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  2. Nucleoside - Wikipedia

    en.wikipedia.org/wiki/Nucleoside

    Nucleosides are glycosylamines that can be thought of as nucleotides without a phosphate group. A nucleoside consists simply of a nucleobase (also termed a nitrogenous base) and a five-carbon sugar ( ribose or 2'-deoxyribose) whereas a nucleotide is composed of a nucleobase, a five-carbon sugar, and one or more phosphate groups.

  3. Nucleic acid - Wikipedia

    en.wikipedia.org/wiki/Nucleic_acid

    Non-standard nucleosides are also found in both RNA and DNA and usually arise from modification of the standard nucleosides within the DNA molecule or the primary (initial) RNA transcript. Transfer RNA (tRNA) molecules contain a particularly large number of modified nucleosides.

  4. Nucleotide base - Wikipedia

    en.wikipedia.org/wiki/Nucleotide_base

    DNA and RNA also contain other (non-primary) bases that have been modified after the nucleic acid chain has been formed. In DNA, the most common modified base is 5-methylcytosine (m 5 C). In RNA, there are many modified bases, including those contained in the nucleosides pseudouridine (Ψ), dihydrouridine (D), inosine (I), and 7-methylguanosine ...

  5. Nucleoside-modified messenger RNA - Wikipedia

    en.wikipedia.org/wiki/Nucleoside-modified...

    A nucleoside-modified messenger RNA (modRNA) is a synthetic messenger RNA (mRNA) in which some nucleosides are replaced by other naturally modified nucleosides or by synthetic nucleoside analogues. [ 1 ] modRNA is used to induce the production of a desired protein in certain cells.

  6. Nucleotide - Wikipedia

    en.wikipedia.org/wiki/Nucleotide

    This nucleotide contains the five-carbon sugar deoxyribose (at center), a nucleobase called adenine (upper right), and one phosphate group (left). The deoxyribose sugar joined only to the nitrogenous base forms a Deoxyribonucleoside called deoxyadenosine, whereas the whole structure along with the phosphate group is a nucleotide, a constituent of DNA with the name deoxyadenosine monophosphate.

  7. RNA - Wikipedia

    en.wikipedia.org/wiki/RNA

    In the cytoplasm, ribosomal RNA and protein combine to form a nucleoprotein called a ribosome. The ribosome binds mRNA and carries out protein synthesis. Several ribosomes may be attached to a single mRNA at any time. [27] Nearly all the RNA found in a typical eukaryotic cell is rRNA. Transfer-messenger RNA (tmRNA) is found in many bacteria and ...

  8. Category:Nucleosides - Wikipedia

    en.wikipedia.org/wiki/Category:Nucleosides

    Nucleosides are glycosylamines made by attaching a nucleobase to a ribose ring. Examples of these include cytidine , uridine , adenosine , guanosine , thymidine and inosine . Subcategories

  9. Nucleoside triphosphate - Wikipedia

    en.wikipedia.org/wiki/Nucleoside_triphosphate

    G proteins are coupled with a cell membrane bound receptor. [4] This whole complex is called a G protein-coupled receptor (GPCR). G proteins can bind either GDP or GTP. When bound to GDP, G proteins are inactive. When a ligand binds a GPCR, an allosteric change in the G protein is triggered, causing GDP to leave and be replaced by GTP. [39]

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