ArticleJournal of inorganic biochemistry2018
Effect of redox partner binding on CYP101D1 conformational dynamics.
Article in Journal of inorganic biochemistry, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
2 citing papers in PubMed, 2 citations in OpenAlex.
- Cooperative Substrate Binding Controls Catalysis in Bacterial Cytochrome P450terp (CYP108A1).Journal of the American Chemical Society · 2023Article
- Substrate mediated redox partner selectivity of cytochrome P450.Chemical communications (Cambridge, England) · 2018Article
Corrections and comments
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Authors and funding
2 authors at 1 institution in 1 country.
Funding
Abstract
We have compared the thermodynamics of substrate and redox partner binding of P450cam to its close homologue, CYP101D1, using isothermal titration calorimetry (ITC). CYP101D1 binds camphor about 10-fold more weakly than P450cam which is consistent with the inability of camphor to cause a complete low- to high-spin shift in CYP101D1. Even so molecular dynamics simulations show that camphor is very stable in the CYP101D1 active site similar to P450cam. ITC data on the binding of the CYP101D1 ferredoxin redox partner (abbreviated Arx) shows that the substrate-bound closed state of CYP101D1 binds Arx more tightly than the substrate-free open form. This is just the opposite to P450cam where Pdx (ferredoxin redox partner of P450cam) favors binding to the P450cam open state. In addition, CYP101D1-Arx binding has a large negative ΔS while the P450cam-Pdx has a much smaller ΔS indicating that interactions at the docking interface are different. The most obvious difference is that PDX
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