active site

(redirected from active sites)
Also found in: Thesaurus, Medical, Encyclopedia.
Related to active sites: Lock and Key Model, induced fit model

active site

The part of an enzyme at which catalysis of the substrate occurs.

ac·tive site

The part of an enzyme where the substance that the enzyme acts upon (called the substrate) is catalyzed. See more at enzyme.
ThesaurusAntonymsRelated WordsSynonymsLegend: site - the part of an enzyme or antibody where the chemical reaction occurs
site, situation - physical position in relation to the surroundings; "the sites are determined by highly specific sequences of nucleotides"
enzyme - any of several complex proteins that are produced by cells and act as catalysts in specific biochemical reactions
antibody - any of a large variety of proteins normally present in the body or produced in response to an antigen which it neutralizes, thus producing an immune response
References in periodicals archive ?
First, the conserved amino acid sequences from [alpha]-amylase active sites of 10 closely related species were used to build phylogenetic trees using Molecular Evolutionary Genetics Analysis Version 6.
At the company's annual general meeting, chairman Dermot Gleeson said: "The division [Gleeson Homes] currently has 44 active sites, compared with 39 at this time last year.
For the implementation of the program active sites for regional aid ResidenzstraE-e a shopping street management is from the 10/01/2015 required to revalue the ResidenzstraE-e as Commercial Street, to stabilize the development of the trade with local stakeholders and to force a positive development.
From Wednesday, Active Northumberland will be part of the authority's 'family of companies',' incorporating the former North County Leisure Services, Tees Active sites and Blyth Valley Arts and Leisure Services under one banner.
We have active sites across Warwickshire and while our construction teams watch out for youngsters during the day and we secure our sites at night, but we also ask parents to make sure they know where their children are during the holiday time.
The existence of that oxyanion hole is based on the premise that convergent evolution has made the active sites of these unrelated enzymes functionally identical.
The Kent-based builder, which trades from 85 active sites, added that sales prices have been modestly ahead of its hopes.
Chirality in biological nanospaces; reactions in active sites.
However, the molecular weight distributions (MWDs) of the resulting polymers are not controlled well because of the presence of multiple active sites and the heterogeneity of the catalyst system [1-10].
The firm had 362 active sites at the start of November - down 19% on a year ago.
ClinPhone Site Manager is a web-based clinical trial solution that enables Clinical Operations personnel to effectively manage all processes related to the selection and activation of clinical trial sites, as well as facilitate ongoing communication with active sites.
Students learn about certain properties of enzymes such as: active sites, interactions with substrates, specificity for substrates, and the upper limits of temperature imposed upon their catalytic activities.

Full browser ?