Mitochondrial cytochrome b sequence data from 15 species of herons (Aves: Ardeidae), representing 13 genera, were compared with DNA hybridization data of single-copy nuclear DNA (scnDNA) from the same species in a taxonomic congruence assessment of heron phylogeny. The two data sets produced a partially resolved, completely congruent estimate of phylogeny with the following basic structure: (Ti...

4.3. Variability in cytochrome groups. . . . . . . . . . . . . . 4.4. List of cytochromes . . . . . . . . . . . . . . . . . . . . . . 4.4.1. Cytochrome-a group . . . . . . . . . . . . . . . . . 4.4.2. Cytochrome-b group . . . . . . . . . . . . . . . . . 4.4.3. Cytochrome-c group . . . . . . . . . . . . . . . . . 4.4.4. Cytochrome-d group . . . . . . . . . . . . . . . . . 5. Non-heme iron protei...

The presence of cytochrome cl as a part of the respiratory chain was first reported in 1940 by Yakushiji and Okunuki (1). They concluded from visual spectroscopic observations of heart muscle preparations that this hemoprotein mediates the reactions between cytochromes b and c, as well as between cytochromes b and a. The validity of Yakushiji and Okunuki’s work was questioned by Slater (2), who...

Antimycin, a specific and highly potent inhibitor of electron transfer in the cytochrome b-c1 segment of the mitochondrial respiratory chain, does not inhibit reduction of cytochrome c1 by succinate in isolated succinate-cytochrome c reductase complex under conditions where the respiratory chain complex undergoes one oxidation-reduction turnover. If a slight molar excess of cytochrome c is adde...

Mitochondria contain their own genetic system to express a small number of hydrophobic polypeptides, including cytochrome b, an essential subunit of the bc(1) complex of the respiratory chain. In this paper, we show in yeast that Cbp3, a bc(1) complex assembly factor, and Cbp6, a regulator of cytochrome b translation, form a complex that associates with the polypeptide tunnel exit of mitochondr...

NADPH oxidase activity was solubilized by detergent treatment of subcellular particles obtained from guinea-pig peritoneal macrophages stimulated with phorbol myristate acetate. Gel filtration of the material containing the NADPH oxidase activity gave two peaks of proteins, one of which eluted with the void and the other with the included volume of an AcA 22 column. The material eluted in the v...

Veritable identification and differentiation of avian species is a vital step in conservative, taxonomic, forensic, legal and other ornithological interventions. Therefore, this study involved the application of molecular approach to identify some avian species i.e. Chicken (Gallus gallus), Muskovy duck (Cairina moschata), Japanese quail (Coturnix japonica), Laughing dove (Streptopelia senegale...

Sergentomyia sintoni is the natural vector of Sauroleishmania species of lizards. This sandfly isabundance in and around the burrows of great gerbils. S. sintoni was collected from peridomestic animalshelters, inside and around houses and also from the nearby burrows of the gerbil reservoir hosts,Rhombomys opimus, in several provinces of Iran. Mitochondrial Cytochrome b (Cyt b) of sandflies, wh...

Irradiating the mycelium of Neurospora crassa with moderate intensities of blue light causes a reversible photoreduction of a b-type cytochrome. The action spectrum for the photoreduction of cytochrome b is very similar to the absorption spectrum of flavin pigments. Prolonged irradiation of the mycelium with strong blue light irreversibly bleaches flavin-like pigments and as these pigments are ...