<s>
PSI	B-Application
Protein	I-Application
Classifier	I-Application
is	O
a	O
program	O
generalizing	O
the	O
results	O
of	O
both	O
successive	O
and	O
independent	O
iterations	B-Algorithm
of	O
the	O
PSI-BLAST	O
program	O
.	O
</s>
<s>
PSI	B-Application
Protein	I-Application
Classifier	I-Application
determines	O
belonging	O
of	O
the	O
found	O
by	O
PSI-BLAST	O
proteins	O
to	O
the	O
known	O
families	O
.	O
</s>
<s>
PSI	B-Application
Protein	I-Application
Classifier	I-Application
allows	O
to	O
measure	O
evolutionary	O
distances	O
between	O
families	O
of	O
homologous	O
proteins	O
by	O
the	O
number	O
of	O
PSI-BLAST	O
iterations	B-Algorithm
.	O
</s>
