Sökning: onr:"swepub:oai:research.chalmers.se:6c9b388e-f014-4924-b26d-0fb4b1dc3fe1" > Role of Zero-Order ...
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000 | 03136naa a2200385 4500 | |
001 | oai:research.chalmers.se:6c9b388e-f014-4924-b26d-0fb4b1dc3fe1 | |
003 | SwePub | |
008 | 200319s2020 | |||||||||||000 ||eng| | |
024 | 7 | a https://doi.org/10.1016/j.bpj.2019.11.11912 DOI |
024 | 7 | a https://research.chalmers.se/publication/5160342 URI |
040 | a (SwePub)cth | |
041 | a engb eng | |
042 | 9 SwePub | |
072 | 7 | a kon2 swepub-publicationtype |
072 | 7 | a ref2 swepub-contenttype |
100 | 1 | a Homouz, Dirar M.u Khalifa University of Science and Technology,University of Houston4 aut |
245 | 1 0 | a Role of Zero-Order Loop in Protein Unfolding Case Study with Apoazurin |
264 | 1 | b Elsevier BV,c 2020 |
520 | a Pseudomonas aeruginosa apoazurin (apo, without the copper cofactor) is a two-state folder that has a single disulfide bond between residues 3 and 26. This bond covalently connects the N-termini of beta-strands 1 and 3; thereby it creates a zero-order loop. The loop restricts the conformational space for the apoazurin polypeptide. In order to understand the role played by the zero-order loop, we used molecular dynamics (MD) simulations to compare two variants of apoazurin; one variant called “loop” which contained the disulfide and another called “open” in which the disulfide bond between residues 3 and 26 was removed. MD simulations were performed to probe the unfolding pathway and stability of the two apoazurin variants at different urea concentrations and temperatures. Our results show that the folded structure apoazurin is somewhat more stable due to the presence of the disulfide bond. However, the disulfide bond plays a prominent role in the apoazurin unfolding mechanism: we find that it changes both the folding-transition state and the unfolded-state ensemble of conformations. | |
650 | 7 | a MEDICIN OCH HÄLSOVETENSKAPx Medicinska och farmaceutiska grundvetenskaperx Fysiologi0 (SwePub)301062 hsv//swe |
650 | 7 | a MEDICAL AND HEALTH SCIENCESx Basic Medicinex Physiology0 (SwePub)301062 hsv//eng |
650 | 7 | a NATURVETENSKAPx Fysikx Annan fysik0 (SwePub)103992 hsv//swe |
650 | 7 | a NATURAL SCIENCESx Physical Sciencesx Other Physics Topics0 (SwePub)103992 hsv//eng |
650 | 7 | a NATURVETENSKAPx Biologix Biofysik0 (SwePub)106032 hsv//swe |
650 | 7 | a NATURAL SCIENCESx Biological Sciencesx Biophysics0 (SwePub)106032 hsv//eng |
653 | a Apoazurin | |
653 | a zero-order loop | |
700 | 1 | a Zegarra, Fabiou University of Houston4 aut |
700 | 1 | a Wittung Stafshede, Pernilla,d 1968u Chalmers tekniska högskola,Chalmers University of Technology4 aut0 (Swepub:cth)perwit |
700 | 1 | a Cheung, Margaret S.u Rice University,University of Houston4 aut |
710 | 2 | a Khalifa University of Science and Technologyb University of Houston4 org |
773 | 0 | t Biophysical Journald : Elsevier BVg 118:3, Supplement 1, s. 197A-197Aq 118:3, Supplement 1<197A-197Ax 0006-3495x 1542-0086 |
856 | 4 | u http://www.cell.com/article/S0006349519321241/pdf |
856 | 4 8 | u https://doi.org/10.1016/j.bpj.2019.11.1191 |
856 | 4 8 | u https://research.chalmers.se/publication/516034 |
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