Active site
... site allow the recognition and binding of the
substrate .
The active site in many enzymes can be ... blocked when a molecule chemically similar to the
substrate binds to the active site but cannot be processed ... whereby the active site binds and encloses the
substrate molecule. Often enzymes bond to ...
Allostery
... or relaxed (R), and that relaxed subunits bind
substrate more readily than those in the tense state. The ... the T state over the R state
The binding of
substrate to one subunit causes all other subunits to ... the sequential model dictates that molecules of
substrate bind via an induced fit protocol. Namely, when a ...
Allostery
... or relaxed (R), and that relaxed subunits bind
substrate more readily than those in the tense state. The ... the T state over the R state
The binding of
substrate to one subunit causes all other subunits to ... the sequential model dictates that molecules of
substrate bind via an induced fit protocol. Namely, when a ...
Competitive inhibitor
... on the same active site as the normal enzyme
substrate . The
substrate molecules cannot enter the active site while the ... and inhibitors cannot enter the site when the
substrate is there. Characteristic for this mode of ...
Enzyme
... of one or more binding sites where the
substrate (s) attach, and active site (s), where the amino ... structural properties of the enzyme and
substrate are responsible for this specificity (Fig. 2).
... the maximum speed of an enzymatic reaction, the
substrate concentration is increased until a constant rate ...
Fungus
... typically form a microscopic network within the
substrate (food source) called the mycelium , through ... They develop into new mycelia, which invade some
substrate and repeat the life cycle. These may become very ... by secreting exoenzymes into the surrounding
substrate . Exoenzymes act like the digestive enzymes of ...
Michaelis-Menten kinetics
... kinetics are valid only when the concentration of
substrate is higher than the concentration of enzyme, and ... maximum rate of an enzyme mediated reaction, the
substrate concentration ( [S] ) is increased until a ... that are catalyzed by an enzyme. With increasing
substrate concentration [S], the enzyme is asymptotically ...
Substrate
...
The word
substrate can mean the following:
In biochemistry , a
substrate is a molecule which is acted upon by an enzyme .
In industrial printing ,
substrate is used to describe the base material that ...
Lineweaver-Burke diagram
... constant , v max is the maximum reaction velocity, and [ S ] is the
substrate concentration .
The Lineweaver-Burke plot is useful for rapidly ... the contribution of the least important data points (those when
substrate concentration is minimal). Thus, the Lineweaver-Burke plot is considered ...
Lipase
... lipases act at a specific position on the glycerol backbone of a lipid
substrate (A1, A2 or A3). In the example of human pancreatic lipase (HPL), which is ... A. Roussel, C. Cambillau, and R. Verger. 1998. Structural basis for the
substrate selectivity of pancreatic lipases and some related proteins. Biochim ...
Alcohol
... methanol ingestion is to administer ethanol. This will bind to alcohol dehydrogenase, preventing methanol from binding and thus its acting as a
substrate .
Chemistry of alcohols
Preparation
Laboratory
There are three common methods:
From alkyl halides : react with ...
Cellulose
... and rayon , and more recently Modal , a textile derived from beechwood cellulose.
Cellulose is also used within the laboratory as a solid-state
substrate for thin layer chromotography .
Chemistry
Cellulose monomers (beta-glucose) are linked together through 1,4 glycosidic bonds . Cellulose ...
Cooperativity
... Cooperativity is a phenomenon in biology displayed by enzymes or receptors that have multiple binding sites .
When
substrate bonds to the active site of one enzymatic subunit, the rest of the subunits are stimulated and become active.
...
Disulfide bond
... in prokaryotes
Oxidative protein folding in eukaryotes : mechanisms and consequences
The human protein disulphide isomerase family:
substrate interactions and functional properties
...
Evolutionary developmental biology
... number or protein function" (Carroll 2000).
These researchers argue that the combinatorial nature of transcriptional regulation allows a rich
substrate for morphological diversity, since variations in the level, pattern, or timing of gene expression , may provide more variation for natural ...
Phosphorylation
... mitochondrion by addition of a third phosphate group to ADP in a process referred to as oxidative phosphorylation . ATP is also synthesized by
substrate level phosphorylation during glycolysis .
ATP is synthesized at the expense of solar energy by photophosphorylation in the chloroplasts of plant ...
Ribulose-1,5-bisphosphate
...
ribulose-1,5-bisphosphate (RuBP) is an important intermediate in the Calvin cycle taking place during photosynthesis . It is the
substrate used by the enzyme RubisCO to fix carbon dioxide .
...