Title : An ATP-ADP switch in MuB controls progression of the Mu transposition pathway.

Pub. Date : 1998 Sep 15

PMID : 9736628






5 Functional Relationships(s)
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1 We found that both MuB-ADP and MuB-ATP stimulate transposase, whereas only MuB-ATP binds with high affinity to DNA. Adenosine Triphosphate ubiquitin like 3 Homo sapiens
2 We found that both MuB-ADP and MuB-ATP stimulate transposase, whereas only MuB-ATP binds with high affinity to DNA. Adenosine Triphosphate ubiquitin like 3 Homo sapiens
3 Four different ATPase-defective MuB mutants fail to activate the normal transposition pathway, further indicating that ATP plays critical regulatory roles during transposition. Adenosine Triphosphate ubiquitin like 3 Homo sapiens
4 Based on these studies, we propose that the switch from the ATP- to ADP-bound form allows MuB to release the target DNA while maintaining its stimulatory interaction with transposase. Adenosine Triphosphate ubiquitin like 3 Homo sapiens
5 Thus, ATP-hydrolysis by MuB appears to function as a molecular switch controlling how target DNA is delivered to the core transposition machinery. Adenosine Triphosphate ubiquitin like 3 Homo sapiens