1ue8: Difference between revisions

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[[Image:1ue8.jpg|left|200px]]
{{Seed}}
[[Image:1ue8.png|left|200px]]


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{{STRUCTURE_1ue8|  PDB=1ue8  |  SCENE=  }}  
{{STRUCTURE_1ue8|  PDB=1ue8  |  SCENE=  }}  


'''Crystal Structure of Thermophilic Cytochrome P450 from Sulfolobus tokodaii'''
===Crystal Structure of Thermophilic Cytochrome P450 from Sulfolobus tokodaii===




==Overview==
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Cytochrome P450 from thermoacidophilic crenarchaeon, Sulfolobus tokodaii strain 7 (P450st) has been expressed in Escherichia coli and purified at high homogeneity. P450st was crystallized in an orthorhombic system with the space group P2(1)2(1)2(1) and cell dimensions of a=53.6 A, b=55.1 A, and c=130.9 A, and the structure was determined at a 3.0 A resolution. The final R-factor was 0.194 (Rfree=0.235). Structural comparison with cytochrome P450 from S. solfataricus (CYP119) suggests that the region composed of the F to G helices and the Cl- binding site is responsible for the affinity for a ligand coordinating heme iron. Direct electrochemistry of P450st in a didodecyldimethylammonium bromide (DDAB) film on a plastic formed carbon (PFC) electrode has also been demonstrated. A quasi-reversible redox response has been observed even at elevated temperatures of up to 80 degrees C.
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==About this Structure==
==About this Structure==
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[[Category: Alpha-domain]]
[[Category: Alpha-domain]]
[[Category: Structural genomic]]
[[Category: Structural genomic]]
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