3.4.21.1 chymotrypsin - 3.4.21.10 acrosin - 3.4.21.100 sedolisin - 3.4.21.101 xanthomonalisin - 3.4.21.102 C-terminal processing peptidase - 3.4.21.103 physarolisin - 3.4.21.104 mannan-binding lectin-associated serine protease-2 - 3.4.21.105 rhomboid protease - 3.4.21.106 hepsin - 3.4.21.107 peptidase Do - 3.4.21.108 HtrA2 peptidase - 3.4.21.109 matriptase - 3.4.21.11 elastase transferred to EC 3.4.21.36, EC 3.4.21.37 3.4.21.110 C5a peptidase - 3.4.21.111 aqualysin 1 - 3.4.21.112 site-1 protease - 3.4.21.113 pestivirus NS3 polyprotein peptidase - 3.4.21.114 equine arterivirus serine peptidase - 3.4.21.115 infectious pancreatic necrosis birnavirus Vp4 peptidase - 3.4.21.116 SpoIVB peptidase - 3.4.21.117 stratum corneum chymotryptic enzyme - 3.4.21.118 kallikrein 8 - 3.4.21.119 kallikrein 13 - 3.4.21.12 alpha-lytic endopeptidase - 3.4.21.120 oviductin - 3.4.21.121 Lys-Lys/Arg-Xaa endopeptidase - 3.4.21.122 transmembrane protease serine 2 - 3.4.21.13 phaseolus proteinase transferred to EC 3.4.16.1 3.4.21.14 microbial serine proteases transferred to EC 3.4.21.62, EC 3.4.21.63, EC 3.4.21.64, EC 3.4.21.65, EC 3.4.21.66, EC 3.4.21.67 3.4.21.15 Aspergillus alkaline proteinase transferred to EC 3.4.21.63 3.4.21.16 Alternaria serine proteinase deleted 3.4.21.17 Arthrobacter serine proteinase deleted 3.4.21.18 Tenebrio alpha-proteinase deleted 3.4.21.19 glutamyl endopeptidase - 3.4.21.2 chymotrypsin C - 3.4.21.20 cathepsin G - 3.4.21.21 coagulation factor VIIa - 3.4.21.22 coagulation factor IXa - 3.4.21.23 Vipera russelli proteinase deleted 3.4.21.24 red cell neutral endopeptidase deleted 3.4.21.25 cucumisin - 3.4.21.26 prolyl oligopeptidase - 3.4.21.27 coagulation factor XIa - 3.4.21.28 Agkistrodon serine proteinase transferred to EC 3.4.21.74 3.4.21.29 Bothrops atrox serine proteinase transferred to EC 3.4.21.74 3.4.21.3 metridin - 3.4.21.30 Crotalus adamanteus serine proteinase transferred to EC 3.4.21.74 3.4.21.31 urokinase transferred to EC 3.4.21.68, EC 3.4.21.73 3.4.21.32 brachyurin - 3.4.21.33 Entomophthora collagenolytic proteinase deleted 3.4.21.34 plasma kallikrein - 3.4.21.35 tissue kallikrein - 3.4.21.36 pancreatic elastase - 3.4.21.37 leukocyte elastase - 3.4.21.38 coagulation factor XIIa - 3.4.21.39 chymase - 3.4.21.4 trypsin - 3.4.21.40 submandibular proteinase A deleted 3.4.21.41 complement subcomponent C1r - 3.4.21.42 complement subcomponent C1s - 3.4.21.43 classical-complement-pathway C3/C5 convertase - 3.4.21.44 complement component C5 convertase transferred to EC 3.4.21.43 3.4.21.45 complement factor I - 3.4.21.46 complement factor D - 3.4.21.47 alternative-complement-pathway C3/C5 convertase - 3.4.21.48 cerevisin - 3.4.21.49 hypodermin C - 3.4.21.5 thrombin - 3.4.21.50 lysyl endopeptidase - 3.4.21.51 leukocyte-membrane neutral endopeptidase deleted 3.4.21.52 cathepsin R deleted 3.4.21.53 Endopeptidase La - 3.4.21.54 gamma-Renin - 3.4.21.55 Venombin AB - 3.4.21.56 euphorbain deleted 3.4.21.57 Leucyl endopeptidase - 3.4.21.58 prohormone serine proteinase deleted 3.4.21.59 Tryptase - 3.4.21.6 coagulation factor Xa - 3.4.21.60 Scutelarin - 3.4.21.61 Kexin - 3.4.21.62 Subtilisin - 3.4.21.63 Oryzin - 3.4.21.64 peptidase K - 3.4.21.65 Thermomycolin - 3.4.21.66 Thermitase - 3.4.21.67 Endopeptidase So - 3.4.21.68 t-Plasminogen activator - 3.4.21.69 Protein C (activated) - 3.4.21.7 plasmin - 3.4.21.70 Pancreatic endopeptidase E - 3.4.21.71 Pancreatic elastase II - 3.4.21.72 IgA-specific serine endopeptidase - 3.4.21.73 u-Plasminogen activator - 3.4.21.74 venombin A - 3.4.21.75 Furin - 3.4.21.76 Myeloblastin - 3.4.21.77 semenogelase - 3.4.21.78 granzyme A - 3.4.21.79 granzyme B - 3.4.21.8 kallikrein transferred to EC 3.4.21.34, EC 3.4.21.35 3.4.21.80 Streptogrisin A - 3.4.21.81 Streptogrisin B - 3.4.21.82 Glutamyl endopeptidase II - 3.4.21.83 Oligopeptidase B - 3.4.21.84 limulus clotting factor C - 3.4.21.85 limulus clotting factor B - 3.4.21.86 Limulus clotting enzyme - 3.4.21.87 omptin transferred to EC 3.4.23.49 3.4.21.88 Repressor LexA - 3.4.21.89 Signal peptidase I - 3.4.21.9 enteropeptidase - 3.4.21.90 Togavirin - 3.4.21.91 Flavivirin - 3.4.21.92 Endopeptidase Clp - 3.4.21.93 Proprotein convertase 1 - 3.4.21.94 proprotein convertase 2 - 3.4.21.95 Snake venom factor V activator - 3.4.21.96 Lactocepin - 3.4.21.97 assemblin - 3.4.21.98 hepacivirin - 3.4.21.99 spermosin - 3.4.21.B1 hyaluronan-binding serine protease preliminary BRENDA-supplied EC number 3.4.21.B10 neurosin preliminary BRENDA-supplied EC number 3.4.21.B12 prostase preliminary BRENDA-supplied EC number 3.4.21.B2 granzyme M preliminary BRENDA-supplied EC number 3.4.21.B21 trepolisin preliminary BRENDA-supplied EC number 3.4.21.B24 proprotein convertase 4 preliminary BRENDA-supplied EC number 3.4.21.B25 PACE4 proprotein convertase preliminary BRENDA-supplied EC number 3.4.21.B26 proprotein convertase 5 preliminary BRENDA-supplied EC number 3.4.21.B27 proprotein convertase 7 preliminary BRENDA-supplied EC number 3.4.21.B28 fibroblast activation protein alpha subunit preliminary BRENDA-supplied EC number 3.4.21.B3 duodenase preliminary BRENDA-supplied EC number 3.4.21.B30 UmuD protein preliminary BRENDA-supplied EC number 3.4.21.B34 tricorn core protease (archaea) preliminary BRENDA-supplied EC number 3.4.21.B39 stratum corneum tryptic enzyme preliminary BRENDA-supplied EC number 3.4.21.B4 granzyme K preliminary BRENDA-supplied EC number 3.4.21.B40 kallikrein 9 preliminary BRENDA-supplied EC number 3.4.21.B41 kallikrein 10 preliminary BRENDA-supplied EC number 3.4.21.B42 hippostasin preliminary BRENDA-supplied EC number 3.4.21.B43 kallikrein 12 preliminary BRENDA-supplied EC number 3.4.21.B45 kallikrein 14 preliminary BRENDA-supplied EC number 3.4.21.B48 kumamolysin preliminary BRENDA-supplied EC number 3.4.21.B49 ctpB peptidase preliminary BRENDA-supplied EC number 3.4.21.B5 mast cell protease 5 preliminary BRENDA-supplied EC number 3.4.21.B50 DegQ peptidase preliminary BRENDA-supplied EC number 3.4.21.B52 thermostable serine endopeptidase (Sulfolobus) preliminary BRENDA-supplied EC number 3.4.21.B54 Pyrococcus abyssi serine endopeptidase preliminary BRENDA-supplied EC number 3.4.21.B55 pyrolysin preliminary BRENDA-supplied EC number 3.4.21.B56 Pyrococcus horikoshii membrane protease PH1510 preliminary BRENDA-supplied EC number 3.4.21.B57 pernisine preliminary BRENDA-supplied EC number 3.4.21.B58 pernilase preliminary BRENDA-supplied EC number 3.4.21.B59 granzyme H preliminary BRENDA-supplied EC number 3.4.21.B6 prostasin preliminary BRENDA-supplied EC number 3.4.21.B60 transmembrane protease serine 2 deleted, replaced by EC 3.4.21.122 3.4.21.B61 transmembrane protease serine 11D preliminary BRENDA-supplied EC number 3.4.21.B7 mannan-binding lectin-associated serine protease 1 preliminary BRENDA-supplied EC number