VERSION

This line consists of an accession number and a version number, like "AB123456.1", in which the digit(s) after the period is a version number.

The data open to public for the first time is version number as "1". The reason for adding VERSION is that since a released sequence sometimes revised by the submitter, the accession number alone cannot specify the sequence in question causing the user a trouble. The number is increased by one every time when a revised sequence is made public. And accession number will NOT be changed generally.

example
VERSION      AB000000.1

AB000000 －－ accession number

1 －－ version number

For MGA data

This line consists of a number assigned to a resources unit in which the digit(s) after the period is a version number.

Since the sequence of an MGA entry is not allowed to update, the version number has to be "1".

example
VERSION    ZZZZZ0000000.1

ZZZZZ000000 －－ number to a resource unit

1 －－ version number