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Open AccessJournal ArticleDOI

Studies on Polynucleotides, C A Novel Joining Reaction Catalyzed by the T4-Polynucleotide Ligase

V. Sgaramella, +2 more
- 01 Nov 1970 - 
- Vol. 67, Iss: 3, pp 1468-1475
TLDR
The polynucleotide ligase isolated from T4-infected Escherichia coli is shown to bring about repair of breaks in the single strands of bihelical DNA and can also catalyze the joining of DNA duplexes at their base-paired ends.
Abstract
The polynucleotide ligase isolated from T4-infected Escherichia coli was previously shown to bring about repair of breaks in the single strands of bihelical DNA. The present work shows that the enzyme can also catalyze the joining of DNA duplexes at their base-paired ends. This novel reaction occurs when the deoxynucleoside at a 5′-end carries a phosphate group and the complementary deoxynucleoside opposite to it carries a 3′-hydroxyl group. The consequence is the lengthening of the original duplex to form dimers or oligomers depending upon whether one or both ends are base-paired.

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Citations
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Book ChapterDOI

Enzymatic End-to-end Joining of DNA Molecules

TL;DR: In this article, a way to join naturally occurring DNA molecules, independent of their base sequence, is proposed, based upon the presumed ability of the calf thymus enzyme terminal deoxynucleotidyltransferase to add homopolymer blocks to the ends of double-stranded DNA.
Book ChapterDOI

Synthetic oligodeoxynucleotides for analyses of DNA structure and function.

TL;DR: The chapter presents a general picture of how synthetic oligonucleotides have been used to solve various problems in molecular biology and concludes that, optimal conditions may be found so that large quantities of this RNA transcript would then be used to direct the synthesis in the micro-organism of this protein product in bulk quantities.
Journal ArticleDOI

The phage T4 DNA ligase mediates bacterial chromosome DSBs repair as single component non-homologous end joining.

TL;DR: It is demonstrated that Enterobacteria phage T4 DNA ligase alone is capable of mediating in vivo chromosome DSBs repair in Escherichia coli and found single nucleotide substitutions at the DNA junction, suggesting that T4DNA ligase, as a single component non-homologous end joining system, has great potential in genome mutagenesis, genome reduction and genome editing.
Journal ArticleDOI

Molecular cloning of DNA. An introduction into techniques and problems.

TL;DR: It is anticipated that bacterial host cells are not only suitable for amplifying DNA but also for the expression of useful functions which originate from other, preferably higher organisms.
Journal ArticleDOI

Caffeine, caffeine derivatives and chromosomal aberrations I. The relationship between ATP-concentration and the frequency of 8-ethoxycaffeine-induced chromosomal exchanges in Vicia faba

TL;DR: The relationship between the frequency of EOC-induced exchanges and the ATP level in root tips of Vicia faba was studied and an adenine-induced 70 % increase of the concentration of ATP resulted in a frequency of exchanges which was three times higher than the frequency obtained at a normal level of ATP.
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