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15 Cards in this Set

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+ charged polar amino acids
histadine, arginine, lysine
- charged polar amino acids
glutamic acid, aspartic acid
nonpolar amino acids (that are hydrophobic)
valine, leucine, isoleucine, phenylalanine, tryptophan, proline
nonpolar amino acids (that are not too hydrophobic)
glycine and alanine
neutral polar amino acids (all hydrophilic)
glutamine, asparagine, serine, threonin, tyrosine, cysteine
phosphorylation
addition of PO4 (2-) to kinases
acetylation
addition of COCH3 to histones (target for binding)
methylation
-CH3, histones (target for binding)
glycosylation
branced or unbranched sugar added to cell surface proteins, stabilizes and adds functionality
prenylation
addition of long chain hydrocarbons to growth factors, targets them to membrane
ubiquitlyation
76 residue polypeptide, added to cyclin, target protein for degradation
disulfide bond
not assisted by an enzyme, form between different regions of the same or different extracellular proteins
side chain interactions of all nonpolar AAs participate (to some extent) in
hydrophobic interactions (glycine and alanine least of all)
Only nonpolar AA to form Hbonds
Tryptophan
AAs that form salt bridges
aspartic acid, glutamic acid, lysine, arginine (to a lesser extent- histadine)