>tr|A2C691|A2C691_PROM3 Possible serine protease OS=Prochlorococcus marinus (strain MIT 9303) OX=59922 GN=P9303_02461 PE=4 SV=1
MSALLEESSAELRLSSQSSGLSRVFRGGLLLGTGLVCLPVLSGLSPQPLQAASAATALSR
QSFVADAVARSGPAVVTLETSRTVRSMGMAGLPQGLLADPLFQHFFGLPGRVAPRARIER
GQGSGVIFSAEGLVLTNAHVVEKTDQLMVGLPDGRRVSGRLVGQDTITDLAVVQLDGSGP
WPTAPLGDSDQLRVGDWAIAVGNPFGLENTVTLGIVSNLNRNVSQLGISGKRLDLIQTDA
AINPGNSGGPLLNSEGNVVGINTLVRSGPGAGLGFAIPINRARTIAQQLVERGRASHPMV
GVGLSPVPSARSGEANSPGAVIRSVVPGGPAASAGLKVDDVIVSVEGLPIDGPAEVVSAI
DRHGVGSPITLGLIRGDSRIELAVTPVELTAMQAP