The primary structure of cytochrome c-554 from the green photosynthetic bacterium Chloroflexus aurantiacus

Journal Article · Tue Dec 03 00:00:00 EST 1991 · Biochemistry; (United States)

DOI:https://doi.org/10.1021/bi00112a012· OSTI ID:5379218

Dracheva, S; Williams, J C; Blankenship, R E ^[1]; Van Driessche, G; Van Beeumen, J J ^[2]

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1. Arizona State Univ., Tempe (United States)
2. State Univ., Ghent (Belgium)

The complete nucleotide sequence of the cytochrome c-554 gene from the green photosynthetic bacterium Chloroflexus aurantiacus has been determined. The derived amino acid sequence showed that the cytochrome precursor protein consists of 414 residues and contains 4-Cys-X-X-Cys-His- heme binding motifs. The only regions of the cytochrome c-554 sequence that were found to be significantly similar to the sequences of cytochromes from other organisms were the heme binding sites. The highest similarity was found with the heme binding segments in the four-heme reaction center cytochrome subunit from the purple photosynthetic bacterium Rhodopseudomonas viridis. The importance of this similarity for the evolutionary relationship between Chloroflexus and the purple bacteria is discussed.

• OSTI ID: 5379218
• Journal Information: Biochemistry; (United States), Vol. 30:48; ISSN 0006-2960
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
CYTOCHROMES
AMINO ACID SEQUENCE
GENES
DNA SEQUENCING
PHOTOSYNTHETIC BACTERIA
BIOLOGICAL EVOLUTION
HEME
THERMOPHILIC CONDITIONS
CARBOXYLIC ACIDS
HETEROCYCLIC ACIDS
HETEROCYCLIC COMPOUNDS
MOLECULAR STRUCTURE
ORGANIC ACIDS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
PIGMENTS
PORPHYRINS
PROTEINS
STRUCTURAL CHEMICAL ANALYSIS
140505* - Solar Energy Conversion- Photochemical
Photobiological
& Thermochemical Conversion- (1980-)