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  2. Structural analog - Wikipedia

    en.wikipedia.org/wiki/Structural_analog

    A structural analog, also known as a chemical analog or simply an analog, is a compound having a structure similar to that of another compound, but differing from it in respect to a certain component. [1] [2] [3] It can differ in one or more atoms, functional groups, or substructures, which are replaced with other atoms, groups, or ...

  3. Functional analog (chemistry) - Wikipedia

    en.wikipedia.org/wiki/Functional_analog_(chemistry)

    Functional analogs are not necessarily structural analogs with a similar chemical structure. [1] An example of pharmacological functional analogs are morphine, heroin and fentanyl, which have the same mechanism of action, but fentanyl is structurally quite different from the other two with significant variance in dosage. [2]

  4. Derivative (chemistry) - Wikipedia

    en.wikipedia.org/wiki/Derivative_(chemistry)

    In chemistry, a derivative is a compound that is derived from a similar compound by a chemical reaction.. In the past, derivative also meant a compound that can be imagined to arise from another compound, if one atom or group of atoms is replaced with another atom or group of atoms, [1] but modern chemical language now uses the term structural analog for this meaning, thus eliminating ambiguity.

  5. Nucleic acid analogue - Wikipedia

    en.wikipedia.org/wiki/Nucleic_acid_analogue

    Nucleic acid analogues are compounds which are analogous (structurally similar) to naturally occurring RNA and DNA, used in medicine and in molecular biology research. Nucleic acids are chains of nucleotides, which are composed of three parts: a phosphate backbone, a pentose sugar, either ribose or deoxyribose , and one of four nucleobases .

  6. List of cocaine analogues - Wikipedia

    en.wikipedia.org/wiki/List_of_cocaine_analogues

    This is a list of cocaine analogues.A cocaine analogue is an (usually) artificial construct of a novel chemical compound from (often the starting point of natural) cocaine's molecular structure, with the result product sufficiently similar to cocaine to display similarity in, but alteration to, its chemical function.

  7. Analogical models - Wikipedia

    en.wikipedia.org/wiki/Analogical_models

    Functional analogs (or functional analogues) are entities (models, representations, etc.) that can be replaced, to fulfill the same function. When the entities in question are formally represented by black boxes , the concept of analog is related to "same behavior": they take the same output sequence when submitted to the same input sequence.

  8. Transition state analog - Wikipedia

    en.wikipedia.org/wiki/Transition_state_analog

    Transition state analogs (transition state analogues), are chemical compounds with a chemical structure that resembles the transition state of a substrate molecule in an enzyme-catalyzed chemical reaction. Enzymes interact with a substrate by means of strain or distortions, moving the substrate towards the transition state. [1]

  9. Substrate analog - Wikipedia

    en.wikipedia.org/wiki/Substrate_analog

    The effect of the substrate analog can be nullified by increasing the concentration of the originally intended substrate. [6] There are also substrate analogs that bind to the binding site of an enzyme irreversibly. If this is the case, the substrate analog is called an inhibitory substrate analog, a suicide substrate, or a Trojan horse ...