Amino Acid Explorer

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   Description of Displayed Data

The data contents of the available columns are described below.

1-letter codeThe standard IUPAC single letter codes for each amino acid
3-letter codeThe standard IUPAC three letter codes for each amino acid
Full nameThe IUPAC trivial name of each amino acid
ChemistrySymbols indicating the chemical properties of each amino acid side chain
AbundanceThe frequency of occurrence, expressed as a percentage, of each amino acid in all NP, AP and YP records in the NCBI Reference Sequence database as of January 17, 2006.
Side chain flexibilityA general description of the possible side chain motions caused by rotations about covalent bonds.
Molecular interaction modesA list of modes in which side chain atoms may interact with atoms of other molecules including van der Waals interactions, hydrogen bonds, ionic bonds, and disulfide bonds.
Potential side chain hydrogen bondsThe total number of possible hydrogen bonds (both donated and accepted) involving side chain atoms
Residue molecular weightThe molecular weight of the amino acid residue incorporated into a polypeptide chain, which is equal to the molecular weight of the free amino acid minus the molecular weight of water
Isoelectric pointThe pH at which the free amino acid is a neutral species (with no net charge)
HydrophobicityA normalized hydrobicity scale (Eisenberg, D. et al, J. Mol. Biol. (1984) 179:125) in which the most hydrophobic amino acid has a value of 1.000 and the most hydrophilic has a value of 0.0000. This is the same scale used in Cn3D 4.1.
Standard codon(s)The RNA codons encoding each amino acid using the standard translation table.