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Corresponding Author

Jun wei ZHENG

Abstract

The redox properties of iso?1?yeast cytochrome c and its mutant F82H were studied by surface?enhanced Raman spectroscopy and cyclic voltammetry. The results showed that the replacement of phenylalanine?82 with histidine led to a more stable global structure of the protein. A negative shift in the redox potential of the mutant relative to that of wild type protein is ascribed to a ligand switching reaction during the redox processes.

Publication Date

2001-02-28

Online Available Date

2001-02-28

Revised Date

2001-02-28

Received Date

2001-02-28

References

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[3] GuoL ,HillHAO .Directelectrochemistryofproteinsandenzymes[J].Adv .Inorg .Chem .,1991,36 :341.

[4 ] SchejterA ,TalerG ,NavonG ,etal.Oxidationstate_inducedchangeofironligandinthephenylalanine_82tohistidinemutantofyeastiso_1_cytochromec[J].J .Am .Chem .Soc .1996 ,118:4 77.

[5] SorrellTN ,MartinPK ,BowdenEF .Anovel,functionvariantofcytochromec :replacementofthehisti dineligandwitharginineviasite_directedmutangenesis[J].J .Am .Chem .Soc .,1989,111:76 6 .

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