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BMRB

Biological Magnetic Resonance Data Bank


A Repository for Data from NMR Spectroscopy on Proteins, Peptides, Nucleic Acids, and other Biomolecules
Member of WWPDB

Amino Acid Browser

Alanine Ala    A
Cysteine Cys    C
Aspartic Acid Asp    D
Glutamic Acid Glu    E
Phenylalanine Phe    F
Glycine Gly    G
Histidine His    H
Isoleucine Ile    I
Lysine Lys    K
Leucine Leu    L
Methionine Met    M
Asparagine Asn    N
Proline Pro    P
Glutamine Gln    Q
Arginine Arg    R
Serine Ser    S
Threonine Thr    T
Valine Val    V
Tryptophan Trp    W
Tyrosine Tyr    Y
Polar, uncharged R group
- Nonessential in mammals
Codon Sequences:
UGU UGC
Cysteine image
C3H7NO2S
Mass Peptide
mass
Monoisotopic
mass
Occurence
in Protein
(%)
pKa 1
(-COOH)
pKa 2
(-NH3)
pKa R
(Side Chain)
pI Hydropathy
Index*
Hydrophobicity
Designation**
121.16 103.14 103.01 1.9 1.8 10.8 8.6 5.07 2.5 L

For the designation of atoms, IUPAC recommends the substitution of Greek letters by the equivalent uppercase Roman letters.

*A scale combining hydrophobicity and hydrophilicity of R groups; negative numbers tend to be hydrophilic, positive numbers tend to be hydrophobic.
**Hydrophobic = L, Hydrophilic = W, Neutral = N
References for information in the above tables and figures.
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