Multifunctional Cytochrome c: Learning New Tricks from an Old Dog

D Alvarez-Paggi, L Hannibal, MA Castro… - Chemical …, 2017 - ACS Publications
Cytochrome c (cyt c) is a small soluble heme protein characterized by a relatively flexible
structure, particularly in the ferric form, such that it is able to sample a broad conformational …

Pseudocontact shifts in biomolecular NMR spectroscopy

T Müntener, D Joss, D Häussinger… - Chemical Reviews, 2022 - ACS Publications
Paramagnetic centers in biomolecules, such as specific metal ions that are bound to a
protein, affect the nuclei in their surrounding in various ways. One of these effects is the …

NMR spectroscopy of paramagnetic metalloproteins

I Bertini, C Luchinat, G Parigi, R Pierattelli - ChemBioChem, 2005 - Wiley Online Library
This article deals with the solution structure determination of paramagnetic metalloproteins
by NMR spectroscopy. These proteins were believed not to be suitable for NMR …

The chemistry and biochemistry of heme c: functional bases for covalent attachment

SEJ Bowman, KL Bren - Natural product reports, 2008 - pubs.rsc.org
Covering: up to July 2008 A discussion of the literature concerning the synthesis, function,
and activity of hemec-containing proteins is presented. Comparison of the properties of …

Structure of a mitochondrial cytochrome c conformer competent for peroxidase activity

LJ McClelland, TC Mou… - Proceedings of the …, 2014 - National Acad Sciences
At the onset of apoptosis, the peroxidation of cardiolipin at the inner mitochondrial
membrane by cytochrome c requires an open coordination site on the heme. We report a …

Nitration of solvent-exposed tyrosine 74 on cytochrome c triggers heme iron-methionine 80 bond disruption: nuclear magnetic resonance and optical spectroscopy …

LA Abriata, A Cassina, V Tortora, M Marín… - Journal of Biological …, 2009 - ASBMB
Cytochrome c, a mitochondrial electron transfer protein containing a hexacoordinated heme,
is involved in other physiologically relevant events, such as the triggering of apoptosis, and …

Studies of ferric heme proteins with highly anisotropic/highly axial low spin (S = 1/2) electron paramagnetic resonance signals with bis‐Histidine and histidine …

G Zoppellaro, KL Bren, AA Ensign… - Biopolymers …, 2009 - Wiley Online Library
Six‐coordinated heme groups are involved in a large variety of electron transfer reactions
because of their ability to exist in both the ferrous (Fe2+) and ferric (Fe3+) state without any …

Viscosity-dependent protein dynamics

IJ Finkelstein, AM Massari, MD Fayer - Biophysical journal, 2007 - cell.com
Spectrally resolved stimulated vibrational echo spectroscopy is used to investigate the
dependence of fast protein dynamics on bulk solution viscosity at room temperature in four …

Tools for resolving complexity in the electron transfer networks of multiheme cytochromesc

MA Firer-Sherwood, KD Bewley, JY Mock… - Metallomics, 2011 - academic.oup.com
Examining electron transfer between two proteins with identical spectroscopic signatures is
a challenging task. It is supposed that several multiheme cytochromes in Shewanella …

Chemical bonding and aromaticity in metalloporphyrins1,2

F Feixas, M Sola, M Swart - Canadian Journal of Chemistry, 2009 - cdnsciencepub.com
We report here the chemical bonding and aromaticity patterns in metalloporphyrins, which
were obtained with density functional theory (DFT) calculations at the OPBE/TZP level. This …