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M9490400.TXT
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1994-09-19
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Document 0400
DOCN M9490400
TI The sequences of and distance between two cis-acting signals determine
the efficiency of ribosomal frameshifting in human immunodeficiency
virus type 1 and human T-cell leukemia virus type II in vivo.
DT 9411
AU Kollmus H; Honigman A; Panet A; Hauser H; Gesellschaft fur
Biotechnologische Forschung mbH, Braunschweig,; Federal Republic of
Germany.
SO J Virol. 1994 Sep;68(9):6087-91. Unique Identifier : AIDSLINE
MED/94335131
AB We have analyzed in cell culture the sequence elements that control the
level of ribosomal frameshifting in the human T-cell leukemia virus type
II (HTLV-2) gag-pro junction. The slippery sequence of HTLV-2 is
sufficient to dictate a basal level of frameshifting. This level is
enhanced by its upstream sequence context and by the downstream
stem-loop structure which is located at an optimal distance of 7 bases.
Frameshifting in human immunodeficiency virus gag-pol is similar to that
of HTLV-2 gag-pro. However, experiments using hybrid cassettes of HTLV-2
and human immunodeficiency virus type 1 frameshift elements show that
while the slippery sequence of HTLV-2 is less efficient, the stem-loop
structure is a more efficient enhancer.
DE Base Sequence *Gene Expression Regulation, Viral Genes, gag Genes,
Structural, Viral Hydrogen Bonding HIV-1/*GENETICS HTLV-II/*GENETICS
Molecular Sequence Data Nucleic Acid Conformation Regulatory
Sequences, Nucleic Acid Ribosomes/METABOLISM Structure-Activity
Relationship Support, Non-U.S. Gov't Translation, Genetic JOURNAL
ARTICLE
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).