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MCAT BIOCHEM

MCAT

TermDefinition
where does kinesin move to? + end (toward cell membrane)
where does dynein move to? - end (toward centrosome)
motor proteins kinesin, dyenin, myosin
cytoskeletal elements microtubules, collagen, elastin, keratin
signaling proteins antibodies and peptide hormones
isomerase catalyzes rearrangement of bonds
ligase catalyzes joining of molecules
transferase catalyzes transfer of functional groups
lyase catalyzes breaking a molecule without water
hydrolase catalyzes breaking a molecule with water
oxireductase catalyses transfer of electron between molecules
coenzymes proteins
cofactors ions (can be metals)
prosthetic group cofactors or coenzymes that are bound tight to enzyme
holoenzymes enzyme w/ cofactor or coenzyme
apoenzyme enzyme without cofactor or coenzyme
increase in Km decrease in binding affinity
decrease in Km increase in binding affinity
catalytic efficiency kcat/Km
kcat catalytic efficiency (speed of enzyme)
competitive inhibition Vmax-same, Km-increases
uncompetitive inhibition Vmax-decreases, Km-decreases
mixed inhibition Vmax-decreases, Km-decreases or increases
noncompetitive inhibition (type of mixed) Vm-decreases, Km-stays the same
Created by: 1744812509054986
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