CE PROGRAMME PERMET L'ACCES PAR MNEMONIQUE AUX SEQUENCES, COMPOSITIONS,
 DES PROTEINES CONTENUES DANS LA BANQUE NBRF

            P R O T E I N  S E Q U E N C E  D A T A B A S E
                                 of the
                 Protein Identification Resource (PIR)
            Supported by the Division of Research Resources
                               of the NIH
                        Release 2.1, August 1984
                   2784 sequences, 557759 amino acids
                  W.C. Barker, L.T. Hunt, B.C. Orcutt,
           D.G. George, L.S. Yeh, H.R. Chen, M.C. Blomquist,
            G.C. Johnson, E.I. Seibel-Ross, and R.S. Ledley
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                                Table 1
             One- and Three-letter Amino Acid Abbreviations
    A   Ala   Alanine                     C   Cys   Cysteine
    D   Asp   Aspartic acid               E   Glu   Glutamic acid
    F   Phe   Phenylalanine               G   Gly   Glycine
    H   His   Histidine                   I   Ile   Isoleucine
    K   Lys   Lysine                      L   Leu   Leucine
    M   Met   Methionine                  N   Asn   Asparagine
    P   Pro   Proline                     Q   Gln   Glutamine
    R   Arg   Arginine                    S   Ser   Serine
    T   Thr   Threonine                   V   Val   Valine
    W   Trp   Tryptophan                  Y   Tyr   Tyrosine
    B   Asx   Asp or Asn,         not distinguished
    Z   Glx   Glu or Gln,         not distinguished
    X    X    Undetermined or atypical   amino acid
         These abbreviations conform to those suggested by the
         IUPAC-IUB Commission on Biochemical Nomenclature, J.
         Biol. Chem. 243, 3557-3559, 1968.
                                Table 2
                    Punctuation in Protein Sequences
   A blank between two adjacent amino acids indicates that they are
   connected, as determined experimentally.
() Encloses a region, the composition but not the complete sequence
   of which has been determined experimentally, or encloses a single
   residue that has been tentatively identified.
=  Indicates )(, the juxtaposition of two regions of indeterminate
   sequence, while preserving proper spacing between residues.
/  Indicates that the adjacent amino acids are from different
   peptides, not necessarily connected. When the amino end of a
   protein has not been determined, / precedes the first residue.
   When the carboxyl end has not been determined, / follows the last
   residue. When )/, /(, or )/( are needed, only / is used.
.  Outside of parentheses, indicates the ends of sequenced fragments.
   The relative order of these fragments was not determined
   experimentally but is clear from homology or other indirect
   evidence.
.  Within parentheses, indicates that the amino acid to its left has
   been placed with at least 90% confidence by homology with known
   sequences.
,  Indicates that the amino acid to its left could not be positioned
   with confidence by homology. If the structure of related proteins
   is not known, the position of the amino acids within parentheses
   is arbitrary.
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