20 Standard Amino Acids

Biology 0150 Amino Acid Study Flashcards

Glycine (Gly/G)

Glycine (Gly/G)

Glycine (Gly/G)

-Nonpolar,
-aliphatic R Groups,
-single H atom, considered a “special case”
-hydrophobic

Alanine (Ala/A)

Proline (Pro/P)

Proline (Pro/P)

-Nonpolar,
-aliphatic R Groups,
-considered a “special case” with a unique cyclic structure
-hydrophobic

Valine (Val/V)

-Nonpolar,
-aliphatic R Groups
-hydrophobic

Leucine (Leu/L)

-Nonpolar,
-aliphatic R Groups
-hydrophobic

Isoleucine (Ile/I)

-Nonpolar,
-aliphatic R Groups
-hydrophobic

Methionine (Met/M)

-Nonpolar,
-aliphatic R Groups
-hydrophobic

Phenylalanine (Phe/F)

-Nonpolar,
-aromatic R groups
-hydrophobic

Tyrosine (Tyr/Y)

-Aromatic R groups
-Polar
-Hydrophilic
-uncharged side chain
-no charge

Tryptophan (Trp/W)

-Nonpolar
-Aromatic R groups
-Hydrophobic

Serine (Ser/S)

-Polar,
-uncharged R groups
-Hydrophilic
-Does not have a charge

Threonine (Thr/T)

-Polar,
-uncharged R groups
-Hydrophilic
-Does not have a charge

Cysteine (Cys/C)

Cysteine (Cys/C)

-Non-Polar,
-uncharged R groups
-Hydrophobic
-”special case”
-Contains a sulfhydryl

Asparagine (Asn/N)

-Polar,
-uncharged R groups
-hydrophilic
-uncharged amino acid

Glutamine (Gln/Q)

-Polar,
-uncharged R groups
-Hydrophilic
-Uncharged amino acid

Lysine (Lys/K)

-Positively charged amino acid
-Positive R groups
-Polar
-Hydrophilic

Arginine (Arg/R)

-Positively charged
-Positive R groups
-Polar
-Hydrophilic

Histidine (His/H)

-Positively charged
-Positive R groups
-Polar
-Hydrophilic

Aspartic Acid/Aspartate (Asp/D)

-Negatively charged
-Negative R groups
-Polar
-Hydrophilic

Glutumate/Glutamic Acid (Glu/E)

-Negatively charged
-Negative R groups
-Polar
-Hydrophilic