Inorganic Biochemistry Volume 82, Numbers 1—4, November 2000 Contents Preface Focused Reviews X-ray structure and the reaction mechanism of bovine heart cytochrome c oxidase S. Yoshikawa, K. Shinzawa-Itoh, T. Tsukihara Structures of reaction intermediates of bovine cytochrome c oxidase probed by time-resolved vibrational spectroscopy T. Kitagawa Probing molecular structure of dioxygen reduction site of bacterial quinol oxidases through ligand binding to the redox metal centers sas Cat, “ade Conca Oe Abia M. Tsubaki, H. Hori, T. Mogi Plant sulfite reductase: molecular structure, catalytic function and interaction with ferredoxin M. Nakayama, T. Akashi, T. Hase Mechanism of heme degradation by heme oxygenase T. Yoshida, C.T. Migita The role of the [2Fe—2S] cluster centers in xanthine oxidoreductase T. Nishino, K. Okamoto CO sensing and regulation of gene expression by the transcriptional activator CooA S. Aono, Y. Honma, K. Ohkubo, T. Tawara, T. Kamiya, H. Nakajima Artificial zinc finger peptides: creation, DNA recognition, and gene regulation M. Nagaoka, Y. Sugiura Research Articles Active site structure of SoxB-type cytochrome bo, oxidase from thermophilic Bacillus T. Uchida, M. Tsubaki, T. Kurokawa, H. Hori, J. Sakamoto, T. Kitagawa, N. Sone Heme-copper oxidase family structure of Magnetospirillum magnetotacticum ‘cytochrome a,’-like hemoprotein without cytochrome c oxidase activity Y.-s. Tanimura, Y. Fukumori Spectroscopic and electrochemical properties of the Met86GIn mutant of Achromobacter cycloclastes pseudoazurin K. Kataoka, A. Kondo, K. Yamaguchi, S. Suzuki Effects of lanthanide substitution at Ca’ * -site on the properties of the oxygen evolving center of Photosystem II T.-a. Ono Changes of tyrosine and tryptophan residues in human hemoglobin by oxygen binding: near- and far-UV circular dichroism of isolated chains and recombined hemoglobin R. Li, Y. Nagai, M. Nagai Mutation effects of a conserved threonine (Thr243) of cytochrome P450nor on its structure and function E. Obayashi, H. Shimizu, S.-Y. Park, H. Shoun, Y. Shiro Separation and identification of the regioisomers of verdoheme by reversed-phase ion-pair high-performance liquid chromatography, and characterization of their complexes with heme oxygenase H. Sakamoto, Y. Omata, Y. Adachi, G. Palmer, M. Noguchi Remarkable axial thiolate ligand effect on the oxidation of hydrocarbons by active intermediate of iron porphyrin and cytochrome P450 T. Ohno, N. Suzuki, T. Dokoh, Y. Urano, K. Kikuchi, M. Hirobe, T. Higuchi, T. Nagano Elsevier Science BV. Contents \ new thioether-ligated iron porphyrin as a model of a protonated form of P450 active site r. Dokoh, N. Suzuki, T. Higuchi, Y. Urano, K. Kikuchi, T. Nagano Introduction of : specific binding domain on myoglobin surface by new chemical modification asni, T. Ando, T. Matsuda, H. Yonemura, S. Yamada, Y. Hisaeda }n e esrleeccttrroonni c a" na | V vibrational structures of iron—oxo porphyrin with a methoxide or cysteinate axial ligand T. Ohta, K. Matsuura, K. Yoshizawa, I. Morishima 1 complex as a functional model for hemerythrin Peierls. Si siet \rii, S. Nagatomo, T. Kitagawa, T. Miwa, K. Jitsukawa, H. Einaga, H. Masuda the heme proximal side residues tryptophan409 and tryptopkan421 of neuronal nitric oxide synthase in the electron S. Daff, T. Shimizu YSIS on molecular mechanisms for regulation of cytochrome P450scc activity upon steroidogenic 1 nin <¢ ice a1 S 2. Homma, T. Kimoto, ¥ Niimura, A. Krivosheev, T. Hara, Y. Ohta, S. Kawato *R studies on the photoinduced intermediates of NO complexes in recombinant ferric-Mb trapped at low temperatures H. Hori, F. Masuya, Y. Dou, M. I[keda-Saito italytic loop sequences on the complex formation of a deoxyribozyme and its RNA substrate N. Sugimoto of aptamers that act with Zn are li, H. Imanaka, Y. Yokota, N. Sugimoto r of TFIIIA stabilizes a hairpin structure of the non-coding strand in the internal control region of 5S RNA gene Okada, M. Kaneta, Y. Urayama, H. Takeuchi p2Sp! RNA with Mg” and non-ionic detergent (Brij 58) i, K. Hosono, G. Kawai, K. Takai, H. Takaku ion and preliminary X-ray diffraction studies of Streptomyces phospholipase A, in a calcium-binding form r. Kumagai, M. Sugiyama tructure of the zinc-binding site in the crystal structure of a zinc endoprotease from Streptomyces caespitosus at | A resolution G. Kurisu, Y. Kai, S. Harada a y in three-coordinate thiolato compounds (NEt,),{M(SC,H,-p-X),] and (NEt,),[M,(p-SC,H,-p-Cl),|: . S. Imai, S. Suzuki, Y. Moro-oka, Y. Miyashita, Y. Yamada, K.-i. Okamoto ve recognition of consecutive G sequence in double-stranded DNA by a Zinc(II])—macrocyclic tetraamine complex appended 1 anthraquinone Kikuta, R. Matsubara, N. Katsube, T. Koikem, E. Kimura f Volume 82 of Volume 82 f articles in electronic form thus saving time and avoiding rekeying errors. Please refer to the online www.elsevierl.nl/locate/jinorgbio This journal is part of ContentsDirect, the free alerting service which sends tables of contents by e-mail for Elsevier Science books and journals. You can register for ContentsDirect online at: www.elsevier.nl/locate/ contentsdirect now available on & http://ChemWeb.com ‘The World Wide Chat tort he Chmmical Commentty