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Literature summary for 1.4.3.2 extracted from

  • Han, X.; Huang, Y.; Hou, Y.; Dang, H.; Li, R.
    Recombinant expression and functional analysis of antimicrobial Siganus oramin L-amino acid oxidase using the Bac-to-Bac baculovirus expression system (2020), Fish Shellfish Immunol., 98, 962-970 .
    View publication on PubMed

Cloned(Commentary)

Cloned (Comment) Organism
expression in Sf9 cell, the recombinant baculovirus rSR-LAAO is abundantly expressed in infected Sf9 insect cells Siganus canaliculatus

Inhibitors

Inhibitors Comment Organism Structure
Pepsin 10 mg/ml, complete inhibition Siganus canaliculatus
proteinase K 10 mg/ml, complete inhibition Siganus canaliculatus
Trypsin 10 mg/ml, complete inhibition Siganus canaliculatus

Organic Solvent Stability

Organic Solvent Comment Organism
Acetone treatment reduces the relative bacteriostatic activity to 62.35% Siganus canaliculatus
Ethanol adding an equal volume of ethanol has a minimal impact on the antibacterial activity of crude recombinant LAAO Siganus canaliculatus
Methanol treatment reduces the relative bacteriostatic activity to 62.54% Siganus canaliculatus

Organism

Organism UniProt Comment Textmining
Siganus canaliculatus P86810
-
-

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
L-lysine + H2O + O2
-
Siganus canaliculatus 6-amino-2-oxohexanoate + NH3 + H2O2
-
?

Subunits

Subunits Comment Organism
? x * 60000, SDS-PAGE, x * 55948, calculated from sequence Siganus canaliculatus

Temperature Range [°C]

Temperature Minimum [°C] Temperature Maximum [°C] Comment Organism
4 30 crude enzyme can maintain a high level of antibacterial activity against both Gram-positive and -negative bacteria from 4°C to 30°C Siganus canaliculatus

pI Value

Organism Comment pI Value Maximum pI Value
Siganus canaliculatus calculated from sequence
-
5.9

General Information

General Information Comment Organism
additional information crude recombinant LAAO enzyme displays strong antibacterial activity against aquatic pathogens, particularly Streptococcus agalactiae and Streptococcus iniae. The antibacterial activity of recombinant LAAO is directly associated with H2O2 production, the crude enzyme can maintain a high level of antibacterial activity against both Gram-positive and -negative bacteria from 4°C to 30°C Siganus canaliculatus