University:
Purdue University
Course:
CHM 63400 | Biochemistry: Structural Aspects
Academic year:

2020
Views:

381

Pages:

2
Author:

Medonosh0

Amino Acid Residue Mass (-NHCHRCO-) -R Proton Affinity (kcal/mol) Glycine Gly G 57 -H 211.9 Alanine Valine Isoleucine Leucine Ala Val Ile Leu A V I L 71 99 113 113 -CH3 -CH(CH3)CH3 -CH(CH3)CH2CH3 -CH2CH(CH3)CH3 215.5 217.6 219.3 218.6 Serine Threonine Ser Thr S T 87 101 -CH2OH -CH(CH3)OH 218.6 220.5 Cysteine Methionine Cys Met C M 103 131 -CH2SH -CH2CH2SCH3 215.9 223.6 Aspartic Acid Glutamic Acid Asp Glu D E 115 129 -CH2C(O)OH -CH2CH2C(O)OH 217.2 218.2 Asparagine Glutamine Asn Gln N Q 114 128 -CH2C(O)NH2 -CH2CH2C(O)NH2 222.0 224.1 Phenylalanine Tyrosine Tryptophan Phe Tyr Trp F Y W 147 163 186 -CH2C6H5 -CH2C6H4OH CH2 220.6 221.0 226.8 N H Histidine His H CH2 137 236.0 NH N Lysine Arginine Lys Arg K R 128 156 -(CH2)4NH2 NH H N (CH2)3 238.0 251.2 C NH2 Proline (Note: this is an imino acid) Pro P O 97 C N 220.0 Structure of the Amino Acids O H 2N CH C OH R Structure of the Amide Bond in Proteins H N CH O R' C CH OH + NH2 H N -H2O CH C R O R' C CH R O N H O Formation of Disulfide Bonds O C Cysteine O H N C CH HS S S SH CH Cysteine CH NH N H C O C O C H N CH

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