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Literature summary for 1.1.1.159 extracted from

  • Yang, Q.; Li, L.; Wang, B.; Zhu, L.; Tan, J.
    Modifying the microenvironment of epoxy resin to improve the activity of immobilized 7alpha-hydroxysteroid dehydrogenases (2020), Appl. Biochem. Biotechnol., 193, 925-939 .
    View publication on PubMed

General Stability

General Stability Organism
the relative activity of immobilized enzyme on aminoepoxy resin increases by approximately 80%. After 6 cycles, the residual activities of the enzyme immobilized on the amino-epoxy resin and epoxy resin are 81.4% and 89.5%, respectively Clostridium sardiniense

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
taurochenodeoxycholic acid + NADP+ Clostridium sardiniense
-
tauro-7-ketolithocholic acid + NADPH + H+
-
?

Organism

Organism UniProt Comment Textmining
Clostridium sardiniense G9FRD7
-
-

Storage Stability

Storage Stability Organism
4°C, 50 mM Tris-HCl (pH 9.0), 2 weeks, 24.9% loss of activity, immobilized enzyme Clostridium sardiniense
4°C, 50 mM Tris-HCl (pH 9.0), 5 weeks, 60.3% loss of activity, immobilized enzyme Clostridium sardiniense

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
taurochenodeoxycholic acid + NADP+
-
Clostridium sardiniense tauro-7-ketolithocholic acid + NADPH + H+
-
?

Synonyms

Synonyms Comment Organism
7alpha-HSDH
-
Clostridium sardiniense
nicotinamide adenine dinucleotide phosphate-dependent 7alpha-hydroxysteroid dehydrogenase
-
Clostridium sardiniense

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
25
-
-
Clostridium sardiniense

Temperature Stability [°C]

Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
15 65 the relative activity of the free enzyme drastically decreases at temperatures over 35°C, with minimal activity observed at 45°C. In contrast, the immobilized preparations are relatively stable at temperatures ranging from 15 to 35°C, with the relative activities of enzyme immobilized on the amino-epoxy resin and epoxy resin at 56.4% and 61.0%, respectively, after 2 h at 65°C Clostridium sardiniense

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
9
-
-
Clostridium sardiniense

pH Stability

pH Stability pH Stability Maximum Comment Organism
9
-
the optimum conditions for the immobilization of the enzyme on both amino-epoxy resin and epoxy resin are pH 9.0 and 20°C for 2 h Clostridium sardiniense

Cofactor

Cofactor Comment Organism Structure
NADP+
-
Clostridium sardiniense

pI Value

Organism Comment pI Value Maximum pI Value
Clostridium sardiniense isoelectric focusing
-
5.7