Resonance Raman spectroscopy of metal-substituted bacteriochlorophylls: characterization of Raman bands sensitive to bacteriochlorin conformation

Author(s):  
Arne Näveke ◽  
Karine Lapouge ◽  
James N. Sturgis ◽  
Gerhard Hartwich ◽  
Ingrid Simonin ◽  
...  
Biochemistry ◽  
1990 ◽  
Vol 29 (43) ◽  
pp. 10135-10140 ◽  
Author(s):  
Randy W. Larsen ◽  
Wei Li ◽  
Robert A. Copeland ◽  
Stephan N. Witt ◽  
Bih Show Lou ◽  
...  

2013 ◽  
Vol 17 (03) ◽  
pp. 240-246
Author(s):  
Biswajit Pal ◽  
Katsuhiro Tanaka ◽  
Shigeo Takenaka ◽  
Tajith B. Shaik ◽  
Teizo Kitagawa

Mammalian soluble Guanylate Cyclase (sGC), working as a physiological NO receptor, is investigated using resonance Raman spectroscopy for NO bound states with different saturation levels in the presence and absence of effectors. The Fe–NO (νFe–NO) and N–O (νN-O) stretching bands appeared at 521 and 1681 cm-1, respectively, without effectors, but νN-O was split into 1681 and 1699 cm-1 in the presence of GTP and shifted to 1687 cm-1 in the presence of YC-1 or BAY 41-2272, while νFe-NO remained unaltered. The split two νN-O bands were independent of NO saturation levels. GTP or YC-1/BAY 41-2272 altered the vinyl and propionate bending modes from 423 to 399 cm-1 and 376 to 367 cm-1, respectively. Based on these observations, allosteric effects on NO …protein interactions are discussed.


Biochemistry ◽  
1994 ◽  
Vol 33 (23) ◽  
pp. 7398-7407 ◽  
Author(s):  
Giulietta Smulevich ◽  
Mauro Paoli ◽  
Julian F. Burke ◽  
Andrew T. Smith ◽  
Stephen A. Sanders ◽  
...  

Biopolymers ◽  
2006 ◽  
Vol 82 (4) ◽  
pp. 306-311 ◽  
Author(s):  
U. Neugebauer ◽  
U. Schmid ◽  
K. Baumann ◽  
U. Holzgrabe ◽  
W. Ziebuhr ◽  
...  

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