DDBJ Amino Acid Sequence Database
                                     (DAD)

                                  Release 1.1
                                August 23, 1996

    This is a test release of DDBJ Amino Acid Sequence Database (DAD).  
This database was created by extracting all translated sequences from 
DDBJ entries.  The release 1.1 was made from DDBJ release 26 (June 1996).

1. Format of DAD Entries

    DAD is divided into 16 files according to the organisms from which 
amino acid sequences are derived.  The divisions are the same as those of 
DDBJ DNA Database.  Please refer to the release note of DDBJ (filename: 
ddbjrel.txt).
    All the amino acid sequences are stored in a fasta-like format (ODEN 
format).  The first line of an entry has a character '>' followed by an 
accession number of the entry, its PID (protein ID), and the product name 
if it is known.  Accession number of DAD is comprised of DDBJ accession 
number and a consecutive integer that begins from 1.  These two numbers 
are combined by a hyphen (-).  For example, amino acid sequences extracted 
from DDBJ entry D12345 have accession numbers D12345-1, D12345-2, etc.
    An amino acid sequence begins from the next line of accession number.  
Up to sixty amino acids are written on one line.  Following the amino acid 
sequence, there is a double slash (//), which means the end of the entry.  
Below is an example of DAD entry.


>X65727-1 PID:g825605 glutathione S-transferase
MAEKPKLHYSNTRGRMESIRWLLAAAGVEFEEKFIKSAEDLDKLRNDGYLMFQQVPMVEI
DGMKLVQTRAILNYIASKYNLYGKDIKEKALIDMYIEGIADLGEMILLLPFTQPEEQDAK
LALIQEKTKNRYFPAFEKVLKSHGQDYLVGNKLSRADIHLVELLYYVEELDSSLISSFPL
LKALKTRISNLPTVKKFLQPGSPRKPPMDEKSLEESRKIFRF
//


2. Statistics of DAD

    The following are statistics of this release of DAD.


total number of entries          182,159
total length of sequences     55,959,988 aa
average length                       307.2 aa
name of longest sequence      X90568-1 PID:g1212992 
length of longest sequence        26,926 aa (X90568-1)


file         number of entries
------------------------------
ddbjbct.tr               40457
ddbjest.tr                 888
ddbjhum.tr               19406
ddbjinv.tr               18876
ddbjmam.tr                5665
ddbjorg.tr                 627
ddbjpat.tr                1811
ddbjphg.tr                2406
ddbjpln.tr               29356
ddbjpri.tr                1457
ddbjrod.tr               19015
ddbjsts.tr                  11
ddbjsyn.tr                1550
ddbjuna.tr                 569
ddbjvrl.tr               32769
ddbjvrt.tr                7296
------------------------------
total                   182159