Crystal structures of the main peptidase from the SARS coronavirus inhibited by a substrate-like aza-peptide epoxide.
Crystal structures of the main peptidase from the SARS coronavirus inhibited by a substrate-like aza-peptide epoxide.
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底物样的AZA肽环氧化物抑制了SARS冠状病毒的主要肽酶的晶体结构。
DOI:
10.1016/j.jmb.2005.09.004
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发表时间:
2005-11-11
影响因子:
5.6
通讯作者:
James MN
中科院分区:
文献类型:
--
作者:
Lee TW;Cherney MM;Huitema C;Liu J;James KE;Powers JC;Eltis LD;James MN
The main peptidase (Mpro) from the coronavirus (CoV) causing severe acute respiratory syndrome (SARS) is one of the most attractive molecular targets for the development of anti-SARS agents. We report the irreversible inhibition of SARS-CoV Mpro by an aza-peptide epoxide (APE; kinact/Ki=1900(±400) M−1 s−1). The crystal structures of the Mpro:APE complex in the space groups C2 and P212121 revealed the formation of a covalent bond between the catalytic Cys145 Sγ atom of the peptidase and the epoxide C3 atom of the inhibitor, substantiating the mode of action of this class of cysteine-peptidase inhibitors. The aza-peptide component of APE binds in the substrate-binding regions of Mpro in a substrate-like manner, with excellent structural and chemical complementarity. In addition, the crystal structure of unbound Mpro in the space group C2 revealed that the “N-fingers” (N-terminal residues 1 to 7) of both protomers of Mpro are well defined and the substrate-binding regions of both protomers are in the catalytically competent conformation at the crystallization pH of 6.5, contrary to the previously determined crystal structures of unbound Mpro in the space group P21.
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影响因子:
11.4
作者:
Anand, Kanchan;Palm, Gottfried J;Mesters, Jeroen R;Siddell, Stuart G;Ziebuhr, John;Hilgenfeld, Rolf
通讯作者:
Hilgenfeld, Rolf
DOI:
10.1074/jbc.m310875200
发表时间:
2004-01-16
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
Fan K;Wei P;Feng Q;Chen S;Huang C;Ma L;Lai B;Pei J;Liu Y;Chen J;Lai L
通讯作者:
Lai L
影响因子:
5.8
作者:
Groneberg DA;Hilgenfeld R;Zabel P
通讯作者:
Zabel P
影响因子:
2.9
作者:
Chou, CY;Chang, HC;Chang, GG
通讯作者:
Chang, GG
影响因子:
56.9
作者:
Anand, K;Ziebuhr, J;Hilgenfeld, R
通讯作者:
Hilgenfeld, R