Abstract:
:A simple, efficient procedure for cross-linking two complementary oligonucleotides, which does not require chemical modification of either oligonucleotide, is described. One of the oligonucleotides is first converted to the 5'-phosphorothioate derivative with polynucleotide kinase. It is then incubated with its complement in the presence of 1 microM trans-platinum(II)diammine dichloride. After overnight incubation, 40-50% cross-linking is observed. DNA synthesis by the Klenow fragment of Escherichia coli DNA polymerase I is blocked at the cross-linked site, resulting in the formation of truncated products. Potassium platinous chloride (K2PtCl4) and cis-platinum(II)diammine dichloride form cross-links less efficiently than the trans isomer.
journal_name
DNA Cell Bioljournal_title
DNA and cell biologyauthors
Chu BC,Orgel LEdoi
10.1089/dna.1990.9.71subject
Has Abstractpub_date
1990-01-01 00:00:00pages
71-6issue
1eissn
1044-5498issn
1557-7430journal_volume
9pub_type
杂志文章abstract::The application of endogenous regeneration in regenerative medicine is based on the concept of inducing regeneration of damaged or lost tissues from residual tissues in situ. Therefore, endogenous regeneration is also termed in vivo regeneration as opposed to mechanisms of ex vivo regeneration which are applied, for e...
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