Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
INTERMOLECULAR BINDING-SITES OF HUMAN-IMMUNODEFICIENCY-VIRUS TYPE-1 REV PROTEIN DETERMINED BY PROTEIN FOOTPRINTING
Autore:
JENSEN TH; LEFFERS H; KJEMS J;
Indirizzi:
AARHUS UNIV,DEPT MOLEC BIOL,CF MOLLERS ALLE,BLDG 130 DK-8000 AARHUS CDENMARK AARHUS UNIV,DEPT MOLEC BIOL DK-8000 AARHUS C DENMARK AARHUS UNIV,DEPT MED BIOCHEM DK-8000 AARHUS C DENMARK
Titolo Testata:
The Journal of biological chemistry
fascicolo: 23, volume: 270, anno: 1995,
pagine: 13777 - 13784
SICI:
0021-9258(1995)270:23<13777:IBOHTR>2.0.ZU;2-L
Fonte:
ISI
Lingua:
ENG
Soggetto:
ENV MESSENGER-RNA; GENE-EXPRESSION REQUIRES; HIV-1 REV; RESPONSE ELEMENT; TRANS-ACTIVATOR; STRUCTURED REGION; CARBOXY-TERMINUS; ESCHERICHIA-COLI; TARGET SEQUENCE; AMINO-ACIDS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
54
Recensione:
Indirizzi per estratti:
Citazione:
T.H. Jensen et al., "INTERMOLECULAR BINDING-SITES OF HUMAN-IMMUNODEFICIENCY-VIRUS TYPE-1 REV PROTEIN DETERMINED BY PROTEIN FOOTPRINTING", The Journal of biological chemistry, 270(23), 1995, pp. 13777-13784

Abstract

Human immunodeficiency virus encodes the regulatory protein Rev, which is required far expression of viral structural proteins, It binds toan RNA element (RRE) in the viral transcript and up-regulates the cyto plasmic appearance of unspliced and singly spliced viral mRNA We have studied the structure of Rev alone and complexed with the RRE and two monoclonal antibodies, using a protein footprinting approach, The method involves radioactive labeling at the C-terminal end of Rev fusionprotein followed by limited proteolysis under native conditions, using 10 different proteinases. Rev protein was mainly cleaved within the basic domain and in the C-terminal part, The periodicity of the proteolytic cleavages within the basic domain strongly suggests that it forms an alpha-helical structure with one side facing the solvent, In the presence of RRE, these cleavages became significantly reduced. In addition, strong protection was observed at position 66 outside the basic domain, As a control for the specificity of the footprinting reaction,we confirmed the position of the epitopes for two monoclonal antibodies, This protein footprinting methodology is generally applicable to other proteins for which terminal modifications are acceptable, and provides a useful tool for mapping structure, substrate binding, and conformational changes.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 26/09/20 alle ore 08:45:27