Preface ......................................................... v
Contributors ................................................... ix
Section I Nitrogen Fixation
1 Historic Overview of Nitrogenase Research .................... 3
Yilin Нu and Mark us W. Ribbe
2 Mechanism of Mo-Dependent Nitrogenase ........................ 9
Zhi-Yong Yang, Karamatullah Danyal, and Lance C. Seefeldt
3 Assembly of Nitrogenase MoFe Protein ........................ 31
Chi-Chung Lee, Aaron W. Fay, Jared A. Wiig, Markus
W. Ribbe, and Yilin Нu
4 Genomic Analysis of Nitrogen Fixation ....................... 49
Ina P. O'Carroll and Patricia C. Dos Santos
5 Enzymatic Systems with Homology to Nitrogenase .............. 67
Jürgen Moser and Markus J. Bröcker
Section II Genetic and Biochemical Methods
6 Molecular Biology and Genetic Engineering in Nitrogen
Fixation .................................................... 81
Patricia C. Dos Santos
7 Purification of Nitrogenase Proteins ........................ 93
Jared A. Wiig, Chi-Chung Lee, Aaron W. Fay, Yilin Нu, and
Markus W. Ribbe
8 Assays of Nitrogenase Reaction Products .................... 105
William E. Newton and Michael J. Dilworth
9 Methods for Nitrogenase-Like Dark Operative
Protochlorophyllide Oxidoreductase ......................... 129
Jürgen Moser and Markus J. Bröcker
Section III Spectroscopic Methods
10 X-Ray Crystallography ...................................... 147
Lauren E. Roth and F. Akif Tezcan
11 X-Ray Absorption Spectroscopy .............................. 165
Serena DeBeer
12 Small Angle X-Ray Scattering Spectroscopy .................. 177
David W. Mulder and John W. Peters
13 Electron Paramagnetic Resonance Spectroscopy ............... 191
Karamatullah Danyal, Zhi-Yong Yang, and Lance
C. Seefeldt
14 Magnetic Circular Dichroism Spectroscopy ................... 207
Brian J. Hales
15 Mossbauer Spectroscopy ..................................... 221
Boi Hanh Huynh
Section IV Chemical Methods
16 Protocols for Cofactor Isolation of Nitrogenase ............ 239
Aaron W. Fay, Cbi-Cbung Lee, Jared A. Wiig, Yilin Нu,
and Markus W. Ribbe
17 Techniques for Functional and Structural Modeling of
Nitrogenase ................................................ 249
Patrick L. Holland
Section V Theoretical Calculations
18 Nitrogenase Structure and Function Relationships by
Density Functional Theory .................................. 267
Travis V. Harris and Robert K. Szilagyi
19 Modeling the MoFe Nitrogenase System with Broken Symmetry
Density Functional Theory .................................. 293
Gregory M. Sandala and Louis Noodleman
Index ......................................................... 313
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