Abstract:
:Resonance Raman spectra with Q-band excitation are reported for microperoxidase-11, the cytochrome c analog. Spectra were acquired in the mid-frequency range for the oxidized, and reduced forms of the undecapeptide, as well as for the imidazole and carbonyl complexes. Oxidation and spin state marker bands of the undecapeptides are consistent with a six-coordinate, low spin iron in both oxidation states. Porphyrin core size correlations yield a porphyrin-centre to pyrrole-nitrogen distance of 2.00 A for MP11, suggestive of a six-coordinate species in a distorted heme environment. Molecular dynamics results show that the non-planarity of the heme of the parent cytochrome is conserved in the microperoxidase and its carbonmonoxy analog.
journal_name
J Biomol Struct Dynjournal_title
Journal of biomolecular structure & dynamicsauthors
Laberge M,Vreugdenhil AJ,Vanderkooi JM,Butler ISdoi
10.1080/07391102.1998.10508999subject
Has Abstractpub_date
1998-06-01 00:00:00pages
1039-50issue
6eissn
0739-1102issn
1538-0254journal_volume
15pub_type
杂志文章abstract::The nature of the H-bonds between the human protein HLA-DR1 (DRB*0101) and the hemagglutinin peptide HA306-318 has been studied using the Quantum Theory of Atoms in Molecules for the first time. We have found four H-bond groups: one conventional CO··HN bond group and three nonconventional CO··HC, π··HC involving aroma...
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journal_title:Journal of biomolecular structure & dynamics
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journal_title:Journal of biomolecular structure & dynamics
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