title: Geometry of proline-containing alpha-helices in proteins.
abstract: Crystal structure analysis of proline-containing alpha-helices in proteins has been carried out. High resolution crystal structures were selected from the Protein Data Bank. Apart from the standard internal parameters, some parameters which are specifically related to the bend in the helix due to proline have been developed and analyzed. Finally the position and nature of these helices and their interactions with the rest of the protein have been analyzed.
authors.affiliation: Molecular Biophysics Unit, Indian Institute of Science, Bangalore.
authors.forename: R
authors.initials: R
authors.lastname: Sankararamakrishnan
authors.forename: S
authors.initials: S
authors.lastname: Vishveshwara
mesh_terms: D000595:Amino Acid Sequence; D003460:Crystallization; D008565:Membrane Proteins / Q000737:chemistry; D008969:Molecular Sequence Data; D011392:Proline / Q000032:analysis / Q000737:chemistry*; D011506:Proteins / Q000737:chemistry* / Q000648:ultrastructure
chemical_list: D008565:Membrane Proteins; D011506:Proteins; D011392:Proline