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Literature summary for 3.4.22.1 extracted from

  • Stephens, A.; Rojo, L.; Araujo-Bernal, S.; Garcia-Carreno, F.; Muhlia-Almazan, A.
    Cathepsin B from the white shrimp Litopenaeus vannamei: cDNA sequence analysis, tissues-specific expression and biological activity (2012), Comp. Biochem. Physiol. B, 161, 32-40.
    View publication on PubMed
Search for more literature for 3.4.22.1

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
26900
-
 x * 26900, calculated from amino acid sequence Penaeus vannamei

Organism

Organism UniProt Comment Textmining
Penaeus vannamei
-
-
-

Source Tissue

Source Tissue Comment Organism Textmining
gastric juice
-
 Penaeus vannamei
-
gill highest expression and high activity in gills Penaeus vannamei
-
hemocyte high expression but no activity in hemocytes Penaeus vannamei
-
intestine
-
 Penaeus vannamei
-
midgut gland
-
 Penaeus vannamei
-
additional information the enzyme is not expressed in pleopods and eye stalk Penaeus vannamei
-
muscle
-
 Penaeus vannamei
-
terminal ampoule
-
 Penaeus vannamei
-

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
0.00001
-
 enzyme from hemocytes, using L-Arg-L-Arg-7-amido-4-methylcoumarin as substrate, at pH 5.5 and 30°C Penaeus vannamei
0.06329
-
 enzyme from intestine, using L-Arg-L-Arg-7-amido-4-methylcoumarin as substrate, at pH 5.5 and 30°C Penaeus vannamei
0.2
-
 enzyme from muscle, using L-Arg-L-Arg-7-amido-4-methylcoumarin as substrate, at pH 5.5 and 30°C Penaeus vannamei
0.2704
-
 enzyme from gastric juice, using L-Arg-L-Arg-7-amido-4-methylcoumarin as substrate, at pH 5.5 and 30°C Penaeus vannamei
0.6669
-
 enzyme from midgut gland, using L-Arg-L-Arg-7-amido-4-methylcoumarin as substrate, at pH 5.5 and 30°C Penaeus vannamei

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
L-Arg-L-Arg-7-amido-4-methylcoumarin + H2O
-
 Penaeus vannamei L-Arg-L-Arg + 7-amino-4-methylcoumarin
-
 ?

Subunits

Subunits Comment Organism
? x * 26900, calculated from amino acid sequence Penaeus vannamei

Synonyms

Synonyms Comment Organism
CathB
-
 Penaeus vannamei

pI Value

Organism Comment pI Value Maximum pI Value
Penaeus vannamei calculated from amino acid sequence
-
 6.1

Expression

Organism Comment Expression
Penaeus vannamei cathepsin B mRNA expression is induced about 120 h after starvation up