Provided by: acedb-other_4.9.39+dfsg.01-5_amd64 bug


       efetch - retrieve entries from sequence databases.


       efetch -options [database:]<query>


       In  the late 90s efetch was a very popular tool to extremely quickly retrieve entries from
       the most common public bioinformatics sequence and motif databases.


       SWissprot/SP, PIR, WOrmpep/WP, EMbl, GEnbank/GB, ProDom, ProSite


       -a            Search with Accession number

       -f            Fasta format output

       -q            Sequence only output (one line)

       -s <#>        Start at position #

       -e <#>        Stop at position #

       -o            More options and info...

       -D <dir> Specify database directory

       -H Display index header data

       -p Display entrynames in search path

       -r Print sequence in 'raw' format

       -m Fetch from mixed mini database

       -M Mini format output

       -b Do NOT reverse the order of bytes (SunOS, IRIX do reverse, Alpha not)

       -d <dbfile> Specify database file (avoid this)

       -i <idxfile> Specify index file (avoid this)

       -l <divfile> Specify division lookup table (avoid this)

       -B <database> Specify database (archaic)

       -A Only return entryname for accession number

       -n <name> Give the sequence this name

       -x Don't require query to match entry's name exactly (avoid)

       -w For Wormpep: also fetch cross-referenced SwissProt entry

       -h shows this help text


       SWDIR      = SwissProt  directory -  database  and  EMBL  index  files  PIRDIR      =  PIR
       --  "  --  WORMDIR     =  Wormpep     -- " -- EMBLDIR    = EMBL       -- " -- GBDIR      =
       Genbank    -- " -- PRODOMDIR  = ProDom     -- " -- PROSITEDIR = ProSite    -- "  --  DBDIR
       = User's own -- " -- (fasta format)

       SEQDB  database file (default SwissProt)

              SEQDBIDX index file DIVTABL  division lookup table

              Ex. setenv DBDIR /pubseq/seqlibs/embl/

              Note that Prodom family consensus seqs can be fetched by PD:_#


       Erik Sonnhammer (

                                            July 2010                                   EFETCH(1)