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


/con·sti·tu·tive/ (kon-stich´u-tiv) produced constantly or in fixed amounts, regardless of environmental conditions or demand.


(kŏn′stĭ-to͞o′tĭv, -tyo͞o′-)
1. Making a thing what it is; essential.
2. Of or relating to the synthesis of a protein or an enzyme at a constant rate regardless of physiological demand or the concentration of a substrate.

con′sti·tu′tive·ly adv.


produced at a steady rate, independent of internal or external stimuli. Said of enzymes, RNA or protein by an organism.

Patient discussion about constitutive

Q. What really constitutes ADD? Don't all kids have short attention spans because they are curious? What I'm saying is. I'm a very curious fellow, so, therefore, I cannot hold my attention to one thing for more than a minute. Does this mean I have ADD?

A. to what you said about how come they didn't have all these problems lots of years ago, I'll have to say it is true the kids today have a lot more stimulations than what kids had a 100 years ago, though, these problems- ADD and ADHD did exist, even with less things around to lose focus to. even about 20 years ago, when the awareness was too small, teachers just called these kids "stupid" or slow, cause they wern't able to listen for a long period of time and then did'nt know what to answer when asked. the awareness helped save lots of very smart focusless kids...

More discussions about constitutive
References in periodicals archive ?
Whatever the mechanism of TRAP secretion is in vivo, we have demonstrated that TRAP 5b is secreted constitutively from osteoclasts when they are cultured on plastic.
Ortega 1993) small amounts of this enzyme were produced constitutively.
Since their beliefs differ only in their conventional meaning of the word 'arthritis,' Burge concludes that the natures of the individual's thoughts, as marked by their representational contents of their thoughts, constitutively depend on the social environment.
omnivorum constitutively produces small amounts of endoglucanase.
Transgenic mice with a constitutively active AHR: a model for human exposure to dioxin an other AHR ligands
By transfection of cells with dominant negative or constitutively active mutants of cells we will study the effect of the kinases on the activity or phosphorylation of substrates, and on cell growth etc.
Because the cellular architecture is conserved and the ISG15 pathway is constitutively activated in tumour cells of different lineages, our observations in breast cancer must hold true for many other tumours.
1a]AR with enhanced green fluorescent protein (EGFP) or a constitutively active mutant (CAM) [[alpha].
Chalmers's arguments undermine the (appealing) intuition that objects are truly colored the way they appear to us, and the view that colors are both primitive intrinsic properties of objects, and constitutively connected to our experiences.
Experiments with transfected cells that expressed constitutively activated MAPK kinase MEK1 and a specific inhibitor of p38 have shown that inactivation of ERKs and activation of p38 might be associated with the induction of apoptosis by arsenic trioxide (Iwama et al.
This remarkably profound work overlooks, unfortunately, the work of contemporary European moralists who have amended their support of Auer by insisting that the self-understanding of the autonomous Christian must always be constitutively relational.
Characterization of Staphylococcus aureus isolates with decreased susceptibility to vancomycin and teicoplanin: isolation and purification of a constitutively produced protein associated with decreased susceptibility.