Article
Using Tryptophan Mutants To Probe the Structural and Functional Status of BsSCO, a Copper Binding, Cytochrome c Oxidase Assembly Protein from Bacillus subtilis.
Biochemistry - 5 Dec 2017
Hussain Shina, Andrews Diann, Hill Bruce C
Abstract excerpt
The synthesis of cytochrome c oxidase protein from Bacillus subtilis (i.e., BsSCO) binds copper with picomolar affinity, which increases the protein's melting temperature (i.e., TM) by 20 °C. Here two native tryptophans (i.e., W36 and W101) are identified as major contributors to BsSCO's structural form, and their contributions to the stability, intrinsic fluorescence, and copper binding properties of BsSCO are...
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