[DNA-like duplexes containing repetitive sequences. VII. Chemico-enzymatic synthesis of polymers with fragments of natural promotors]. / DNK-podobnye dupleksy, soderzhashchie povtory. VII. Khimiko-fermentativnyi sintez polimerov s fragmentami prirodnykh promotorov.
Mol Biol (Mosk)
; 18(1): 146-60, 1984.
Article
em Ru
| MEDLINE
| ID: mdl-6708955
ABSTRACT
Two types of DNA-duplexes containing the repeating fragments of natural promoters have been obtained starting from synthetic oligodeoxyribonucleotides TGCATTATAA, AACTAGTT, AGTTAACT. Deca- and octanucleotides have been synthesized by solid phase method with stepwise or blockwise chain elongation. UV- and CD-spectroscopy has been used to study the physico-chemical properties of the synthetic oligonucleotides. Polycondensation of oligonucleotides induced by water-soluble carbodiimide (chemical ligation) or T4-polynucleotide ligase allowed to synthesize the promoter models. The degree of polymerization varied from 2 to 8 in case of chemical ligation and from 2 to 30 in case of enzymatic ligation. A new chain length regulation technique has been developed by means of addition of a terminator of polycondensation (unphosphorylated oligonucleotide) in the reaction mixture.
Buscar no Google
Base de dados:
MEDLINE
Assunto principal:
Oligodesoxirribonucleotídeos
/
Oligonucleotídeos
/
Óperon
/
DNA
/
Sequências Repetitivas de Ácido Nucleico
Idioma:
Ru
Ano de publicação:
1984
Tipo de documento:
Article