Crystal structure of the alcohol dehydrogenase from the hyperthermophilic archaeon Sulfolobus solfataricus at 1.85 A resolution.Esposito, L., Sica, F., Raia, C.A., Giordano, A., Rossi, M., Mazzarella, L., Zagari, A.
(2002) J Mol Biol 318: 463-477
- PubMed: 12051852
- DOI: 10.1016/S0022-2836(02)00088-8
- Primary Citation of Related Structures:
- PubMed Abstract:
- NADP-dependent Bacterial Alcohol Dehydrogenases: Crystal Structure, Co-Factor-Binding and Co-Factor Specificity of the ADHS of Clostridium beijerinckii and Thermoanaerobacter brockii
Korkhin, Y., Kalb, A.J., Peretz, M., Bogin, O., Burstein, Y., Frolow, F.
(1998) J Mol Biol 278: 967
- Three Dimensional Structure of Horse Liver Alcoholdehydrogenase at 2.4 Angstrom Resolution
Eklund, H., Nordstrom, B., Zeppezauer, E., Soderlund, G., Ohlsson, I., Boiwe, T., Soderberg, B.O., Tapia, O., Branden, C.I., Akeson, A.
(1976) J Mol Biol 102: 27
- Crystal Structure of NADP(H)-Dependent Ketose Reductase from Besimia Argentifolii at 2.3 Angstrom Resolution
Banfield, M.J., Salvucci, M.E., Baker, E.N., Smith, C.A.
(2001) J Mol Biol 306: 239
The crystal structure of a medium-chain NAD(H)-dependent alcohol dehydrogenase (ADH) from an archaeon has been solved by multiwavelength anomalous diffraction, using a selenomethionine-substituted enzyme. The protein (SsADH), extracted from the hyperthermophilic organism Sulfolobus solfataricus, is a homo-tetramer with a crystallographic 222 symmetry ...
The crystal structure of a medium-chain NAD(H)-dependent alcohol dehydrogenase (ADH) from an archaeon has been solved by multiwavelength anomalous diffraction, using a selenomethionine-substituted enzyme. The protein (SsADH), extracted from the hyperthermophilic organism Sulfolobus solfataricus, is a homo-tetramer with a crystallographic 222 symmetry. Despite the low level of sequence identity, the overall fold of the monomer is similar to that of the other homologous ADHs of known structure. However, a significant difference is the orientation of the catalytic domain relative to the coenzyme-binding domain that results in a larger interdomain cleft. At the bottom of this cleft, the catalytic zinc ion is coordinated tetrahedrally and lacks the zinc-bound water molecule that is usually found in ADH apoform structures. The fourth coordination position is indeed occupied by a Glu residue, as found in bacterial tetrameric ADHs. Other differences are found in the architecture of the substrate pocket whose entrance is more restricted than in other ADHs. SsADH is the first tetrameric ADH X-ray structure containing a second zinc ion playing a structural role. This latter metal ion shows a peculiar coordination, with a glutamic acid residue replacing one of the four cysteine ligands that are highly conserved throughout the structural zinc-containing dimeric ADHs.
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