Table 1.

Statistic of annotation results.

Database/Number	pH 4.0 vs. pH 7.0	pH 4.0 vs. pH 10.0	pH 7.0 vs. pH 10.0
GO	652	1331	1132
KEGG	479	1021	862
KOG	354	695	602
Pfam	680	1408	1183
Swissprot	452	886	731
NR	1019	1923	1756
Total	1019	1952	1756