Journal
JOURNAL OF STRUCTURAL BIOLOGY
Volume 146, Issue 1-2, Pages 106-112Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jsb.2003.11.008
Keywords
AAA family; ATPase; ATP hydrolysis; inter-subunit interactions
Funding
- NHLBI NIH HHS [HL56652] Funding Source: Medline
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Arginines are a recurrent feature of the active sites and subunit interfaces of the ATPase domains of AAA and AAA(+) proteins. In particular family members these residues occupy two or more, of four key sites in the vicinity of the ATP cofactor, where they transduce the chemical events of ATP binding and hydrolysis into a mechanochemical outcome. Structural and biochemical analyses have led to the proposal of molecular mechanisms in which these conserved arginines play crucial roles. Comparative studies, however, point to functional divergence for each of these conserved arginines. In this review, we will discuss what is known about these critical arginines and what can be concluded about their role in the function of AAA and AAA(+) proteins. (C) 2003 Elsevier Inc. All rights reserved.
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