ATPase Activity of UvrB Protein from Thermus thermophilus HB8 and Its Interaction with DNA (*)
ATPase Activity of UvrB Protein from Thermus thermophilus HB8 and Its Interaction with DNA (*)
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嗜热栖热菌 HB8 的 UvrB 蛋白的 ATP 酶活性及其与 DNA 的相互作用 (*)
DOI:
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发表时间:
1996
影响因子:
4.8
通讯作者:
S. Kuramitsu
中科院分区:
文献类型:
--
作者:
R. Kato;N. Yamamoto;Keiichi Kito;S. Kuramitsu
Many living organisms remove wide range of DNA lesions from their genomes by the nucleotide excision repair system. The uvrB gene, which plays an essential role in the prokaryotic excision repair, was cloned from an extremely thermophilic bacterium, Thermus thermophilus HB8. Its nucleotide sequence was determined, and the deduced amino acid sequence showed it possessed a helicase motif, including a nucleotide-binding consensus sequence (Walker's A-type motif), which was also conserved in other UvrB proteins. The prokaryotic UvrB proteins and eukaryotic DNA repair helicases (Rad3 and XP-D) were classified into different groups by molecular phylogenetic analysis. The T. thermophilus uvrB gene product was overproduced in Escherichia coli and purified to apparent homogeneity. The purified T. thermophilus UvrB protein was stable up to 80°C at neutral pH. T. thermophilus UvrB protein showed ATPase activity at its physiological temperature, whereas the E. coli UvrB protein alone has not been shown to exhibit detectable ATPase activity. The values of K and k for the ATPase activity were 4.2 mM and 0.32 s without DNA, and 4.0 mM and 0.46 s with single-stranded DNA, respectively. This suggests that T. thermophilus UvrB protein could interact with single-stranded DNA in the absence of UvrA protein.
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DOI:
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发表时间:
1990
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
Seeley,TW;Grossman,L
通讯作者:
Grossman,L
DOI:
--
发表时间:
1985
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
Stallings,WC;Pattridge,KA;Strong,RK;Ludwig,ML
通讯作者:
Ludwig,ML
DOI:
--
发表时间:
1990-09
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
David K. Orren;Aziz Sancar
通讯作者:
David K. Orren;Aziz Sancar
DOI:
10.1073/pnas.86.14.5237
发表时间:
1989-07-01
影响因子:
11.1
作者:
ORREN, DK;SANCAR, A
通讯作者:
SANCAR, A
DOI:
10.1073/pnas.89.1.261
发表时间:
1992-01-01
影响因子:
11.1
作者:
FLEJTER, WL;MCDANIEL, LD;SCHULTZ, RA
通讯作者:
SCHULTZ, RA