Electronic structure description of the μ4-sulfide bridged tetranuclear Cuz center in N2O reductase

被引:64
作者
Chen, P
George, SD
Cabrito, I
Antholine, WE
Moura, JJG
Moura, I [1 ]
Hedman, B
Hodgson, KO
Solomon, EI
机构
[1] Univ Nova Lisboa, Fac Ciencias & Tecnol, CQFB, Dept Quim, P-2825114 Caparica, Portugal
[2] Stanford Univ, Dept Chem, Stanford, CA 94305 USA
[3] Med Coll Wisconsin, Biophys Res Inst, Milwaukee, WI 53226 USA
[4] Stanford Univ, Stanford Linear Accelerator Ctr, Stanford Synchrotron Radiat Lab, Stanford, CA 94309 USA
关键词
D O I
10.1021/ja0169623
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Spectroscopy coupled with density functional calculations has been used to define the spin state, oxidation states, spin distribution, and ground state wave function of the μ4-sulfide bridged tetranuclear CuZ cluster of nitrous oxide reductase. Initial insight into the electronic contribution to N2O reduction is developed, which involves a σ superexchange pathway through the bridging sulfide. Copyright © 2002 American Chemical Society.
引用
收藏
页码:744 / 745
页数:2
相关论文
共 18 条
[1]   Characterization of the copper-sulfur chromophores in nitrous oxide reductase by resonance Raman spectroscopy: Evidence for sulfur coordination in the catalytic cluster [J].
Alvarez, ML ;
Ai, JY ;
Zumft, W ;
Sanders-Loehr, J ;
Dooley, DM .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2001, 123 (04) :576-587
[2]  
BRONDINO CD, UNPUB
[3]  
Brown K, 2000, NAT STRUCT BIOL, V7, P191
[4]   Revisiting the catalytic CuZ cluster of nitrous oxide (N2O) reductase -: Evidence of a bridging inorganic sulfur [J].
Brown, K ;
Djinovic-Carugo, K ;
Haltia, T ;
Cabrito, I ;
Saraste, M ;
Moura, JJG ;
Moura, I ;
Tegoni, M ;
Cambillau, C .
JOURNAL OF BIOLOGICAL CHEMISTRY, 2000, 275 (52) :41133-41136
[5]   X-ray absorption edge and EXAFS studies of the blue copper site in stellacyanin: Effects of axial amide coordination [J].
DeBeer, S ;
Randall, DW ;
Nersissian, AM ;
Valentine, JS ;
Hedman, B ;
Hodgson, KO ;
Solomon, EI .
JOURNAL OF PHYSICAL CHEMISTRY B, 2000, 104 (46) :10814-10819
[6]   A MODEL OF THE COPPER CENTERS OF NITROUS-OXIDE REDUCTASE (PSEUDOMONAS-STUTZERI) - EVIDENCE FROM OPTICAL, EPR AND MCD SPECTROSCOPY [J].
FARRAR, JA ;
THOMSON, AJ ;
CHEESMAN, MR ;
DOOLEY, DM ;
ZUMFT, WG .
FEBS LETTERS, 1991, 294 (1-2) :11-15
[7]  
George S.J., UNPUB
[8]   A quantitative description of the ground-state wave function of CuA by X-ray absorption spectroscopy:: Comparison to plastocyanin and relevance to electron transfer [J].
George, SD ;
Metz, M ;
Szilagyi, RK ;
Wang, HX ;
Cramer, SP ;
Lu, Y ;
Tolman, WB ;
Hedman, B ;
Hodgson, KO ;
Solomon, EI .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2001, 123 (24) :5757-5767
[9]  
Jolly W.L., 1964, INORGANIC CHEM NITRO
[10]   X-RAY ABSORPTION-EDGE DETERMINATION OF THE OXIDATION-STATE AND COORDINATION-NUMBER OF COPPER - APPLICATION TO THE TYPE-3 SITE IN RHUS-VERNICIFERA LACCASE AND ITS REACTION WITH OXYGEN [J].
KAU, LS ;
SPIRASOLOMON, DJ ;
PENNERHAHN, JE ;
HODGSON, KO ;
SOLOMON, EI .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1987, 109 (21) :6433-6442