Primary Citation of Related Structures: 1GSH, 2GLT
PubMed Abstract:
The crystal structure of Escherichia coli B glutathione synthetase (GSHase) has been determined at the optimal catalytic condition pH 7.5. The most significant structural difference from the structure at pH 6.0 is the movement of the central domain towards the N-terminal domain almost as a rigid body ...
The crystal structure of Escherichia coli B glutathione synthetase (GSHase) has been determined at the optimal catalytic condition pH 7.5. The most significant structural difference from the structure at pH 6.0 is the movement of the central domain towards the N-terminal domain almost as a rigid body. As a result of this movement, new interdomain and intersubunit polar interactions are formed which stabilize the dimeric structure further. The structure of GSHase at optimal pH was compared with 294 other known protein structures in terms of the spatial arrangements of secondary structural elements. Three enzymes (D-alanine: D-alanine ligase, succinyl-CoA synthetase and the biotin carboxylase subunit of acetyl-CoA carboxylase) were found to have structures similar to the ATP-binding site of GSHase, which extends across two domains. The ATP-binding sites in these four enzymes are composed of two antiparallel beta-sheets and are different from the classic mononucleotide-binding fold. Except for these proteins, no significant structural similarity was detected between GSHase and the other ATP-binding proteins. A structural motif in the N-terminal domain of GSHase has been found to be similar to the NAD-binding fold. This structural motif is shared by a number of other proteins that bind various negatively charged molecules.
Related Citations:
Flexible Loop that is Novel Catalytic Machinery in a Ligase. Atomic Structure and Function of the Loopless Glutathione Synthetase Kato, H., Tanaka, T., Yamaguchi, H., Hara, T., Nishioka, T., Katsube, Y., Oda, J. (1994) Biochemistry 33: 4995
Mechanism-Based Inactivation of Glutathione Synthetase by Phosphinic Acid Transition-State Analogue Hiratake, J., Kato, H., Oda, J. (1994) J Am Chem Soc 116: 12059
Use of Adenosine (5')Polyphospho(5')Pyridoxals to Study the Substrate-Binding Region of Glutathione Synthetase from Escherichia Coli B Hibi, T., Kato, H., Nishioka, T., Oda, J., Yamaguchi, H., Katsube, Y., Tanizawa, K., Fukui, T. (1993) Biochemistry 32: 1545
Flexibility Impaired by Mutations Revealed the Multi-Functional Roles of the Loop in Glutathione Synthetase Tanaka, T., Yamaguchi, H., Kato, H., Nishioka, T., Katsube, Y., Oda, J. (1993) Biochemistry 32: 12398
Three-Dimensional Structure of the Glutathione Synthetase from Escherichia Coli B at 2.0 Angstroms Resolution Yamaguchi, H., Kato, H., Hata, Y., Nishioka, T., Kimura, A., Oda, J., Katsube, Y. (1993) J Mol Biol 229: 1083
Construction, Expression, and Characterization of Glutathione Synthetase Chimeras: Substitution of a Homologous Loop Peptide Region of Dihydrofolate Reductase Tanaka, T., Sakai, T., Chihara-Siomi, M., Takeshima, K., Kato, H., Misawa, T., Nishioka, T., Oda, J. (1993) Bull Inst Chem Res ,kyoto Univ 71: 274
Mutational and Proteolytic Studies on a Flexible Loop in Glutathione Synthetase from Escherichia Coli B: The Loop and Arginine 233 are Critical for the Catalytic Reaction Tanaka, T., Kato, H., Nishioka, T., Oda, J. (1992) Biochemistry 31: 2259
Structural Studies on Glutathione Synthetase from Escherichia Coli B Yamaguchi, H., Kato, H., Hata, Y., Nishioka, T., Oda, J., Katsube, Y. (1992) Photon Factory Activity Report 9: 85
Crystallization and Preliminary X-Ray Studies of Glutathione Synthetase from Escherichia Coli B Kato, H., Yamaguchi, H., Hata, Y., Nishioka, T., Katsube, Y., Oda, J. (1989) J Mol Biol 209: 503
Overexpression of Glutathione Synthase in Escherichia Coli Kato, H., Kobayashi, M., Murata, K., Nishioka, T., Oda, J. (1989) Agric Biol Chem 53: 3071
Role of Cysteine Residues in Glutathione Synthetase from Escherchia Coli B Kato, H., Tanaka, T., Nishioka, T., Kimura, A., Oda, J. (1988) J Biol Chem 263: 11646
Complete Nucleotide Sequence of E.Coli Glutathione Synthetase Gsh-II Gushima, H., Yasuda, S., Soeda, E., Yokota, M., Kondo, M., Kimura, A. (1984) Nucleic Acids Res 12: 9299
Organizational Affiliation:
Institute for Chemical Research, Kyoto University, Japan.
Download Mendeley
