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Literature summary extracted from

  • Ozaki, M.; Fujinami, K.; Tanaka, K.; Amemiya, Y.; Sato, T.; Ogura, N.; Nakagawa, H.
    Purification and initial characterization of the proteasome from the higher plant Spinacia oleracea (1992), J. Biol. Chem., 267, 21678-21684.
    View publication on PubMed

Activating Compound

EC Number Activating Compound Comment Organism Structure
3.4.25.1 poly-L-lysine stimulates chymotrypsin-, trypsin- and Staphylococcus aureus V8-like activities Spinacia oleracea
3.4.25.1 SDS stimulates chymotrypsin-like activity and Staphylococcus aureus V8 like activity Spinacia oleracea

Inhibitors

EC Number Inhibitors Comment Organism Structure
3.4.25.1 chymostatin inhibits chymotrypsin-like activity Spinacia oleracea
3.4.25.1 leupeptin inhibits trypsin-like activity Spinacia oleracea
3.4.25.1 N-ethylmaleimide
-
Spinacia oleracea
3.4.25.1 phenylmethylsulfonyl fluoride inhibits trypsin-like activity Spinacia oleracea
3.4.25.1 SDS inhibits trypsin-like activity Spinacia oleracea

Molecular Weight [Da]

EC Number Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
3.4.25.1 850000
-
gel filtration Spinacia oleracea

Organism

EC Number Organism UniProt Comment Textmining
3.4.25.1 Spinacia oleracea
-
spinach
-

Purification (Commentary)

EC Number Purification (Comment) Organism
3.4.25.1
-
Spinacia oleracea

Reaction

EC Number Reaction Comment Organism Reaction ID
3.4.25.1 cleavage of peptide bonds with very broad specificity Staphylococcus aureus V8 protease like activity Spinacia oleracea

Source Tissue

EC Number Source Tissue Comment Organism Textmining
3.4.25.1 leaf
-
Spinacia oleracea
-

Specific Activity [micromol/min/mg]

EC Number Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
3.4.25.1 0.022
-
-
Spinacia oleracea

Substrates and Products (Substrate)

EC Number Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
3.4.25.1 succinyl-Leu-Leu-Val-Tyr-7-amido-4-methylcoumarin + H2O
-
Spinacia oleracea ?
-
?

Subunits

EC Number Subunits Comment Organism
3.4.25.1 More multiple subunits from 21000-32000, SDS-PAGE Spinacia oleracea

pH Optimum

EC Number pH Optimum Minimum pH Optimum Maximum Comment Organism
3.4.25.1 8.5
-
chymotrypsin-like activity Spinacia oleracea
3.4.25.1 9
-
Staphylococcus aureus V8 like activity Spinacia oleracea