J Virol. 1990 Jul;64(7):3234-9. Unique Identifier : AIDSLINE
Two major protein-binding sites within the negative regulatory element
of the human immunodeficiency virus type 1 long terminal repeat have
been identified. One (site B) contained a palindromic sequence with
homology to steroid/thyroid hormone response elements but was distinct
from previously described binding sites of this class. A novel T-cell
protein recognized the palindromic sequence within site B and also bound
estrogen- or thyroid hormone-response elements with lower affinity. A
7-base-pair mutation in the site B palindrome, which destroyed protein
binding, resulted in increased expression from the human
immunodeficiency virus type 1 long terminal repeat in T cells.
Base Sequence Cell Line DNA Mutational Analysis DNA-Binding
Proteins/*PHYSIOLOGY *Gene Expression Regulation, Viral Human
HIV-1/*GENETICS In Vitro Methylation Molecular Sequence Data Nuclear
Proteins/*PHYSIOLOGY *Regulatory Sequences, Nucleic Acid *Repetitive
Sequences, Nucleic Acid Repressor Proteins/PHYSIOLOGY Support,
Non-U.S. Gov't T-Lymphocytes/*MICROBIOLOGY JOURNAL ARTICLE