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Literature summary for 3.4.22.15 extracted from

  • V÷lkel, H.; Kurz, U.; Linder, J.; Klumpp, S.; Gnau, V.; Jung, G.; Schultz, J.E.
    Cathepsin L is an intracellular and extracellular protease in Paramecium tetraurelia. Purification, cloning, sequencing and specific inhibition by its expressed propeptide (1996), Eur. J. Biochem., 238, 198-206.
    View publication on PubMed

Cloned(Commentary)

Cloned (Comment) Organism
the cDNA codes for a preproregion of 108 amino acids. The putative proregion of 86 amino acids which contains the characteristic conserved ERFNIN motif, is fused with a His6 tag, expressed in Escherichia coli Paramecium tetraurelia

Inhibitors

Inhibitors Comment Organism Structure
CuCl2
-
Paramecium tetraurelia
cystatin
-
Paramecium tetraurelia
leupeptin
-
Paramecium tetraurelia
NEM
-
Paramecium tetraurelia
p-hydroxymercuribenzoate
-
Paramecium tetraurelia
propeptide
-
Paramecium tetraurelia
tosyl-Lys-CH2Cl
-
Paramecium tetraurelia
ZnCl2
-
Paramecium tetraurelia

Localization

Localization Comment Organism GeneOntology No. Textmining
extracellular and intracellular Paramecium tetraurelia
-
-

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
22161
-
x * 22161, calculation from nucleotide sequence Paramecium tetraurelia
22500
-
x * 22500, ion-spray mass spectrometry Paramecium tetraurelia
27000
-
gel filtration Paramecium tetraurelia

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
additional information Paramecium tetraurelia involved in extracellular food digestion ?
-
?

Organism

Organism UniProt Comment Textmining
Paramecium tetraurelia
-
-
-

Purification (Commentary)

Purification (Comment) Organism
-
Paramecium tetraurelia

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
azocasein + H2O
-
Paramecium tetraurelia ?
-
?
benzoyl-Phe-Val-Arg-4-methylcoumarin 7-amide + H2O
-
Paramecium tetraurelia ?
-
?
glycogen phosphorylase + H2O
-
Paramecium tetraurelia ?
-
?
additional information involved in extracellular food digestion Paramecium tetraurelia ?
-
?
phosphorylase a + H2O
-
Paramecium tetraurelia ?
-
?
serum albumin + H2O
-
Paramecium tetraurelia ?
-
?

Subunits

Subunits Comment Organism
? x * 22161, calculation from nucleotide sequence Paramecium tetraurelia
? x * 22500, ion-spray mass spectrometry Paramecium tetraurelia

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
56
-
-
Paramecium tetraurelia

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
6.5
-
hydrolysis of phosphorylase a Paramecium tetraurelia

pH Range

pH Minimum pH Maximum Comment Organism
4.5 9 50% of maximal activity at pH 4.5 and at pH 9.0, hydrolysis of phosphorylase a Paramecium tetraurelia