperature-sensitive colony formation and anucleate cell production of a mukB mutation. A linkage group (smbB) of the suppressor mutations is located in the rne/ams/hmp gene encoding the processing endoribonuclease RNase E. All of the rne (smbB) mutants code for truncated RNase E polypeptides lacking a
M, Kido +5 more
openaire +2 more sources
Two mutant alleles ofmukB, a gene essential for chromosome partition inEscherichia coli [PDF]
The MukB protein is essential for chromosome partitioning in Escherichia coli and consists of 1484 amino acid residues (170 kDa). We have determined the base changes at the mutated sites of the mukB106 mutant and a newly isolated mutant, mukB33. These mutant mukB genes were each found to carry a single base-pair transition which leads to an amino acid ...
K, Yamanaka +5 more
openaire +3 more sources

