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3.4.22.15: cathepsin L

This is an abbreviated version!
For detailed information about cathepsin L, go to the full flat file.

Word Map on EC 3.4.22.15

Reaction

similar to that of papain. As compared to cathepsin B, cathepsin L exhibits higher activity towards protein substrates, but has little activity on Z-Arg-Arg-NHMec, and no peptidyl-dipeptidase activity =

Synonyms

AgCatL, Aldrichina grahami cysteine proteinase, cat L, Cat L-A, Cath L, cath-L, cathepsin L, cathepsin L isoform CRA-b, cathepsin L-A, cathepsin L-A1, cathepsin L-A2, cathepsin L-A3, cathepsin L-B, cathepsin L-like, cathepsin L-like cysteine protease, cathepsin L-like enzyme, cathepsin L-like protease, cathepsin L-like protein, cathepsin L-like proteinase, cathepsin L-like rCPB2.8, cathepsin L1, cathepsin L1H, cathepsin L3, cathepsin-L, cathepsin-L T2V, CathL, CatL, CATL A IV, CATL-1, CATL-2, CatL1G, CatL1H, CatL5, CL1, CL3, CL41.5, CPL, cpl-1, CsCPL, CsCPL-m, CtL, CTSL, CTSL1, CTSL2, Cwp84, FhCL1, FhCL3, Har-CatL, human cathepsin L, major excreted protein, MEP, PDP, progesterone-dependent protein, rhodesain, SMCL1, SoCatL, sperm-histone protease, TsolCL

ECTree

     3 Hydrolases
         3.4 Acting on peptide bonds (peptidases)
             3.4.22 Cysteine endopeptidases
                3.4.22.15 cathepsin L

General Stability

General Stability on EC 3.4.22.15 - cathepsin L

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GENERAL STABILITY
ORGANISM
UNIPROT
LITERATURE
heparin reduces the stability of the pro form of cathepsin L at pH 5 by binding to a putative heparin binding motif (BBXB) in the pro-domain, in contrast heparin only slightly destabilizes the mature cathepsin L domain
MHC class II-associated invariant chain fragment from human kidney that has stabilizing effect on the enzyme
-
testican-1 stabilizes at neutral pH
-
very susceptible to loss of activity through autolysis
-
when no reducing agents are present in the assay environment, the activity of cathepsin L is markedly slowed down, and the rate of product formation is reduced by about half