Gourt > Science > Biology > Biochemistry and Molecular Biology > Biomolecules > Proteins and Enzymes (21)
An enzyme is a biological molecule that catalyzes a chemical reaction. Most enzymes are proteins and the word "enzyme" is often used to mean a protein enzyme, but some RNA molecules also have catalytic activity, and to differentiate them from protein enzymes, they are referred to as RNA enzymes or ribozymes.
Enzymes are essential for life because most chemical reactions in living cells would occur too slowly, or would lead to different products without enzymes.
Like all catalysts, enzymes work by providing an alternate pathway of lower energy for a reaction. This speeds up the reaction, sometimes making it many millions of times faster. Chemically, enzymes are like any catalyst and are not consumed in chemical reactions nor do they alter the equilibrium of a reaction. However, enzymes do differ from most other catalysts in showing much higher levels of specificity.
More on [ Enzyme ]
Cell Membrane and Adhesion :: Cell Biology
Cytoskeleton :: Cell Biology
DNA mismatch repair enzymes are like the Westlife of genetic proteins, they go over old stuff and all look the same. MutH is the best though
jamesdickson (Jamie Dickson) Fri, 27 Nov 2009 17:43:48 -0000
DNA mismatch repair enzymes are like the Westlife of genetic proteins, they go over old stuff and all look the same. MutH is the best though
Interesting The compounds that are needed are a combination of proteins and enzymes called Cynergy T.. http://bit.ly/5WDVH8
down2earthnews (dawn hay) Fri, 27 Nov 2009 08:24:51 -0000
Interesting The compounds that are needed are a combination of proteins and enzymes called Cynergy T.. http://bit.ly/5WDVH8
EMT: Developmental expression of drug metabolizing enzymes and transporter proteins in human placenta and fetal tis... http://bit.ly/86LJAH
ExpertOpinion (Expert Opinion) Tue, 24 Nov 2009 09:15:30 -0000
EMT: Developmental expression of drug metabolizing enzymes and transporter proteins in human placenta and fetal tis... http://bit.ly/86LJAH
Barley grass has highly concentrated vitamins, minerals, enzymes, proteins and has ELEVEN times more calcium than cow's milk!
MIKEatHHinc (Michael Novakovich) Fri, 20 Nov 2009 18:08:45 -0000
Barley grass has highly concentrated vitamins, minerals, enzymes, proteins and has ELEVEN times more calcium than cow's milk!
Cosmos 2: DNA replication - how do enzymes and proteins "know" how to perform error checking? Can natural selection explain its appearance?
dcomdico (David Comdico) Fri, 20 Nov 2009 14:30:58 -0000
Cosmos 2: DNA replication - how do enzymes and proteins "know" how to perform error checking? Can natural selection explain its appearance?
About Proteins - References, patents links, discussion of transkaryotic proteins, cytochrome P450, and speculation on treatment genetic disorders to promote book sales by oxydex.com.
ATP Synthase - Includes the enzyme's history, general information, news, research, links, and FAQ.
Meta Description: [ ATP Synthase - a splendid molecular machine. Resources, links, news, references on FoF1 ATP synthase. List of ATP synthase research group leaders. ]
ATPases Associated with Cellular Activities (AAA) - Information and databases on the ubiquitous AAA protein superfamily, essential for cell cycle, vesicular transport, mitochondrial functions, peroxisome assembly, and proteolysis at IMBM, Karl Franzens University, Graz, Austria.
Attractin - Resource, including its relationship to immunity, pigmentation, neurochemistry, obesity, mutations resulting in the genotypes of mahogany, zitter, myelin vacuolation and black tremor in rodents. Maintained at DFCI, Boston, MA.
Fiberlab - Laboratory to investigate fiber-forming spiders, mussel collagen, nanoproteinfibers, and prions at Munich, Germany.
Graether, Steffen, PhD. - CV, publication list and introduction to research studying the structure and function of antifreeze proteins. Professor in Molecular and Cellular Biology at the University of Guelph, Ontario.
Meta Description: [ Steffen Graether's Homepage. Learn about
our research and our group. ]
Mitra, Sangha - Biochemist investigating catalytic mechanisms for potential drug targets. Personal homepage and research interests at Utah State University.
Meta Description: [ Sangha Mitra Sanghamitra research interests personal interests ]
PARP Link - Resource for the poly(ADP-ribose)polymerases family, and their role in maintaining the integrity of the eukaryotic genome. Includes protocols, links to NCGI article, profile of the center, researchers, and contacts at Illkirch, France.
Svetlana Lutsenko Laboratory - Research on ATP7B (WNDP), a copper-transporting ATPase, its structure and function, at Portland, Oregon.
Meta Description: [ The Svetlana Lutsenko laboratory is located at OHSU in
Portland, OR. In order to understand how copper deficiency or copper overload can
lead to these various pathologies, we study the structure, function, and regulation
of molecules that are involved in binding and transport of copper within ... ]
The Chaperonin Home Page - A repository for information about the chaperonin class of heat shock proteins (GroEL and GroEL).
The Cyclotide Webpage - Classification, properties, potential applications and research on polypeptides characterized by their cyclised backbone, with an embedded cystine knot, maintained by the University of Queensland, Brisbane, Australia.
Meta Description: [ index ]
Viral Polymerases - Overview with illustrations of their structure, functional role, regulation and control, St. Edward's University, Austin, TX.
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