The 20 Standard Amino Acids, Grouped According to Side-Chain Polarity Nonpolar amino acids CH, CH, CH, CH,-CH H,N-C-COOH CH, CH,-CH H CH, CH,-CH CH, HN-C-COOH H,N-C-COOH H,N-C-COOH H,N-C-COOH H H H H...

determine which of the standard amino acids have a side chain with the following characteristics.

1. Contains an aromatic group


2. Contains the element sulfur


3. Contains a carboxyl group


4. Contains a hydroxyl group

Extracted text: The 20 Standard Amino Acids, Grouped According to Side-Chain Polarity Nonpolar amino acids CH, CH, CH, CH,-CH H,N-C-COOH CH, CH,-CH H CH, CH,-CH CH, HN-C-COOH H,N-C-COOH H,N-C-COOH H,N-C-COOH H H H H H Glycine (Gly, G) GLY-seen Alanine (Ala, A) AL-ah neen Valine (Val, V) VAY-leen Leucine (Leu, L) LO0-scen Isoleucine (Ile, I) eye-so-LOO-seen CH, NH CH, CH, H,N-C-COOH CH, H.C CH, CH, CH, HN-C-COOH H,N-C-COOH H,N-C-COOH H H H Proline (Pro, P) PRO-leen Phenylalanine (Phe, F) fen-il-AL-ah-neen Methionine (Met, M) me-THIGH-oh-neen Tryptophan (Trp, W) TRIP-toe-fane