Allosteric P450 mechanisms: multiple binding sites, multiple conformers or both?
Allosteric P450 mechanisms: multiple binding sites, multiple conformers or both?
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DOI:
10.1517/17425250802500028
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发表时间:
2008-12
影响因子:
4.3
通讯作者:
Halpert JR
中科院分区:
文献类型:
--
作者:
Davydov DR;Halpert JR
According to the initial hypothesis on the mechanisms of cooperativity in drug-metabolizing cytochromes P450, a loose fit of a single substrate molecule in the P450 active site results in a requirement for the binding of multiple ligand molecules for efficient catalysis. Although simultaneous occupancy of the active site by multiple ligands is now well established, there is increasing evidence that the mechanistic basis of cooperativity also involves an important ligand-induced conformational transition. Moreover, recent studies demonstrate that the conformational heterogeneity of the enzyme is stabilized by ligand-dependent interactions of several P450 molecules. Application of the concept of an oligomeric allosteric enzyme to microsomal cytochromes P450 in combination with a general paradigm of multiple ligand occupancy of the active site provides an excellent explanation for complex manifestations of the atypical kinetic behavior of the enzyme.
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影响因子:
2.9
作者:
Davydov, Dmitri R.;Davydova, Nadezhda Y.;Halpert, James R.
通讯作者:
Halpert, James R.
影响因子:
2.9
作者:
Backes, WL;Batie, CJ;Cawley, GF
通讯作者:
Cawley, GF
DOI:
10.1016/j.bbrc.2003.09.247
发表时间:
2003-12-05
影响因子:
3.1
作者:
Davydov, DR;Halpert, JR;Hoa, GHB
通讯作者:
Hoa, GHB
DOI:
10.1006/bbrc.2000.3596
发表时间:
2000-10-05
影响因子:
3.1
作者:
Davydov, DR;Petushkova, NA;Hoa, GHB
通讯作者:
Hoa, GHB
影响因子:
4.1
作者:
Atkins, WM;Wang, RW;Lu, AYH
通讯作者:
Lu, AYH