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Literature summary for 3.2.2.22 extracted from

  • Lam, S.S.L.; Wang, H.; Ng, T.B.
    Purification and characterization of novel ribosome inactivating proteins, alpha- and beta-pisavins, from seeds of the garden pea Pisum sativum (1998), Biochem. Biophys. Res. Commun., 253, 135-142.
    View publication on PubMed

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
18700
-
beta-pisavin, gel filtration Pisum sativum
20500
-
alpha-pisavin, gel filtration Pisum sativum

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
rRNA + H2O Pisum sativum
-
?
-
?

Organism

Organism UniProt Comment Textmining
Pisum sativum
-
garden pea, var. arvense Poir
-

Purification (Commentary)

Purification (Comment) Organism
-
Pisum sativum

Source Tissue

Source Tissue Comment Organism Textmining
seed
-
Pisum sativum
-

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
additional information
-
specific activity 10000 U/mg, 1 unit is the concentration of protein in mg/ml inhibiting protein synthesis by 50% Pisum sativum

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
additional information activity toward tRNA Pisum sativum ?
-
?
rRNA + H2O
-
Pisum sativum ?
-
?
supercoiled double-stranded DNA + H2O
-
Pisum sativum nicked and linear forms of DNA
-
?

Synonyms

Synonyms Comment Organism
alpha-pisavin
-
Pisum sativum
beta-pisavin
-
Pisum sativum

pI Value

Organism Comment pI Value Maximum pI Value
Pisum sativum isoelectric focusing, pI similar to trichosanthin significantly higher than 9.3, out of the range of pI standards
-
9.3