title: Occurrence of a single helix of the collagen type in globular proteins.
abstract: The occurrence of an eight-residue long segment of polypeptide chain in collagen helical conformation has been detected in bacteriochlorophyll a-protein by the application of an algorithm for identifying secondary structures in globular proteins from their alpha-carbon positions. This segment spans residues 277 to 284 of the protein and is the longest known stretch of collagen helix to be observed in globular proteins.
mesh_terms: D000595:Amino Acid Sequence; D001426:Bacterial Proteins; D003094:Collagen; D008433:Mathematics; D008958:Models, Molecular; D011487:Protein Conformation
chemical_list: D001426:Bacterial Proteins; C026083:bacteriochlorophyll A proteins, Bacteria; D003094:Collagen