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Literature summary for 3.1.1.3 extracted from

  • Chen, C.K.; Lee, G.C.; Ko, T.P.; Guo, R.T.; Huang, L.M.; Liu, H.J.; Ho, Y.F.; Shaw, J.F.; Wang, A.H.
    Structure of the alkalohyperthermophilic Archaeoglobus fulgidus lipase contains a unique C-terminal domain essential for long-chain substrate binding (2009), J. Mol. Biol., 390, 672-685.
    View publication on PubMed
Search for more literature for 3.1.1.3

Crystallization (Commentary)

Crystallization (Comment) Organism
hanging drop method, crystallographic analysis of wild-type and S136A mutant enzyme, 1.8 A resolution data Archaeoglobus fulgidus

Protein Variants

Protein Variants Comment Organism
additional information deletion of the C-terminal domain reduces the optimal temperature from 90 to 80°C. The lack of the C-terminal domain also causes the protein to be less thermostable. However, the deletion also changes the optimal pH and pH stability of the recombinant enzyme. It reduces the optimal pH from 10.0 to 9.0 and causes the protein to be less pH stable. Without the C-terminal domain, the enzyme loses its function to hydrolyze long-chain ester substrates Archaeoglobus fulgidus

Organism

Organism UniProt Comment Textmining
Archaeoglobus fulgidus O28511
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-

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
4-nitrophenyl octanoate + H2O
-
 Archaeoglobus fulgidus 4-nitrophenol + octanoate
-
 ?
4-nitrophenyl palmitate + H2O
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 Archaeoglobus fulgidus 4-nitrophenol + palmitate
-
 ?
tricaprylin + 3 H2O the apparent rate of hydrolysis correlates with the degree of micellar formation. Consistent with observations from other lipases, the lid conformation may change from the closed to the open form in the presence of lipid interface. Together with the evidence of the lid structure in in this enzyme, it is classified as a lipase rather than as a carboxylesterase Archaeoglobus fulgidus 3 octanoate + glycerol
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 ?

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
60
-
 assay at Archaeoglobus fulgidus
90
-
-
 Archaeoglobus fulgidus

Temperature Range [°C]

Temperature Minimum [°C] Temperature Maximum [°C] Comment Organism
30 90 30°C: about 50% of maximal activity, 90°C: optimum, recombinant enzyme Archaeoglobus fulgidus

Temperature Stability [°C]

Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
80
-
 30 min, about 5% loss of activity Archaeoglobus fulgidus
90
-
 30 min, about 95% loss of activity Archaeoglobus fulgidus

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
8.5
-
 assay at Archaeoglobus fulgidus
10
-
 at 60°C Archaeoglobus fulgidus

pH Range

pH Minimum pH Maximum Comment Organism
5 11 pH 5.0: about 55% of maximal activity, pH 11.0: about 85% of maximal activity Archaeoglobus fulgidus

pH Stability

pH Stability pH Stability Maximum Comment Organism
5
-
 60°C, activity after incubation for 2 h at pH 5.0 is about 20% lower compared to activity at pH 10.0 Archaeoglobus fulgidus
10
-
 60°C, 2 h, pH of highest stability Archaeoglobus fulgidus
11
-
 60°C, activity after incubation for 2 h at pH 5.0 is about 30% lower compared to activity at pH 10.0 Archaeoglobus fulgidus