Ribonucleotides See nucleotide. Related Terms: Nucleotide A subunit of DNA or RNA consisting of a nitrogenous base (purine in adenine and guanine, pyrimidine in thymine, or cytosine for DNA and uracil cytosine for RNA), a phosphate molecule, ...
Ribonucleotides: See nucleotide.
Ribosomal RNA (rRNA): A class of RNA found in the ribosomes of cells.
3.1.1 Purine ribonucleotides 3.1.2 Pyrimidine ribonucleotides 3.2 Protection Chemistry 4 References 5 See also 6 External links ...
Deoxyribose-containing nucleotides, the deoxyribonucleotides, are the monomers of DNA. Ribose-containing nucleotides, the ribonucleotides, are the monomers of RNA.
Polymerase -- any enzyme that catalyzes the formation of DNA or RNA from deoxyribonucleotides or ribonucleotides.
Polymerase, DNA or RNA Enzymes that catalyse the synthesis of nucleic acids on preexisting nucleic acid templates, assembling RNA from ribonucleotides or DNA from deoxyribonucleotides.
Short preexisting single-stranded polynucleotide chain to which new deoxyribonucleotides can be added by DNA polymerase. It anneals to a nucleic acid template and promotes copying of the template starting from the primer site. Related Terms: ...
An enzyme complex that polymerizes RNA from ribonucleotides (NTPs), using one strand of DNA as template (hence called "DNA-dependent RNA polymerase). The core RNAP from E. coli is composed of five subunits: 2 alpha subunits, beta, beta', and omega.
deoxyribonucleic acid A polymer of deoxyribonucleotides that is in the form of a double helix; DNA is the genetic molecule of life in that it codes for the sequence of amino acids in proteins; ...
Depending on the sugar the nucleotides are called deoxyribonucleotides or ribonucleotides. Thousands of nucleotides are linked to form a DNA or RNA molecule. See also base pair. Related Terms: Deoxyribonucleic acid (DNA) ...
poly-A tail - polyadenosine tail - a sequence of repeatingadenosine ribonucleotides added to the 3' end of a newly transcribed pre- mRNA before it exits the nucleus.
(pul-im-ur-ase) An enzyme that links together the growing chain of ribonucleotides during transcription. RNA processing Modification of RNA before it leaves the nucleus, a process unique to eukaryotes.
A single residue in DNA polymerases of the Escherichia coli DNA polymerase I family is critical for distinguishing between deoxy and dideoxyribonucleotides. Proc. Natl. Acad. Sci. U.S.A. 92, 6339-6343. Bedford, E., Tabor, S. and Richardson, C. C.
Ribonucleotide reductase An enzyme that catalyzes the reduction of all four ribonucleotides to deoxyribonucleotides.
DEOXYRIBONUCLEOTIDE - nucleotides which are the building blocks of DNA and which lack the 2' hydroxyl moiety present in the ribonucleotides of RNA.
See also: DNA, Molecule, Base, Nucleotide, Deoxyribonucleotide
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