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activator

A Dictionary of Biology | 2004 | Copyright

activator
1. A type of transcription factor that enhances the transcription of a gene by binding to a region of DNA called an enhancer. Compare repressor.

2. A substance that – by binding to an allosteric site on an enzyme – enables the active site of the enzyme to bind to the substrate.

3. Any compound that potentiates the activity of a drug or other foreign substance in the body.

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"activator." A Dictionary of Biology. 2004. Encyclopedia.com. (June 1, 2012). http://www.encyclopedia.com/doc/1O6-activator.html

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activator

A Dictionary of Ecology | 2004 | | Copyright

activator A metal ion that functions in conjunction with either an enzyme or its substrate in order to bring about a reaction.

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MICHAEL ALLABY. "activator." A Dictionary of Ecology. 2004. Encyclopedia.com. 1 Jun. 2012 <http://www.encyclopedia.com>.

MICHAEL ALLABY. "activator." A Dictionary of Ecology. 2004. Encyclopedia.com. (June 1, 2012). http://www.encyclopedia.com/doc/1O14-activator.html

MICHAEL ALLABY. "activator." A Dictionary of Ecology. 2004. Retrieved June 01, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O14-activator.html

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activator

A Dictionary of Plant Sciences | 1998 | | Copyright

activator A metal ion that functions in conjunction with either an enzyme or its substrate in order to bring about a reaction.

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MICHAEL ALLABY. "activator." A Dictionary of Plant Sciences. 1998. Encyclopedia.com. 1 Jun. 2012 <http://www.encyclopedia.com>.

MICHAEL ALLABY. "activator." A Dictionary of Plant Sciences. 1998. Encyclopedia.com. (June 1, 2012). http://www.encyclopedia.com/doc/1O7-activator.html

MICHAEL ALLABY. "activator." A Dictionary of Plant Sciences. 1998. Retrieved June 01, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O7-activator.html

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activator

A Dictionary of Zoology | 1999 | | Copyright

activator A metal ion that functions in conjunction with either an enzyme or its substrate in order to bring about a reaction.

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MICHAEL ALLABY. "activator." A Dictionary of Zoology. 1999. Encyclopedia.com. 1 Jun. 2012 <http://www.encyclopedia.com>.

MICHAEL ALLABY. "activator." A Dictionary of Zoology. 1999. Encyclopedia.com. (June 1, 2012). http://www.encyclopedia.com/doc/1O8-activator.html

MICHAEL ALLABY. "activator." A Dictionary of Zoology. 1999. Retrieved June 01, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O8-activator.html

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activator

A Dictionary of Nursing | 2008 | Copyright

activator (ak-ti-vay-ter) n. a substance that stimulates a chemical change or reaction.

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"activator." A Dictionary of Nursing. 2008. Encyclopedia.com. 1 Jun. 2012 <http://www.encyclopedia.com>.

"activator." A Dictionary of Nursing. 2008. Encyclopedia.com. (June 1, 2012). http://www.encyclopedia.com/doc/1O62-activator.html

"activator." A Dictionary of Nursing. 2008. Retrieved June 01, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O62-activator.html

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