Document 0419 DOCN M9490419 TI Detection and characterization of a functional complex of human immunodeficiency virus type 1 integrase and its DNA substrate by UV cross-linking. DT 9411 AU Yoshinaga T; Kimura-Ohtani Y; Fujiwara T; Shionogi Institute for Medical Science, Osaka, Japan. SO J Virol. 1994 Sep;68(9):5690-7. Unique Identifier : AIDSLINE MED/94335083 AB To analyze the association of the human immunodeficiency virus type 1 integrase (IN) protein with DNA substrates, we applied a shortwave UV cross-linking method to the in vitro integration system. Three photoadduct bands were detected on sodium dodecyl sulfate-polyacrylamide gels. The appearances of these photoadducts were examined with various substrates and under several incubation conditions. Our data suggest that one of these photoadducts is derived from the sequence- and strand-specific bound state of the early phase of the integration reaction before the 3' processing reaction. We also show that most of the photoadduct complexes are competent for integration even after UV irradiation. DE Base Sequence DNA Nucleotidyltransferases/*METABOLISM DNA-Binding Proteins/METABOLISM DNA, Viral/*METABOLISM Ethylmaleimide/CHEMISTRY HIV-1/*ENZYMOLOGY Molecular Sequence Data Oligodeoxyribonucleotides/CHEMISTRY Photochemistry Structure-Activity Relationship Time Factors Ultraviolet Rays *Virus Integration JOURNAL ARTICLE SOURCE: National Library of Medicine. NOTICE: This material may be protected by Copyright Law (Title 17, U.S.Code).