RNA polymerase--promoter recognition. Specific features of electrostatic potential of "early" T4 phage DNA promoters.
Comparative analysis of electrostatic potential distribution for "early" T4 phage promoters was undertaken, along with calculation of topography of electrostatic potential around the native and ADP-ribosylated C-terminal domain of RNA polymerase alpha-subunit. The data obtained indicate that there is specific difference in the patterns of electrostatic potential distribution in far upstream regions of T4 promoters differing by their response to ADP-ribosylation of RNA polymerase. A specific change in profiles of electrostatic potential distribution for the native and ADP-ribosylated forms of RNA polymerase alpha-subunit was observed suggesting that this factor may be responsible for modulating T4 promoter activities in response to the enzyme modification.
Kamzolova
S G
SG
Institute of Cell Biophysics of RAS, Pushchino Moscow Region, Russia. kamzolova@mail.ru
Sivozhelezov
V S
VS
Sorokin
A A
AA
Dzhelyadin
T R
TR
Ivanova
N N
NN
Polozov
R V
RV
D000246:Adenosine Diphosphate Ribose / Q000737:chemistry / Q000378:metabolism; D017122:Bacteriophage T4 / Q000235:genetics*; D001483:Base Sequence; D004279:DNA, Viral / Q000737:chemistry* / Q000235:genetics* / Q000378:metabolism; D012321:DNA-Directed RNA Polymerases / Q000737:chemistry* / Q000378:metabolism*; D004926:Escherichia coli / Q000201:enzymology / Q000235:genetics; D008958:Models, Molecular; D008969:Molecular Sequence Data; D011401:Promoter Regions, Genetic; D011487:Protein Conformation; D055672:Static Electricity
D004279:DNA, Viral; D000246:Adenosine Diphosphate Ribose; D012321:DNA-Directed RNA Polymerases; C113275:RNA polymerase alpha subunit