Cytochrome b Group
Research News and Information

Sunday, November 22, 2009

Importance of the conserved lysine 83 residue of Zea mays cytochrome b(561) for ascorbate-specific transmembrane electron transfer as revealed by site-directed mutagenesis studies.

8 Nov 2009 Cytochromes b(561), a novel class of transmembrane electron transport proteins residing in a large variety of eukaryotic cells, have a number of common structural features including six hydrophobic transmembrane alpha-helices and two heme ligation ... Read more...

Monitoring the iron status of the ferroxidase center of Escherichia coli bacterioferritin using fluorescence spectroscopy.

27 Sep 2009 Ferritins solubilize and detoxify the essential metal iron through formation of a ferric mineral within the protein's central cavity. Key to this activity is an intrasubunit catalytic dinuclear iron center called the ferroxidase center. Here we show ... Read more...

The cytochrome ba3 oxygen reductase from Thermus thermophilus uses a single input channel for proton delivery to the active site and for proton pumping.

8 Sep 2009 The heme-copper oxygen reductases are redox-driven proton pumps that generate a proton motive force in both prokaryotes and mitochondria. These enzymes have been divided into 3 evolutionarily related groups: the A-, B- and C-families. Most ... Read more...

Latest indexed articles for 'Cytochrome b Group'

These are the very latest articles for this heading:

• Importance of the conserved lysine 83 residue of Zea mays cytochrome b(561) for ascorbate-specific transmembrane electron transfer as revealed by site-directed mutagenesis studies. 8 Nov 2009
• Monitoring the iron status of the ferroxidase center of Escherichia coli bacterioferritin using fluorescence spectroscopy. 27 Sep 2009
• The cytochrome ba3 oxygen reductase from Thermus thermophilus uses a single input channel for proton delivery to the active site and for proton pumping. 8 Sep 2009
• Heme cavity dynamics of photodissociated CO from ba3-cytochrome c oxidase: the role of ring-D propionate. Sep 2009
• Binding of Pseudomonas aeruginosa apobacterioferritin-associated ferredoxin to bacterioferritin B promotes heme mediation of electron delivery and mobilization of core mineral iron. 9 Aug 2009
• Riboflavin kinase couples TNF receptor 1 to NADPH oxidase. 27 Jul 2009
• Atomistic modeling of macromolecular crowding predicts modest increases in protein folding and binding stability. 6 Jul 2009
• A superprotein triangle driven by nickel(II) coordination: exploiting non-natural metal ligands in protein self-assembly. 6 Jul 2009
• A helix swapping study of two protein cages. 21 Jun 2009
• Respiration of Escherichia coli can be fully uncoupled via the nonelectrogenic terminal cytochrome bd-II oxidase. 17 Jun 2009
• A novel circuit overrides Adr1p control during expression of Saccharomyces cerevisiae 2-trans-enoyl-ACP reductase Etr1p of mitochondrial type 2 fatty acid synthase. 9 Jun 2009
• Interfacial redox processes of cytochrome b562. 30 May 2009
• Increased myocardial NAD(P)H oxidase-derived superoxide causes the exacerbation of postinfarct heart failure in type 2 diabetes. 20 May 2009
• Identification and characterization of a cytochrome b559 Synechocystis 6803 mutant spontaneously generated from DCMU-inhibited photoheterotrophical growth conditions. 19 May 2009
• Structural basis for iron mineralization by bacterioferritin. 18 May 2009
• Structural and mechanistic studies of a stabilized subunit dimer variant of Escherichia coli bacterioferritin identify residues required for core formation. 11 May 2009
• Interrogating the molecular details of the peroxiredoxin activity of the Escherichia coli bacterioferritin comigratory protein using high-resolution mass spectrometry. 10 May 2009
• orf4 of the Bacillus cereus sigB gene cluster encodes a general stress-inducible Dps-like bacterioferritin. 6 May 2009
• Photo-catalytic oxidation of a di-nuclear manganese centre in an engineered bacterioferritin 'reaction centre'. May 2009
• Pivotal Advance: Eosinophilia in the MES rat strain is caused by a loss-of-function mutation in the gene for cytochrome b(-245), alpha polypeptide (Cyba). 28 Apr 2009

See a longer list of these articles.

Technical information about 'Cytochrome b Group'

Definition: Cytochromes (electron-transporting proteins) with protoheme (HEME B) as the prosthetic group.

Registry Number: 0

Descriptor UI: D003573

Alternative terms: Cytochrome b Group; Group, Cytochrome b; b Group, Cytochrome; Cytochromes, Heme b; Heme b Cytochromes; b Cytochromes, Heme; Cytochromes Type b; Type b, Cytochromes; b, Cytochromes Type;

Allowable Qualifiers: administration & dosage; adverse effects; analysis; antagonists & inhibitors; biosynthesis; blood; cerebrospinal fluid; chemical synthesis; classification; deficiency; diagnostic use; drug effects; economics; genetics; history; immunology; isolation & purification; metabolism; pharmacokinetics; pharmacology; physiology; poisoning; radiation effects; secretion; standards; supply & distribution; therapeutic use; toxicity; ultrastructure; urine; chemistry; contraindications;

Tree Number: D08.244.187; D12.776.422.220.187;

History Note: 2004(1983);

Technical Notes: /biosyn /physiol permitted; spell in titles & translations with lowercase b: cytochrome b; do not confuse with CYTOCHROMES B