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Literature summary extracted from

  • Wang, Y.; Yu, H.; Zhang, J.; Luo, H.; Shen, Z.
    Double knockout of beta-lactamase and cephalosporin acetyl esterase genes from Escherichia coli reduces cephalosporin C decomposition (2012), J. Biosci. Bioeng., 113, 737-741.
    View publication on PubMed

Protein Variants

EC Number Protein Variants Comment Organism
3.1.1.41 additional information construction of beta-lactamase (AmpC) and cephalosporin acetyl esterase (Aes) single or double knockout mutant strains from Escherichia coli strains JM105 and JM109(DE3), the chromosomal genes ampC and aes are disrupted by the phage lambda red recombinase system, which involves three stepswith three helper plasmids pKD13, pKD46 and pCP20, single or double knockout of ampC and aes from Escherichia coli JM105 have minimal effects on formal growth of the recombinant cells. Recombinant expression of Pseudomonas sp. strain SE83 cephalosporin C acylase II (sCPCAcy), EC 3.5.1.93, from vector pMKC-sCPCacy restores the cephalosporin C decomposition activity to an even higher level compared to wild-type, overview. CPC acylase II catalyzes a one-step enzymatic conversion of cephalosporin C into 7-aminocephalosporanic acid Escherichia coli

Natural Substrates/ Products (Substrates)

EC Number Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
3.1.1.41 cephalosporin C + H2O Escherichia coli
-
deacetylcephalosporin C + acetate
-
?
3.1.1.41 cephalosporin C + H2O Escherichia coli JM105
-
deacetylcephalosporin C + acetate
-
?

Organism

EC Number Organism UniProt Comment Textmining
3.1.1.41 Escherichia coli
-
gene aes
-
3.1.1.41 Escherichia coli JM105
-
gene aes
-

Substrates and Products (Substrate)

EC Number Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
3.1.1.41 cephalosporin C + H2O
-
Escherichia coli deacetylcephalosporin C + acetate
-
?
3.1.1.41 cephalosporin C + H2O
-
Escherichia coli JM105 deacetylcephalosporin C + acetate
-
?

Synonyms

EC Number Synonyms Comment Organism
3.1.1.41 Aes
-
Escherichia coli