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  2. Cross-link - Wikipedia

    en.wikipedia.org/wiki/Cross-link

    IUPAC definition for a crosslink in polymer chemistry In chemistry and biology , a cross-link is a bond or a short sequence of bonds that links one polymer chain to another. These links may take the form of covalent bonds or ionic bonds and the polymers can be either synthetic polymers or natural polymers (such as proteins ).

  3. Glycosylation - Wikipedia

    en.wikipedia.org/wiki/Glycosylation

    In biology (but not always in chemistry), glycosylation usually refers to an enzyme-catalysed reaction, whereas glycation (also 'non-enzymatic glycation' and 'non-enzymatic glycosylation') may refer to a non-enzymatic reaction. [1] Glycosylation is a form of co-translational and post-translational modification.

  4. Binding site - Wikipedia

    en.wikipedia.org/wiki/Binding_site

    Glucose binds to hexokinase in the active site at the beginning of glycolysis. In biochemistry and molecular biology, a binding site is a region on a macromolecule such as a protein that binds to another molecule with specificity. [1]

  5. Crosslinking of DNA - Wikipedia

    en.wikipedia.org/wiki/Crosslinking_of_DNA

    In genetics, crosslinking of DNA occurs when various exogenous or endogenous agents react with two nucleotides of DNA, forming a covalent linkage between them. This crosslink can occur within the same strand (intrastrand) or between opposite strands of double-stranded DNA (interstrand).

  6. Ligand (biochemistry) - Wikipedia

    en.wikipedia.org/wiki/Ligand_(biochemistry)

    In contrast to the definition of ligand in metalorganic and inorganic chemistry, in biochemistry it is ambiguous whether the ligand generally binds at a metal site, as is the case in hemoglobin. In general, the interpretation of ligand is contextual with regards to what sort of binding has been observed.

  7. Retrograde signaling - Wikipedia

    en.wikipedia.org/wiki/Retrograde_signaling

    Retrograde signaling in biology is the process where a signal travels backwards from a target source to its original source. For example, the nucleus of a cell is the original source for creating signaling proteins.

  8. N-linked glycosylation - Wikipedia

    en.wikipedia.org/wiki/N-linked_glycosylation

    The different types of lipid-linked oligosaccharide (LLO) precursor produced in different organisms.. N-linked glycosylation is the attachment of an oligosaccharide, a carbohydrate consisting of several sugar molecules, sometimes also referred to as glycan, to a nitrogen atom (the amide nitrogen of an asparagine (Asn) residue of a protein), in a process called N-glycosylation, studied in ...

  9. Molecular binding - Wikipedia

    en.wikipedia.org/wiki/Molecular_binding

    Molecular binding is an attractive interaction between two molecules that results in a stable association in which the molecules are in close proximity to each other. It is formed when atoms or molecules bind together by sharing of electrons.