Role of hydration in collagen recognition by bacterial adhesins.
Role of hydration in collagen recognition by bacterial adhesins.
复制标题
水合在细菌粘附素识别胶原蛋白中的作用。
DOI:
10.1016/j.bpj.2011.03.033
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发表时间:
2011
影响因子:
3.4
通讯作者:
Vitagliano L
中科院分区:
文献类型:
--
作者:
Vitagliano L
Protein-protein recognition regulates the vast majority of physiological or pathological processes. We investigated the role of hydration in collagen recognition by bacterial adhesin CNA by means of first principle molecular-dynamics samplings. Our characterization of the hydration properties of the isolated partners highlights dewetting-prone areas on the surface of CNA that closely match the key regions involved in hydrophobic intermolecular interactions upon complex formation, suggesting that the hydration state of the ligand-free CNA predisposes the protein to the collagen recognition. Moreover, hydration maps of the CNA-collagen complex reveal the presence of a number of structured water molecules that mediate intermolecular interactions at the interface between the two proteins. These hydration sites feature long residence times, significant binding free energies, and a geometrical distribution that closely resembles the hydration pattern of the isolated collagen triple helix. These findings are striking evidence that CNA recognizes the collagen triple helix as a hydrated molecule. For this structural motif, the exposure of several unsatisfied backbone carbonyl groups results in a strong interplay with the solvent, which is shown to also play a role in collagen recognition.
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影响因子:
8.6
作者:
Fernández, A;Scott, LR
通讯作者:
Scott, LR
影响因子:
15
作者:
Abel, Robert;Young, Tom;Friesner, Richard A.
通讯作者:
Friesner, Richard A.
影响因子:
3.4
作者:
De Simone, A;Spadaccini, R;Fraternali, F
通讯作者:
Fraternali, F
DOI:
10.1021/jp0625715
发表时间:
2006
期刊:
The journal of physical chemistry. B
影响因子:
--
作者:
S. S. Raman;R. Parthasarathi;V. Subramanian;T. Ramasami
通讯作者:
T. Ramasami
影响因子:
5.7
作者:
J. Emsley
通讯作者:
J. Emsley