Assignment of the Fe‐Nge(His)stretching mode in the resonance Raman spectra of a monomeric insect cyanomethaemoglobin

FEBS Letters

Kerr, Ellen A.¹  Gersonde, Klaus²  Yu, Nai-Teng¹ 

[1] School of Chemistry, Georgia Institute of Technology Atlanta, GA 30332, USA;Abteilung Physiologische Chemie, Rheinisch- Westfälische Technische Hochschule (RWTH), D-5100 Aachen, FRG

关键词: Resonance Raman spectroscopy;    Cyanomethemoglobin;    Fe-Ne(His) stretching;    Monomeric hemoglobin;   

DOI  :  10.1016/0014-5793(84)81233-8

学科分类：生物化学/生物物理

来源: John Wiley & Sons Ltd.

【 摘 要 】

Resonance Raman (RR) spectra of the monomeric cyanomethaemoglobin CTT III from insect larvae of Chironomus thummi thummi are shown for the range of 200–550 cm⁻¹. By iron and cyanide isotope exchange a line varying between 307 cm⁻¹ for ⁵⁷Fe-¹³C¹⁵N and 311 cm⁻¹ for ⁵⁴Fe-¹²C¹⁴N, has been assigned to the Fe-N_ϵ stretching mode of this haem complex. The substitution of ⁵⁴Fe for ⁵⁷Fe has no effect on the Fe-C = N bending mode whereas it affects the Fe-CN stretching mode.

【 授权许可】

Unknown