CHMI-2227EL Lecture Notes - Lecture 2: Scurvy, Phenyl Group, Aspartic Acid
27 Jun 2018
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Biochemistry - Day 2 2018.01.17
Classification of Amino Acids (Continued)
- Non-polar Amino Acids
-4) Leucine (Leu, L)
-Has a 4-carbon branched side chain, with 2 methyl groups off of second carbon
(y-shape)
-5) Isoleucine (Ile, I)
-Has a 4-carbon branched side chain, with an ethyl and a methyl branch off of first
carbon
-Hydroxy Amino Acids
-Have alcoholic functional groups
-6) Serine (Ser, S)
-Alcohol group off of one carbon chain
-7) Threonine (Thr, T)
-Alcohol group off of 1st carbon in a 2 carbon chain
-8)Cysteine (Cys, C)
-Has a thiol group (SH) off of one carbon chain
-9) Methionine (Met, M)
-Ethyl group with a thiol group and then a methyl group
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Document Summary
Has a 4-carbon branched side chain, with 2 methyl groups off of second carbon (y-shape) Has a 4-carbon branched side chain, with an ethyl and a methyl branch off of rst carbon. Alcohol group off of one carbon chain. Alcohol group off of 1st carbon in a 2 carbon chain. Has a thiol group (sh) off of one carbon chain. Ethyl group with a thiol group and then a methyl group. 10) aspartic acid (asp, d (think of it as aspardic)) Contains a carboxyl group off of methyl chain. Contains a carboxyl group off of an ethyl chain. Contains a guanidino group (this is a carbon surrounded by 3 amino groups, c(- Nh, =nh2, -nh2)), off of a propyl chain. Has a butyl chain with an amino group at the end (butylammonium group) Has a imidazole ring (a c=ch-n=ch-nh ring) off of a methyl chain. Has a heterocyclic pyrrolidine ring (c-nh2+-ch2-ch2-ch2 ring)
