Selective Binding of TAR RNA by a Tat-Derived β-Peptide
摘要:
The interaction between the HIV-1 Tat protein and the TAR RNA element in the nascent viral genomic transcript is required for viral replication. An 11-residue beta-peptide (1), an all-beta homologue of the Arg-rich region Tat 47-57, binds TAR RNA with K-d = 29 +/- 4 nM. A control beta-peptide (2) in which all Arg side chains are replaced by Lys side chains shows increased affinity but decreased specificity for wild-type vs bulge-deleted TAR RNA, as do the alpha-peptide analogues of 1 and 2.
Selective Binding of TAR RNA by a Tat-Derived β-Peptide
摘要:
The interaction between the HIV-1 Tat protein and the TAR RNA element in the nascent viral genomic transcript is required for viral replication. An 11-residue beta-peptide (1), an all-beta homologue of the Arg-rich region Tat 47-57, binds TAR RNA with K-d = 29 +/- 4 nM. A control beta-peptide (2) in which all Arg side chains are replaced by Lys side chains shows increased affinity but decreased specificity for wild-type vs bulge-deleted TAR RNA, as do the alpha-peptide analogues of 1 and 2.
Selective Binding of TAR RNA by a Tat-Derived β-Peptide
作者:Michael A. Gelman、Sara Richter、Hong Cao、Naoki Umezawa、Samuel H. Gellman、Tariq M. Rana
DOI:10.1021/ol034977v
日期:2003.10.1
The interaction between the HIV-1 Tat protein and the TAR RNA element in the nascent viral genomic transcript is required for viral replication. An 11-residue beta-peptide (1), an all-beta homologue of the Arg-rich region Tat 47-57, binds TAR RNA with K-d = 29 +/- 4 nM. A control beta-peptide (2) in which all Arg side chains are replaced by Lys side chains shows increased affinity but decreased specificity for wild-type vs bulge-deleted TAR RNA, as do the alpha-peptide analogues of 1 and 2.