■　REVIEW

Impedimetric Biosensors.
Jian-Guo Guan, Yu-Qing Miao, and Qing-Jie Zhang

■　GENETICS, MOLECULAR BIOLOGY, AND GENE ENGINEERING

Cloning, Sequence Analysis and Disruption of the mglA Gene Involved in Swarming Motility of Sorangium cellulosum So ce26, a Producer of the Antifungal Polyketide Antibiotic Soraphen A.
Ross Zirkle, James M. Ligon, and Istvan Molnar

■　ENZYMOLOGY, PROTEIN ENGINEERING, AND ENZYME TECHNOLOGY

Cloning and Heterologous Expression of a β-Fructofuranosidase Gene from Arthrobacter globiformis IFO 3062, and Site-Directed Mutagenesis of the Essential Aspartic Acid and Glutamic Acid of the Active Site.
Naoto Isono, Takashi Tochihara, Yuyus Kusnadi, Than Than Win, Kenji Watanabe, Kazuhiro Obae, Hiroyuki Ito, and Hirokazu Matsui

Aldoxime Dehydratase Co-existing with Nitrile Hydratase and Amidase in the Iron-Type Nitrile Hydratase-Producer Rhodococcus sp. N-771.
Yasuo Kato, Satoshi Yoshida, Sheng-Xue Xie, and Yasuhisa Asano

Purification and Properties of a Low-Molecular-Weight Phytase from Cladosporium sp. FP-1.
Chun-Shan Quan, Wen-Jie Tian, Sheng-Di Fan, and Jun-ichi Kikuchi

Characterization of Two Fructosyl-Amino Acid Oxidase Homologs of Schizosaccharomyces pombe.
Nobuyuki Yoshida, Shin-ichi Akazawa, Tohoru Katsuragi, and Yoshiki Tani

■　MICROBIAL PHYSIOLOGY AND BIOTECHNOLOGY

Matrix Metalloproteinase-2 Inhibition and Zn²⁺-Chelating Activities of Pyoverdine-Type Siderophores.
Yukiko Shinozaki-Tajiri, Yukie Akutsu-Shigeno, Toshiaki Nakajima-Kambe, Shinji Inomata, Nobuhiko Nomura, and Hiroo Uchiyama

■　ENVIRONMENTAL BIOTECHNOLOGY

High-Yield Production of Hydrogen by Enterobacter aerogenes Mutants with Decreased α-Acetolactate Synthase Activity.
Takeshi Ito, Yutaka Nakashimada, Toshihide Kakizono, and Naomichi Nishino

Adsorption of Uranium from Acidic Solution by Microbes and Effect of Thorium on Uranium Adsorption by Streptmyces levoris.
Takehiko Tsuruta

■　BIOCHEMICAL ENGINEERING

Dendrimer-Immobilized Culture Surface as a Tool to Evaluate Formation of Cellular Cytoskeleton of Anchorage-Dependent Cells.
Norihiko Hata, Mee-Hae Kim, Katsuhiro Isoda, Masahiro Kino-oka, Masaya Kawase, Kiyohito Yagi, and Masahito Taya

Temperature Shift as a Process Optimization Step for the Production of Prourokinase by a Recombinant Chinese Hamster Ovary Cell Line in High-Density Perfusion Culture.
Zhao-Lie Chen, Ben-Chuan Wu, Hong Liu, Xing-Mao Liu, and Pei-Tang Huang

Expanded Bed Adsorption for Purification of Alcohol Dehydrogenase Using a Dye-Iminodiacetic Acid Matrix.
Chusnul Hidayat, Mutsumi Takagi, and Toshiomi Yoshida

■　ABSTRACTS OF THE ARTICLES PRINTED IN SEIBUTSU-KOGAKU

KAISHI Vol.82, No.3