title: Structural analysis of human immunodeficiency virus type 1 CRF01_AE protease in complex with the substrate p1-p6.
abstract: The effect of amino acid variability between human immunodeficiency virus type 1 (HIV-1) clades on structure and the emergence of resistance mutations in HIV-1 protease has become an area of significant interest in recent years. We determined the first crystal structure of the HIV-1 CRF01_AE protease in complex with the p1-p6 substrate to a resolution of 2.8 A. Hydrogen bonding between the flap hinge and the protease core regions shows significant structural rearrangements in CRF01_AE protease compared to the clade B protease structure.
authors.affiliation: Department of Biochemistry and Molecular Pharmacology, University of Massachusetts Medical School, 364 Plantation Street, Worcester, MA 01605, USA.
authors.forename: Rajintha M
authors.initials: RM
authors.lastname: Bandaranayake
authors.forename: Moses
authors.initials: M
authors.lastname: Prabu-Jeyabalan
authors.forename: Junko
authors.initials: J
authors.lastname: Kakizawa
authors.forename: Wataru
authors.initials: W
authors.lastname: Sugiura
authors.forename: Celia A
authors.initials: CA
authors.lastname: Schiffer
mesh_terms: D000595:Amino Acid Sequence; D003460:Crystallization; D014644:Genetic Variation; D016333:HIV Protease / Q000235:genetics* / Q000378:metabolism; D015497:HIV-1 / Q000201:enzymology*; D006860:Hydrogen Bonding; D008958:Models, Molecular; D008969:Molecular Sequence Data; D011487:Protein Conformation; D054301:gag Gene Products, Human Immunodeficiency Virus / Q000235:genetics / Q000378:metabolism
chemical_list: D054301:gag Gene Products, Human Immunodeficiency Virus; D016333:HIV Protease