ID CATL1_FASHE Reviewed; 20 AA. AC Q09093; DT 01-FEB-1995, integrated into UniProtKB/Swiss-Prot. DT 01-FEB-1995, sequence version 1. DT 16-JUN-2009, entry version 52. DE RecName: Full=Cathepsin L1; DE EC=3.4.22.15; DE Flags: Fragment; OS Fasciola hepatica (Liver fluke). OC Eukaryota; Metazoa; Platyhelminthes; Trematoda; Digenea; OC Echinostomida; Echinostomata; Echinostomatoidea; Fasciolidae; OC Fasciola. OX NCBI_TaxID=6192; RN [1] RP PROTEIN SEQUENCE. RX MEDLINE=94158959; PubMed=8114809; DOI=10.1016/0166-6851(93)90171-S; RA Smith A.M., Dowd A.J., McGonigle S., Keegan P.S., Brennan G., RA Trudgett A., Dalton J.P.; RT "Purification of a cathepsin L-like proteinase secreted by adult RT Fasciola hepatica."; RL Mol. Biochem. Parasitol. 62:1-8(1993). CC -!- FUNCTION: Thiol protease that assists the parasite in burrowing CC through the gut wall and liver of its mammalian host. CC -!- CATALYTIC ACTIVITY: Specificity close to that of papain. As CC compared to cathepsin B, cathepsin L exhibits higher activity CC toward protein substrates, but has little activity on Z-Arg-Arg- CC NHMec, and no peptidyl-dipeptidase activity. CC -!- SUBUNIT: Dimer of a heavy and a light chain linked by disulfide CC bonds. CC -!- SUBCELLULAR LOCATION: Lysosome. CC -!- SIMILARITY: Belongs to the peptidase C1 family. CC ----------------------------------------------------------------------- CC Copyrighted by the UniProt Consortium, see http://www.uniprot.org/terms CC Distributed under the Creative Commons Attribution-NoDerivs License CC ----------------------------------------------------------------------- DR PIR; S68785; S68785. DR MEROPS; C01.033; -. DR BRENDA; 3.4.22.15; 39370. DR GO; GO:0005764; C:lysosome; IEA:UniProtKB-SubCell. DR GO; GO:0008234; F:cysteine-type peptidase activity; IEA:UniProtKB-KW. DR GO; GO:0006508; P:proteolysis; IEA:InterPro. DR InterPro; IPR000169; Pept_cys_AS. DR InterPro; IPR000668; Peptidase_C1A_C. DR Pfam; PF00112; Peptidase_C1; 1. DR ProDom; PD000158; Peptidase_C1; 1. DR PROSITE; PS00640; THIOL_PROTEASE_ASN; PARTIAL. DR PROSITE; PS00139; THIOL_PROTEASE_CYS; PARTIAL. DR PROSITE; PS00639; THIOL_PROTEASE_HIS; PARTIAL. PE 1: Evidence at protein level; KW Direct protein sequencing; Disulfide bond; Hydrolase; Lysosome; KW Protease; Thiol protease. FT CHAIN 1 >20 Cathepsin L1. FT /FTId=PRO_0000050538. FT NON_TER 20 20 SQ SEQUENCE 20 AA; 2174 MW; 97CDEDB33055BCAE CRC64; AVPDKIDPRE SGYVTGVKDQ //