scholarly journals Rates of complex formation in collisions of rotationally excited homonuclear diatoms with ions at very low temperatures: Application to hydrogen isotopes and hydrogen-containing ions

2005 ◽  
Vol 122 (18) ◽  
pp. 184311 ◽  
Author(s):  
E. I. Dashevskaya ◽  
I. Litvin ◽  
E. E. Nikitin ◽  
J. Troe
Keyword(s):  
Complex Formation ◽  
Low Temperatures ◽  
Hydrogen Isotopes

Complex formation of small rings with chlorine at low temperatures

1974 ◽  
Vol 15 (3) ◽  
pp. 384-387
Author(s):  
V. T. Aleksanyan ◽  
B. Z. Gevorkyan
Keyword(s):  
Complex Formation ◽  
Low Temperatures

Early evaluation of hydrogen isotopes separation by V4Cr4Ti-based sorbents at low temperatures

2016 ◽  
Vol 113 ◽  
pp. 303-307 ◽  
Author(s):  
Timur Kulsartov ◽  
Vladimir Shestakov ◽  
Yevgen Chikhray ◽  
Inesh Kenzhina ◽  
Saulet Askerbekov ◽  
...  
Keyword(s):  
Low Temperatures ◽  
Hydrogen Isotopes ◽  
Early Evaluation ◽  
Isotopes Separation

scholarly journals Temperature-dependence of open-complex formation at two Escherichia coli promoters with extended −10 sequences

1996 ◽  
Vol 317 (1) ◽  
pp. 305-311 ◽  
Author(s):  
Helen D. BURNS ◽  
Tamara A. BELYAEVA ◽  
Stephen J. W. BUSBY ◽  
Stephen D. MINCHIN
Keyword(s):  
Escherichia Coli ◽  
Low Temperature ◽  
Complex Formation ◽  
Temperature Dependence ◽  
Low Temperatures ◽  
Dna Fragments ◽  
Promoter Sequences ◽  
E Coli ◽  
Base Sequences ◽  
Open Complex Formation

We have studied the formation of open complexes between purified RNA polymerase from Escherichia coli and DNA fragments carrying the galP1 promoter, a promoter with an extended -10 region. Unusually, these complexes are formed readily at low temperatures. This low-temperature opening is unaffected by deletions of either upstream or downstream promoter sequences. We conclude that low-temperature open-complex formation is due to specific base sequences in and just upstream of the extended -10 region. In contrast, open complexes are not formed at low temperatures with DNA fragments carrying the E. coli cysG promoter, which also has an extended -10 region. This demonstrates that an extended -10 sequence alone is not sufficient for low-temperature opening. Additionally, we report the temperature dependence of a hybrid galP1–cysG promoter, the related galP2 and galP3 promoters and a derivative of galP1 with an improved -10 hexamer sequence.

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