Fluorescence associated with the type 3 copper center of laccase

FEBS Letters

Holwerda, Robert A.¹  Knaff, David B.¹  Sarkar, Hemanta K.¹  Wynn, R.Max¹ 

[1] Department of Chemistry, Texas Tech University, Lubbock, TX 79409, USA

关键词: Laccase;    Type 3 Cu;    Fluorescence;    Phosphorescence;   

DOI  :  10.1016/0014-5793(83)80240-3

学科分类：生物化学/生物物理

来源: John Wiley & Sons Ltd.

【 摘 要 】

Laccases isolated from the lacquer tree Rhus vernicifera and the fungus Polyporus versicolor show fluorescence emission near 420 nm and phosphorescence emission in the 440–465 nm region. The fluorescence and phosphorescence excitation spectra for both laccases show maxima in the 315–330 nm range, a spectral region corresponding to the absorbance maxima for the type 3 binuclear Cu centers of the two enzymes. Additional evidence is presented for the association of the newly discovered emissions with the type 3 Cu centers of the two laccases.

【 授权许可】

Unknown