Organism
Porphyromonas gingivalis (strain ATCC 33277 / DSM 20709 / CIP 103683 / JCM 12257 / NCTC 11834 / 2561)
Function
Cysteine proteinase with a strong preference for substrates with Lys in the P1 position. Hydrolyzes bovine hemoglobin, bovine serum albumin, casein, human placental type I collagen and human IgA and IgG. Disrupts the functions of polymorphonuclear leukocytes. May act as a virulence factor in the development of peridontal disease. Involved in the coaggregation of P.gingivalis with other oral bacteria.
Similarity
Belongs to the peptidase C25 family.
Sequence
MRKLLLLIAASLLGVGLYAQSAKIKLDAPTTRTTCTNNSFKQFDASFSFNEVELTKVETKGGTFASVSIPGAFPTGEVGSPEVPAVRKLIAVPVGATPVVRVKSFTEQVYSLNQYGSEKLMPHQPSMSKSDDPEKVPFVYNAAAYARKGFVGQELTQVEMLGTMRGVRIAALTINPVQYDVVANQLKVRNNIEIEVSFQGADEVATQRLYDASFSPYFETAYKQLFNRDVYTDHGDLYNTPVRMLVVAGAKFKEALKPWLTWKAQKGFYLDVHYTDEAEVGTTNASIKAFIHKKYNDGLAASAAPVFLALVGDTDVISGEKGKKTKKVTDLYYSAVDGDYFPEMYTFRMSASSPEELTNIIDKVLMYEKATMPDKSYLEKALLIAGADSYWNPKIGQQTIKYAVQYYYNQDHGYTDVYSYPKAPYTGCYSHLNTGVGFANYTAHGSETSWADPSLTATQVKALTNKDKYFLAIGNCCVTAQFDYPQPCFGEVMTRVKEKGAYAYIGSSPNSYWGEDYYWSVGANAVFGVQPTFEGTSMGSYDATFLEDSYNTVNSIMWAGNLAATHAGNIGNITHIGAHYYWEAYHVLGDGSVMPYRAMPKTNTYTLPASLPQNQASYSIQASAGSYVAISKDGVLYGTGVANASGVATVNMTKQITENGNYDVVITRSNYLPVIKQIQAGEPSPYQPVSNLTATTQGQKVTLKWDAPSAKKAEASREVKRIGDGLFVTIEPANDVRANEAKVVLAADNVWGDNTGYQFLLDADHNTFGSVIPATGPLFTGTASSNLYSANFEYLIPANADPVVTTQNIIVTGQGEVVIPGGVYDYCITNPEPASGKMWIAGDGGNQPARYDDFTFEAGKKYTFTMRRAGMGDGTDMEVEDDSPASYTYTVYRDGTKIQEGLTATTFEEDGVAAGNHEYCVEVKYTAGVSPKVCKDVTVEGSNEFAPVQNLTGSAVGQKVTLKWDAPNGTPNPNPNPNPGTTTLSESFENGIPASWKTIDADGDGHGWKPGNAPGIAGYNSNGCVYSESFGLGGIGVLTPDNYLITPALDLPNGGKLTFWVCAQDANYASEHYAVYASSTGNDASNFTNALLEETITAKGVRSPEAIRGRIQGTWRQKTVDLPAGTKYVAFRHFQSTDMFYIDLDEVEIKANGKRADFTETFESSTHGEAPAEWTTIDADGDGQDWLCLSSGQLDWLTAHGGTNVVASFSWNGMALNPDNYLISKDVTGATKVKYYYAVNDGFPGDHYAVMISKTGTNAGDFTVVFEETPNGINKGGARFGLSTEANGAKPQSVWIERTVDLPAGTKYVAFRHYNCSDLNYILLDDIQFTMGGSPTPTDYTYTVYRDGTKIKEGLTETTFEEDGVATGNHEYCVEVKYTAGVSPKVCVNVTINPTQFNPVKNLKAQPDGGDVVLKWEAPSGKRGELLNEDFEGDAIPTGWTALDADGDGNNWDITLNEFTRGERHVLSPLRASNVAISYSSLLQGQEYLPLTPNNFLITPKVEGAKKITYKVGSPGLPQWSHDHYALCISKSGTAAADFEVIFEETMTYTQGGANLTREKDLPAGTKYVAFRHYNCTDVLGIMIDDVVITGEGEGPSYTYTVYRDGTKIQEGLTETTYRDAGMSAQSHEYCVEVKYAAGVSPKVCVDYIPDGVADVTAQKPYTLTVVGKTITVTCQGEAMIYDMNGRRLAAGRNTVVYTAQGGYYAVMVVVDGKSYVEKLAIK