Functional Roles of the Heme Architecture and Its Environment in Tetraheme Cytochrome c

H Akutsu, Y Takayama - Accounts of chemical research, 2007 - ACS Publications
… investigated tetraheme cytochrome is cytochrome c 3 (cyt c 3 ) … Cyt c 3 has been classified
as a class III c-type cytochrome. … the aromatic ring of Phe20 is parallel to the porphyrin ring of …

[9] Tetraheme cytochromes

IB Coutinho, AV Xavier - Methods in enzymology, 1994 - Elsevier
… IThe term cytochrome c3 has been informally used for the nomen… -c cytochromes isolated
from sulfatereducing bacteria. In this chapter, the term will refer to the tetraheme cytochrome

Heme packing motifs revealed by the crystal structure of the tetra-heme cytochrome c554 from Nitrosomonas europaea

TM Iverson, DM Arciero, BT Hsu, MSP Logan… - Nature structural …, 1998 - nature.com
… of cyt c554 differs substantially from that observed in either the tetra-heme cytochrome c 3
7 or the tetra-heme cytochrome … The aromatic side chain of Phe 130 lies within 4 Å of the …

Crystal structures at atomic resolution reveal the novel concept of “electron-harvesting” as a role for the small tetraheme cytochrome c

D Leys, TE Meyer, AS Tsapin, KH Nealson… - Journal of Biological …, 2002 - ASBMB
… produces a unique small tetraheme cytochrome c that is implicated in … of the small tetraheme
cytochrome c from Shewanella … aromatic ring system for interprotein heme-heme contacts. …

Molecular and structural basis of electron transfer in tetra-and octa-heme cytochromes

M Czjzek, F Payan, R Haser - Biochimie, 1994 - Elsevier
cytochrome c3.of DdN, as deduced from the X-ray analysis at 2.2 A resolution, along with a
preliminary comparison with the different tetra-heme cytochromes … the only aromatic residue …

The Solution Structure of a Tetraheme Cytochrome from Shewanella frigidimarina Reveals a Novel Family Structural Motif

VB Paixao, CA Salgueiro, L Brennan, GA Reid… - Biochemistry, 2008 - ACS Publications
… of the tetraheme cytochromes c 3 and instead has similarities with the tetraheme cytochrome
… Comparison of the tetraheme cytochromes from Shewanella shows a considerable diversity …

A unique aromatic residue modulates the redox range of a periplasmic multiheme cytochrome from Geobacter metallireducens

PC Portela, MA Silva, LR Teixeira… - Journal of Biological …, 2021 - ASBMB
… literature, the hemes in this family are numbered I, III, and IV, a designation that derives from
their superimposition with those of the structurally homologous tetraheme cytochrome c 3 ( …

Structure of the tetraheme cytochrome from Desulfovibrio desulfuricans ATCC 27774: X-ray diffraction and electron paramagnetic resonance studies

J Morais, PN Palma, C Frazao, J Caldeira, J LeGall… - Biochemistry, 1995 - ACS Publications
… The refined crystallographic structure of the tetraheme cytochrome C3Dd reported here … in
all known cytochrome C3 sequences), while in the second case, Tyr65 is the aromatic residue …

Role of π-Electron Systems in Stabilization of the Oxidized Tetraheme Architecture in Cytochrome c3

Y Takayama, M Taketa-Sato, H Komori… - Bulletin of the …, 2011 - academic.oup.com
… There are 14 aromatic residues and four heme rings as ³-electron systems in a 107-residue …
residues in all cytochromes c3, taking a unique structure, in which its aromatic ring is stacked …

Strategic Roles of Axial Histidines in Structure Formation and Redox Regulation of Tetraheme Cytochrome c3

Y Takayama, ND Werbeck, H Komori, K Morita… - Biochemistry, 2008 - ACS Publications
… This work will also provide a complete view of the roles of the aromatic residues in cyt c …
tetraheme architecture (small tetraheme cyt c) is more than 100 mV in comparison with that of cyt