The observed inhibitory potency of 3'-azido-3'-deoxythymidine 5'-triphosphate for HIV-1 reverse transcriptase depends on the length of the poly(rA) region of the template.
The observed inhibitory potency of 3'-azido-3'-deoxythymidine 5'-triphosphate for HIV-1 reverse transcriptase depends on the length of the poly(rA) region of the template.
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观察到的 3-叠氮基-3-脱氧胸苷 5-三磷酸对 HIV-1 逆转录酶的抑制效力取决于模板的聚 (rA) 区域的长度。
DOI:
10.1021/bi00120a013
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发表时间:
1992
期刊:
影响因子:
2.9
通讯作者:
Kenyon,GL
中科院分区:
文献类型:
--
作者:
Ma,QF;Bathurst,IC;Barr,PJ;Kenyon,GL
Revised Manuscript Received October 29, 1991 abstract: The inhibitory potency of 3'-azido-3'-deoxythymidine S'-triphosphate (AZTTP) against HIV-1 reverse transriptase (HIV-1 RT) has been further evaluated. The results indicate that the previously reported low Ki values for AZTTP against HIV-1 RT (2-35 nM) are due neither to the direct tight binding of AZTTP to HIV-1 RT nor to the interaction of the enzyme with AZTMP moiety terminated primer-templates, but instead they are an artifact of the use of a homotemplate-primer [poly (rA)* oligo (dT)]. With a set of RNAs of defined sequence as templates, we demonstrate that the observed K, value for AZTTP depends on the length of the poly (rA) region following the primer in the RNA template. The more adenosyl residues in the RNA template that are available for processive incorporation of TMP moieties, the lower is the observed Kj value for AZTTP. Since the potencies of new inhibitors of HIV-1 RT are usually compared with that for AZTTP, these results have important consequences for the process of discovery of new HIV inhibitors that are of potential use in AIDS therapy.3'-Azido-3'-deoxythymidine (AZT), 1 the first drug used clinically for the treatment of human immunodeficiency virus (HIV) infection, is considered to be a prodrug that is converted into 3'-azido-3'-deoxythymidine 5'-triphosphate (AZTTP) by cellular kinases (Mitsuya et al., 1985; Fischl et al., 1987; Furman et al., 1986). In vitro kinetic studies show that AZTTP is a very potent competitive inhibitor of HIV-1 RT with observed K, values ranging from 2 to 35 nM (Furman et al., 1986; Kedar et al., 1990; Reardon et al., 1990; Eriksson
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影响因子:
4.9
作者:
L. Vrang;B. Oberg;J. Löwer;R. Kurth
通讯作者:
R. Kurth
影响因子:
7.6
作者:
L. Vrang;H. Bazin;G. Remaud;J. Chattopadhyaya;B. Öberg
通讯作者:
B. Öberg
DOI:
10.1073/pnas.83.21.8333
发表时间:
1986-11-01
影响因子:
11.1
作者:
FURMAN, PA;FYFE, JA;BARRY, DW
通讯作者:
BARRY, DW
DOI:
--
发表时间:
1987
期刊:
影响因子:
--
作者:
E. Matthes;C. Lehmann;D. Scholz;M. Janta;K. Gaertner;H. Rosenthal;P. Langen
通讯作者:
P. Langen
DOI:
10.1016/0006-291x(90)91187-w
发表时间:
1990
影响因子:
3.1
作者:
Bathurst,IC;Moen,LK;Lujan,MA;Gibson,HL;Feucht,PH;Pichuantes,S;Craik,CS;Santi,DV;Barr,PJ
通讯作者:
Barr,PJ