active site

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Related to active sites: Lock and Key Model, induced fit model

active site:

see enzymeenzyme,
biological catalyst. The term enzyme comes from zymosis, the Greek word for fermentation, a process accomplished by yeast cells and long known to the brewing industry, which occupied the attention of many 19th-century chemists.
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active site

[′ak·tiv ′sīt]
The effective site at which a given heterogeneous catalytic reaction can take place. Also known as active center.
(cell and molecular biology)
The region of an enzyme molecule at which binding with the substrate occurs. Also known as binding site; catalytic site.
References in periodicals archive ?
e) After the first rupture, the particle grows owing to polymer accumulation at the active sites exposed from the beginning of the process (before any rupture) and at the active sites exposed as a result of the previous fragmentation step.
This restriction hinders the pass of monomer towards less accessible active sites located on the surface of thinner and inner pores.
The molecules bind to a small number of very specific sites, including the active site.
We think the present technology is adequate to start evolving proteins with new functional groups at active sites," Erickson concludes.
In addition, the world's largest web hosting company by number of active sites, 1&1 Internet, will change to a .
The report was based on percentage growth in active sites among large hosting providers between April and October of 2003.
Instill currently tracks data for all Sodexho USA locations and the Procurement Solution is being used in 3765 units, with 550 more active sites scheduled by the beginning of next year.
The December 2002 Netcraft Web Server Survey found that 62% of the domains and 67% of active sites are using Apache, thus making it more widely used than all other web servers combined.
INFO also boasts the highest percentage of active sites - close to 70% - as well as the largest number of live, dedicated Web sites that encompass 27% of its registrations and approaches .
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.

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