Ligase
Enzyme that catalysis the joining of two DNA fragments with compatible ends. Ligase is required for DNA replication and recombination. Ligase used for in vitro ligation is usually purified from bacteria.
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Definition of ligase :
An enzyme that can rejoin a broken phosphodiester bond in a nucleic acid.
LCR uses both a DNA polymerase enzyme and a DNA ligase enzyme to drive the reaction. Like PCR, LCR requires a thermal cycler to drive the rxn and each cycle results in a doubling of the target nucleic acid molecule.
Ligase (DNA ligase)
An enzyme that repairs single-stranded discontinuities in double-stranded DNA molecules in the cell. Ligase joins a 3'-OH residue of a deoxyribonucleotide to the 5'-phosphate residue of an adjacent deoxyribonucleotide.
Ligase chain reaction using colorimetric detection
Layne Huiet, Annette Tumolo, Luis Ugozzoli, Tony Reyes, Jimmie Lowry, Bruce Wallace and Frank Witney ...
Ligase (DNA ligase). An enzyme that catalyzes a condensation reaction that links two DNA molecules via the formation of a phosphodiester bond between the 3' hydroxyl and 5' phosphate of adjacent nucleotides.
DNA ligase is used to seal the fragments.
Bacteria are capable of taking up DNA from their environment. This process is called transformation. CaCl2 and a procedure called heat shock are used to make E.
DNA ligase In recombinant DNA technology, an enzyme that seals together two DNA fragments from different sources to form a recombinant DNA molecule.
DNA ligase
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A linking enzyme essential for DNA replication; catalyzes the covalent bonding of the 3' end of a new DNA fragment to the 5' end of a growing chain.
DNA ligase - protein that joins (ligates) DNA strands; used by cells for DNA repair, by molecular biologists for gene cloning.
DNA ligase An enzyme that catalyzes the formation of a phosphodiester bond between the 3'-OH group at the end of one DNA chain and the 5'-phosphate group at the end of the other chain; it takes part in the synthesis, repair, and splicing of DNA.
Sealed with DNA ligase, these molecules are functioning plasmids that are capable of conferring resistance to both ampicillin and kanamycin. They are molecules of recombinant DNA.
LIGASE - See DNA LIGASE.
LIGATION - See DNA LIGASE.
LINEAR EPITOPE - An epitope formed by a series of amino acids which are adjacent to each other within the primary structure of the protein.
Ligase: An enzyme, T4 DNA ligase, which can link pieces of DNA together. The pieces must have compatible ends (both of them blunt, or else mutually compatible sticky ends), and the ligation reaction requires ATP.
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DNA ligase - enzyme that cuts DNA, creating sticky ends.
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DNA polymerase - copies DNA sequences in the polymerase chain reaction.
DNA ligase - fills in nicks and gaps made in polynucleotide strands
DNA renaturation (hybridization) - process whereby two complementary nucleic acid strands form a double helix during an annealing period; ...
CF1 ATP ligase of chloroplasts correspond to the human FoF1 ATP synthase in plants.
Bacteriorhodopsin is a photosynthetic pigment used by archaea, most notably halobacteria.
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DNA ligase. See Ligase. DNA polymerase. See Polymerase. DNA polymorphism. One of two or more alternate forms (alleles) of a chromosomal locus that differ in nucleotide sequence or have variable numbers of repeated nucleotide units.
The reaction is catalysed by the enzyme DNA ligase.
LysogenBacterial cell or strain which carries a copy of a bacteriophage genome in its chromosome. Genes within the prophage will be expressed providing their promoters are active.
Mix plasmid and DNA gene together and use DNA ligase to stick them together
Mix with bacteria //only ≈1% will take up the engineered plasmids
Identify by using antibiotic resistance.
The chemical bonds that the enzymes cleave can be reformed by other enzymes known as ligases, so that restriction fragments carved from different chromosomes or genes can be spliced together, provided their ends are complementary (more below).
For example, it can be placed into a bacteria, where it is sealed into the DNA chain using ligase. When the chromosome is once again sealed, the bacteria is now effectively re-programmed to replicate this new antiviral protein.
recombinant DNA molecules New combinations of DNA fragments formed by cutting DNA segments from two sources with restriction enzyme and then joining the fragments together with DNA ligase.
 See also: Enzyme, DNA, Protein, Sequence, Molecule
  
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