Active siteThe
active site of an
enzyme is the
binding site where cata
lysis occurs. The structure and chemical properties of the
active site allow the recognition and binding of the
substrate.
Full article >>>active site: the portion of an
enzyme that interacts with the
substrate.
active transport: the movement of
molecules across a membrane from a region of low concentration to a region of high concentration that requires the expenditure of energy (
ATP).
Full article >>>Active site The region of an
enzyme responsible for cata
lysis.
Adaption
The ability to physiologically adjust to a new
environment while exposed to that particular
environment.
Full article >>>active siteThe specific portion of an
enzyme that attaches to the
substrate by means of weak chemical bonds.
active transport ...
Full article >>>Active siteThe folding of a
protein allows for interactions between
amino acids that may be distant from each other in the primary
sequence of the
protein.
Full article >>>Cartoon showing the
active site of an
enzyme.
Most
enzymes are larger than the
substrates they act on and only a very small portion of the
enzyme, around 10
amino acids, comes into direct contact with the
substrate(s).
Full article >>>catalytic
site See
active site. catecholamines
Hormones, such as
epinephrine, that are amino derivatives of catechol.
Full article >>>Such information will be critical to our understanding of the "relative rigidity" of the
active site of Pol b during cata
lysis, i.e., does the
active site remodel in the presence of either the correct or incorrect
nucleotide triphosphate?
Full article >>>The drastic displacement of the acyl-linked protease grossly disrupts its
active site and gives an overall loss of 40% of
ordered structure.
Full article >>>Non
competitive Inhibition occurs when the inhibitory chemical, which does not have to resemble the
substrate, binds to the
enzyme other than at the
active site. Lead binds to SH groups in this fashion.
Full article >>>A process that reduces the yield of
photosynthesis, because the
active site of rubisco accepts O2 in place of CO2 and generates no
ATP.
Full article >>>At lower concentrations, the
active sites on most of the
enzyme molecules are not filled because there is not much
substrate. Higher concentrations cause more collisions between the
molecules.
Full article >>>This
molecule fits into the
active site of the ABL
protein preventing
ATP from binding there. Without
ATP as a phosphate donor, the ABL
protein cannot phosphorylate its
substrate(s).
Full article >>>enzyme-
substrate complex The binding of a
substrate molecule to the
active site of an
enzyme.
ocytes A group of
prokaryotes currently
classified among the
Archaebacteria but possibly a sister group of
eukaryotes.
Full article >>>Motif: A recurring pattern of short
sequence of
DNA,
RNA, or
protein, that usually serves as a recognition
site or
active site. The same
motif can be found in a
variety of types of
organisms.
Full article >>>About 90% of
inteins (
protein introns) contain
domains whose
amino acid sequences are about 34% similar to those of the HO
site-specific
endonuclease. They also have a 12
residue sequence closely similar to the
residues of the HO
active site.
Full article >>>'"/>