Daily Updates
-------------
The following naming convention will be used at the EBI for the naming of
daily update files to the EMBL Nucleotide database. Each release is given a
number. The June release of the EMBL database will be Release 47. The next
update to appear will be the first one to apply to release 47. All updates to
this release will be sequentially numbered.
r47u001.dat.Z
r47u002.dat.Z
r47u003.dat.Z
This change from the date based numbering scheme allows us to issue more than
one update per day. This will allow us, if necessary, to keep the size of
updates below a given maximum and makes it easy for users to determine whether
or not any updates have been missed.
NIDs
------
The first entries containing NI numnbers will begin to appear this evening.
The NI line shows the Nucleotide Sequence ID number this number is associated
with the exact sequence in the entry and only changes when the sequence
changes. This sequence number is essential for the building of secondary
sequences (e.g a chromosome sequence which is constructed by concatenating
parts several existing sequences). Using the NI numbers it is possible to
point to the version of the sequence being used in the construction. The
process of adding NI numbers to the EMBL database included a full comparison
of all sequences in GenBank and EMBL databases to ensure that the sequences in
both databases are the same.
Matteo diTommaso
--------------------------------------------------------
E-mail: ditommaso at ebi.ac.uk
WWW: http://jupiter.ebi.ac.uk/~tommaso/
EMBL Outstation - European Bioinformatics Institute
Hinxton Hall, Hinxton, Cambs, CB10 1RQ United Kingdom
--------------------------------------------------------
