title: Electrostatic map of T7 DNA: comparative analysis of functional and electrostatic properties of T7 RNA polymerase-specific promoters.
abstract: The entire T7 bacteriophage genome contains 39937 base pairs (Database NCBI RefSeq N1001604). Here, electrostatic potential distribution around double helical T7 DNA was calculated by Coulomb method using the computer program of Sorokin A.A. (lptolik@gmail.com). Electrostatic profiles of 17 promoters recognized by T7 phage-specific RNA polymerase were analyzed. It was shown that electrostatic profiles of all T7 RNA polymerase-specific promoters can be characterized by distinctive motifs which are specific for each promoter class. Comparative analysis of electrostatic profiles of native T7 promoters of different classes demonstrates that T7 RNA polymerase can differentiate them due to their electrostatic features.
authors.affiliation: a Institute of Cell Biophysics, RAS , 142290 , Pushchino, Moscow region, Russia .
authors.forename: S G
authors.initials: SG
authors.lastname: Kamzolova
authors.forename: P M
authors.initials: PM
authors.lastname: Beskaravainy
authors.forename: A A
authors.initials: AA
authors.lastname: Osypov
authors.forename: T R
authors.initials: TR
authors.lastname: Dzhelyadin
authors.forename: E A
authors.initials: EA
authors.lastname: Temlyakova
authors.forename: A A
authors.initials: AA
authors.lastname: Sorokin
mesh_terms: D017123:Bacteriophage T7 / Q000201:enzymology* / Q000235:genetics; D004279:DNA, Viral / Q000737:chemistry*; D012321:DNA-Directed RNA Polymerases / Q000235:genetics*; D016679:Genome, Viral; D011401:Promoter Regions, Genetic; D055672:Static Electricity; D014764:Viral Proteins / Q000235:genetics*
chemical_list: D004279:DNA, Viral; D014764:Viral Proteins; C062210:bacteriophage T7 RNA polymerase; D012321:DNA-Directed RNA Polymerases
keywords: DNA electrostatics; phage T7; promoter