Selective binding of TAR RNA by a tat-derived β-peptide
Selective binding of TAR RNA by a tat-derived β-peptide
复制标题
DOI:
10.1021/ol034977v
复制
发表时间:
2003-10-02
期刊:
影响因子:
5.2
通讯作者:
Rana, TM
中科院分区:
文献类型:
--
作者:
Gelman, MA;Richter, S;Rana, TM
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.