remembering aa

nonpolar:

• v a l g i m p (p)

• v: valine, val

  • R group is one stick and two methyl groups that look like a ‘v’

• a: alanine, ala

  • r group is a stick

• l: leucine, leu

  • y shape - two ethyl chain with the ‘v’ shape at the end

• g: glycine, gly

  • r group is a single h

• i: isoleucine, ile

  • ethyl group, like leu but without the ‘v’

• m: methionine, met

  • ethyl-sulfur-methyl

  • only nonpolar to have a sulfur

  • sulfur is shielded from meth

• p: proline, pro

  • 5 member ring that connects with the n

  • protect the house by calling 811 to check for pipe*line*

• (p) : phenylalanine

aromatic:

• p ty tr

  • increasing in complexity

  • pity-ter (pitier)

• p: phenylalanine, phe

  • stick and a benzene attached

• ty: tyrosine, tyr

  • stick, benzene, OH on opposite side

• tr: tryptophan, trp

  • stick, sideways house with nitrogen at the peak and the walls are made of C=C with the bottom wall sharing a side with benzene

polar uncharged:

• g a c t s

• g: glutamine, gln

  • ethyl, asparagus end (CNH2O)

• a: asparagine, asn

  • methyl, asparagus end (CNH2O)

• c: cysteine, cys

  • ch-shhhhh

  • librarian cutting off

• t: threonine, thr

  • coach (CO-CH2)

• s: serine, ser

  • ch-OH

positively charged:

• h a l

• h: histidine, his

  • ch2-sideways house with a reinforced floor and bottom roof, + nitrogens holding the roof up

• a: arginine, arg

  • ch2 3 times, n-c connected to 2 n’s (1 with 2x bond)

• l: lysine, lys

  • 4ch2 then n

  • 4 letters (lysi) before reaching the n

negatively charged:

• a g

• a: asparate, asp

  • ch(2)COO-

  • choochoo traint

• g: glutamate, glu

  • CHCHC(H)OO