The 'PT_SERVER' database ('*.arb' and '*.arb.pt') stored in '$ARBHOME/lib/pts' is used for probe target searching not the current database.
The 'PT_SERVER' database has to be updated ('ARB_NT/ETC/Probe Admin') if species entries should be considered for probe target searching which have been added or modified (sequence symbols) later than the date of the most recent 'PT_SERVER' database update.
Probe target searching does not depend on correctly aligned sequences and is not affected by any modifications of database entries except changes of sequence residues.
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