2ivf
From Proteopedia
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ETHYLBENZENE DEHYDROGENASE FROM AROMATOLEUM AROMATICUM
Overview
Anaerobic degradation of hydrocarbons was discovered a decade ago, and, ethylbenzene dehydrogenase was one of the first characterized enzymes, involved. The structure of the soluble periplasmic 165 kDa enzyme was, established at 1.88 A resolution. It is a heterotrimer. The alpha subunit, contains the catalytic center with a molybdenum held by two, molybdopterin-guanine dinucleotides, one with an open pyran ring, and an, iron-sulfur cluster with a histidine ligand. During catalysis, electrons, produced by substrate oxidation are transferred to a heme in the gamma, subunit and then presumably to a separate cytochrome involved in nitrate, respiration. The beta subunit contains four iron-sulfur clusters and is, structurally related to ferredoxins. The gamma subunit is the first known, protein with a methionine and a lysine as axial heme ligands. The, catalytic product was modeled into the active center, showing the reaction, geometry. A mechanism consistent with activity and inhibition data of, ethylbenzene-related compounds is proposed.
About this Structure
2IVF is a Protein complex structure of sequences from Azoarcus sp. eb1 with , , , , , , , , and as ligands. Active as Ethylbenzene hydroxylase, with EC number 1.17.99.2 Known structural/functional Site: . Full crystallographic information is available from OCA.
Reference
Crystal structure of ethylbenzene dehydrogenase from Aromatoleum aromaticum., Kloer DP, Hagel C, Heider J, Schulz GE, Structure. 2006 Sep;14(9):1377-88. PMID:16962969
Page seeded by OCA on Sun Feb 3 10:38:38 2008
Categories: Azoarcus sp. eb1 | Ethylbenzene hydroxylase | Protein complex | Hagel, C. | Heider, J. | Kloer, D.P. | Schulz, G.E. | ACT | F3S | GOL | HEM | MD1 | MES | MGD | MO | PO4 | SF4 | Anaerobic hydrocarbon degradation | Dmso reductase family | Fe/s cluster | Mo-bismgd enzyme | Moco | Oxidoreductase
