1. See c. enzyme. 2. In genetics, descriptive of a gene that is controlled by constantly active promoter.

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con·sti·tu·tive 'kän(t)-stə-.t(y)üt-iv, kən-'stich-ət-iv adj
1 a) of, relating to, or being an enzyme or protein produced in relatively constant amounts in all cells of an organism without regard to cell environmental conditions (as the concentration of a substrate) compare INDUCIBLE (a)
b) controlling production of or coding genetic information for a constitutive enzyme or protein <\constitutive genes> <\constitutive mutations>
2) being chromatin of a chromosomal region that is condensed into heterochromatin in all cells of an organism rather than just some
con·sti·tu·tive·ly adv

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con·sti·tu·tive (kon-stĭ-tooґtiv) (kon-stichґu-tiv) produced constantly or in fixed amounts, regardless of environmental conditions or demand; cf. inducible.

Medical dictionary. 2011.

Look at other dictionaries:

  • Constitutive — Con sti*tu tive, a. 1. Tending or assisting to constitute or compose; elemental; essential. [1913 Webster] An ingredient and constitutive part of every virtue. Barrow. [1913 Webster] 2. Having power to enact, establish, or create; instituting;… …   The Collaborative International Dictionary of English

  • constitutive — constitutive. См. конститутивный. (Источник: «Англо русский толковый словарь генетических терминов». Арефьев В.А., Лисовенко Л.А., Москва: Изд во ВНИРО, 1995 г.) …   Молекулярная биология и генетика. Толковый словарь.

  • constitutive — index causal, causative, primary Burton s Legal Thesaurus. William C. Burton. 2006 …   Law dictionary

  • constitutive — c.1600, having the power of establishing, also elemental, essential, from M.L. *constitutivus, from constitut , pp. stem of constituere (see CONSTITUTE (Cf. constitute)). Related: Constitutively …   Etymology dictionary

  • constitutive — [kän′stə to͞ot΄iv, kän′stətyo͞ot΄iv; kən stich′o͞o tiv΄] adj. [LL constitutivus: see CONSTITUTE] 1. having power to establish, appoint, or enact 2. making a thing what it is; basic 3. forming a part (of); constituent; component constitutively adv …   English World dictionary

  • Constitutive — The term constitutive might refer to: In physics, a constitutive equation is a relation between two physical quantities. In cell biology, a constitutively active protein is a protein whose activity is constant and active. In ecology, a… …   Wikipedia

  • constitutive — ● constitutif, constitutive adjectif Qui entre nécessairement dans la constitution, la composition de quelque chose ; constituant : L oxygène et l hydrogène sont les éléments constitutifs de l eau. Qui appartient à la nature même de quelque chose …   Encyclopédie Universelle

  • constitutive — adjective Date: 1592 1. having the power to enact or establish ; constructive 2. constituent, essential 3. relating to or dependent on constitution < a constitutive property of all electrolytes > • constitutively …   New Collegiate Dictionary

  • constitutive — adj. Constitutive is used with these nouns: ↑element …   Collocations dictionary

  • constitutive — Constantly present, whether there is demand or not. Thus some enzymes are constitutively produced, whereas others are inducible …   Dictionary of molecular biology

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