proteins Flashcards
A beta barrel is an example of what level of protein structure?
tertiary
a beta barrel is an example of what level of protein structure
tertiary
what amino acid is commonly found in reverse turns
proline, followed closely by glycine.
are all of the 20 amino acids found in proteins chiral?
one exception: glycine
is the alpha helix typically right handed
yes
do disulphide bridges occur between methionine residues
No, disulfide bridges do not occur between methionine residues. Disulfide bridges (or disulfide bonds) are formed specifically between the sulfur atoms of two cysteine residues
hydrogen bonds are an example of what molecular interaction
non-covalent dipole-dipole interactions
what name is given to the interaction between oppositely charged amino acid side chains in a protein
salt bridge
what name of compounds do nucleotide bases belong to
heterocyclic aromatic compounds (or heterocycles).
The conversion of glucose from the open chain to the closed ring (pyranose) form, forming a hemiacetal group is best described as what type of reaction?
nucleophilic substitution reaction
are Hydrophobic (non-polar) amino acids often found on the surface of a globular protein
No, hydrophobic (non-polar) amino acids are not typically found on the surface of a globular protein. Instead, they are more commonly found in the interior of the protein, away from the aqueous environment.
