Reverse transcriptase-like activity in Trypanosoma cruzi

被引:7
作者
Gonzalez, CI
Thomas, MC
Martin, F
Alcami, J
Alonso, C
Lopez, MC
机构
[1] CSIC,INST PARASITOL & BIOMED LOPEZ NEGRA,DEPT MOL BIOL,GRANADA 18001,SPAIN
[2] HOSP 12 OCTUBRE,CTR INVEST,E-28041 MADRID,SPAIN
[3] UNIV AUTONOMA MADRID,CSIC,CTR BIOL MOL,E-28049 MADRID,SPAIN
关键词
Trypanosoma cruzi; RNA dependent polymerase; RNA homopolymers; RT-like inhibitors;
D O I
10.1016/S0001-706X(96)00611-0
中图分类号
R38 [医学寄生虫学]; Q [生物科学];
学科分类号
07 ; 0710 ; 09 ; 100103 ;
摘要
The use of specific synthetic RNA homopolymers as templates and short oligonucleotides as primers has allowed evidence of the existence of a reverse transcriptase-like activity in Trypanosoma cruzi, to be revealed. The RNA:DNA products derived from this reaction are of approximately 110 nucleotides in length. The enzyme has greater affinity for poly(rA)/ oligo(dT) templates than for poly(rC)/oligo(dG) having a 20 mM Mg+ (+) ion requirement. The detected reverse transcriptase-like activity is not affected by aphidicolin and ddTTP but is inhibited by actinomycin D, novobiocin, rifamycin SV and AZT. (C) 1997 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:117 / 126
页数:10
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