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Literature summary for 3.1.1.4 extracted from

  • Cottrell, R.C.
    Phospholipase A2 from bee venom (1981), Methods Enzymol., 71, 698-702.
    View publication on PubMed

Activating Compound

Activating Compound Comment Organism Structure
Acylating agents example: fatty acid imidazolides Apis mellifera
EDTA in small quantities activating: one-tenth the Ca2+-concentration Apis mellifera

Inhibitors

Inhibitors Comment Organism Structure
EDTA
-
Apis mellifera
Maleic anhydride
-
Apis mellifera

Metals/Ions

Metals/Ions Comment Organism Structure
Ba2+ can replace Ca2+ but enzyme shows decreased activity Apis mellifera
Ca2+
-
Apis mellifera
Mg2+ can replace Ca2+, decreased activity Apis mellifera
Sr2+ can replace Ca2+, decreased activity Apis mellifera

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
1,2-diacyl-sn-glycero-3-phosphatide + H2O Apis mellifera
-
?
-
?
phospholipids + H2O Apis mellifera allergenic ?
-
?

Organism

Organism UniProt Comment Textmining
Apis mellifera
-
-
-

Purification (Commentary)

Purification (Comment) Organism
dialysis, column chromatography Apis mellifera

Source Tissue

Source Tissue Comment Organism Textmining
venom
-
Apis mellifera
-

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
1,2-diacyl-sn-glycero-3-phosphatide + H2O
-
Apis mellifera 1-acyl-sn-glycero-3-phosphatide + fatty acid
-
?
1,2-diacyl-sn-glycero-3-phosphatide + H2O
-
Apis mellifera ?
-
?
1,2-dihexanoyl-sn-glycero-3-phosphocholine + H2O
-
Apis mellifera 1-hexanoyl-sn-glycero-3-phosphocholine + hexanoate
-
?
1,2-dilauroyl-sn-glycero-3-phosphocholine + H2O
-
Apis mellifera 1-lauroyl-sn-glycero-3-phosphocholine + laureate
-
?
1,2-dimyristoyl-sn-phosphatidylcholine + H2O
-
Apis mellifera 1-myristoyl-phosphorylcholine + myristic acid
-
?
1,2-dipalmitoyl-phosphatidylcholine + H2O
-
Apis mellifera 1-palmitoyl-glycerophosphorylcholine + palmitic acid
-
?
1-oleoyl-2-isolauroyl phosphatidylethanolamine + H2O
-
Apis mellifera 1-oleoyl phosphatidylethanolamine + isolauric acid
-
?
phosphatidylcholine + H2O
-
Apis mellifera 1-acylglycerophosphocholine + fatty acid
-
?
phosphatidylglycerol + H2O
-
Apis mellifera 1-acylglycerol + fatty acid
-
?
phospholipids + H2O allergenic Apis mellifera ?
-
?

Subunits

Subunits Comment Organism
dimer dimerization occurs in concentrated aqueous solution, no data concerning MW Apis mellifera

Temperature Stability [°C]

Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
20
-
lyophilized venom PLA2, extremely stable Apis mellifera

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
8
-
substrate: 1,2-dihexanoyl-sn-glycero-3-phosphocholine, in 75% propanol and 25% water Apis mellifera