Flashcards in C4 Protein Deck (82)
Catalyzes formation or breakage of covalent bonds
Binds to DNA to switch genes on or off
Gene regulatory protein
Generates movement in cells and tissues
Used by cells to detect signals and transmit them to the cell's response machinery
Each succesive amino acid adds to the ? end of a peptide
Primary structure of protein?
amino acid sequence
Bond between amino acids in a protein
alpha-helix and beta-sheets are (1*,2*,3*) structures of Proteins
Denatured protein in water using urea. Then observed conformation reformed upon removal of urea.
amino acid sequence determines structure
The CAP protein has one large, and one small ?
Any segment of a polypeptide chain that can fold independently into a compact, stable structure
The secondary structure of proteins is generally a result of ?
The tertiary structure of proteins is a result of ?
side chain interactions
proteins with similar structure but different function
proteins made of four subunits
dimer of the same two polypeptides
hemoglobin is a dimer of ?
Simple, elongated, three-dimensinal protein
myosin has this structure
Proteins bind their ? with great specificity
What is meant by high affinity binding?
The ligand with a higher affinity will be present in the binding region more readily than one with a low affinity
Enzyme binds to ? of substrate
catalyze hydrolytic cleavage
hydrolysis of nucleic acids (cleaves phosphodiester bonds)
hydrolysis of proteins (breakdown peptide bonds)
hydrolytic removal of phosphate