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Literature summary for 3.1.1.4 extracted from

  • Perumal Samy, R.; Gopalakrishnakone, P.; Bow, H.; Puspharaj, P.N.; Chow, V.T.
    Identification and characterization of a phospholipase A2 from the venom of the Saw-scaled viper: Novel bactericidal and membrane damaging activities (2010), Biochimie, 92, 1854-1866.
    View publication on PubMed

Application

Application Comment Organism
medicine the purified enzyme shows strong bactericidal activity against Burkholderia pseudomallei (minimum inhibitory concentration above 0.015 mg/ml) and Enterobacter aerogenes (minimum inhibitory concentration above 0.03 mg/ml) Echis carinatus

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
13862
-
x * 13862, MALDI-TOF mass spectrometry Echis carinatus
15000
-
x * 15000, SDS-PAGE Echis carinatus

Organism

Organism UniProt Comment Textmining
Echis carinatus
-
saw-scaled viper
-

Purification (Commentary)

Purification (Comment) Organism
C8 Sepharose column chromatography, C18 Sepharose column chromatography, and Superdex G-75 gel filtration Echis carinatus

Source Tissue

Source Tissue Comment Organism Textmining
venom
-
Echis carinatus
-

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
1034
-
crude venom, pH and temperature not specified in the publication Echis carinatus
2312
-
purified enzyme, pH and temperature not specified in the publication Echis carinatus

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
phosphatidylcholine + H2O
-
Echis carinatus 1-acylglycerophosphocholine + fatty acid
-
?

Subunits

Subunits Comment Organism
? x * 15000, SDS-PAGE Echis carinatus
? x * 13862, MALDI-TOF mass spectrometry Echis carinatus

Synonyms

Synonyms Comment Organism
PLA2
-
Echis carinatus
toxin I
-
Echis carinatus
Tx-1
-
Echis carinatus

General Information

General Information Comment Organism
physiological function the phospholipase A2 toxin I displays a heparin binding C-terminal region, which is probably responsible for the cytotoxic and bactericidal effects. Toxin I is able to induce cytotoxicity on THP-1 cells in vitro as well as lethality in BALB/c mice. Toxin II also induces mild myotoxic effects on mouse skin, but is devoid of hemolytic effects on human erythrocytes up to 0.5 mg/ml Echis carinatus