Nucleic-acid-chaperone activity of retroviral nucleocapsid proteins: significance for viral replication.
Retrovirus particles contain a small, basic protein, the nucleocapsid (NC) protein, that possesses 'nucleic acid chaperone' activity--that is, the NC protein can catalyze the rearrangement of a nucleic acid molecule into the conformation that has the maximal number of base pairs. The molecular mechanism that underlies this effect is not understood. Because the chaperone activity is apparently crucial during the infectious process, NC is a potential target for antiviral therapy.
Retroviral Genetics Section, NCI-Frederick Cancer Research and Development Center, Frederick, MD 21702, USA. rein@mail.ncifcrf.gov
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A
Rein
L E
LE
Henderson
J G
JG
Levin
D000595:Amino Acid Sequence; D015683:Gene Products, gag / Q000378:metabolism; D008958:Models, Molecular; D008969:Molecular Sequence Data; D009696:Nucleic Acids / Q000378:metabolism*; D019590:Nucleocapsid Proteins / Q000737:chemistry* / Q000235:genetics / Q000378:metabolism*; D011487:Protein Conformation; D012367:RNA, Viral / Q000235:genetics / Q000378:metabolism; D012194:RNA-Directed DNA Polymerase / Q000235:genetics / Q000378:metabolism; D012190:Retroviridae / Q000235:genetics*; D014779:Virus Replication
D015683:Gene Products, gag; D009696:Nucleic Acids; D019590:Nucleocapsid Proteins; D012367:RNA, Viral; D012194:RNA-Directed DNA Polymerase