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Literature summary for 3.5.2.6 extracted from

  • Tajima, M.; Takenouchi, Y.; Sugawara, S.; Inoue, M.; Mitsuhashi, S.
    Purification and properties of chromosomally mediated beta-lactamase from Citrobacter freundii GN7391 (1980), J. Gen. Microbiol., 121, 449-456.
    View publication on PubMed

Inhibitors

Inhibitors Comment Organism Structure
Cloxacillin
-
Citrobacter freundii
I2
-
Citrobacter freundii

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.009
-
cephalothin
-
Citrobacter freundii
0.01
-
cephalexin
-
Citrobacter freundii
0.015
-
cephradine
-
Citrobacter freundii
0.072
-
cephaloridine
-
Citrobacter freundii
0.254
-
cefazolin
-
Citrobacter freundii

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
38000
-
SDS-PAGE Citrobacter freundii

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
cefazolin + H2O Citrobacter freundii
-
(2R)-2-[(R)-carboxy[(1H-tetrazol-1-ylacetyl)amino]methyl]-5-[[(5-methyl-1,3,4-thiadiazol-2-yl)sulfanyl]methyl]-3,6-dihydro-2H-1,3-thiazine-4-carboxylic acid
-
?
cephaloridine + H2O Citrobacter freundii
-
(2R)-2-[(R)-carboxy[(thiophen-2-ylacetyl)amino]methyl]-5-(pyridinium-1-ylmethyl)-3,6-dihydro-2H-1,3-thiazine-4-carboxylate
-
?
cephaloridine + H2O Citrobacter freundii GN7391
-
(2R)-2-[(R)-carboxy[(thiophen-2-ylacetyl)amino]methyl]-5-(pyridinium-1-ylmethyl)-3,6-dihydro-2H-1,3-thiazine-4-carboxylate
-
?

Organism

Organism UniProt Comment Textmining
Citrobacter freundii
-
-
-
Citrobacter freundii GN7391
-
-
-

Purification (Commentary)

Purification (Comment) Organism
-
Citrobacter freundii

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
388
-
-
Citrobacter freundii

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
ampicillin + H2O
-
Citrobacter freundii (2R,4S)-2-[(R)-[[(2R)-2-amino-2-phenylacetyl]amino](carboxy)methyl]-5,5-dimethyl-1,3-thiazolidine-4-carboxylic acid
-
?
ampicillin + H2O
-
Citrobacter freundii GN7391 (2R,4S)-2-[(R)-[[(2R)-2-amino-2-phenylacetyl]amino](carboxy)methyl]-5,5-dimethyl-1,3-thiazolidine-4-carboxylic acid
-
?
carbenicillin + H2O
-
Citrobacter freundii (2R,4S)-2-{(R)-carboxy[2-carboxy(phenyl)acetamido]methyl}-5,5-dimethyl-1,3-thiazolidine-4-carboxylic acid
-
?
carbenicillin + H2O
-
Citrobacter freundii GN7391 (2R,4S)-2-{(R)-carboxy[2-carboxy(phenyl)acetamido]methyl}-5,5-dimethyl-1,3-thiazolidine-4-carboxylic acid
-
?
cefazolin + H2O
-
Citrobacter freundii (2R)-2-[(R)-carboxy[(1H-tetrazol-1-ylacetyl)amino]methyl]-5-[[(5-methyl-1,3,4-thiadiazol-2-yl)sulfanyl]methyl]-3,6-dihydro-2H-1,3-thiazine-4-carboxylic acid
-
?
cephalexin + H2O
-
Citrobacter freundii (2R)-2-[(R)-[[(2R)-2-amino-2-phenylacetyl]amino](carboxy)methyl]-5-methyl-3,6-dihydro-2H-1,3-thiazine-4-carboxylic acid
-
?
cephalexin + H2O
-
Citrobacter freundii GN7391 (2R)-2-[(R)-[[(2R)-2-amino-2-phenylacetyl]amino](carboxy)methyl]-5-methyl-3,6-dihydro-2H-1,3-thiazine-4-carboxylic acid
-
?
cephaloridine + H2O
-
Citrobacter freundii (2R)-2-[(R)-carboxy[(thiophen-2-ylacetyl)amino]methyl]-5-(pyridinium-1-ylmethyl)-3,6-dihydro-2H-1,3-thiazine-4-carboxylate
-
?
cephaloridine + H2O
-
Citrobacter freundii GN7391 (2R)-2-[(R)-carboxy[(thiophen-2-ylacetyl)amino]methyl]-5-(pyridinium-1-ylmethyl)-3,6-dihydro-2H-1,3-thiazine-4-carboxylate
-
?
cephalothin + H2O
-
Citrobacter freundii (2R)-5-[(acetyloxy)methyl]-2-[(R)-carboxy[(thiophen-2-ylacetyl)amino]methyl]-3,6-dihydro-2H-1,3-thiazine-4-carboxylic acid
-
?
cephalothin + H2O
-
Citrobacter freundii GN7391 (2R)-5-[(acetyloxy)methyl]-2-[(R)-carboxy[(thiophen-2-ylacetyl)amino]methyl]-3,6-dihydro-2H-1,3-thiazine-4-carboxylic acid
-
?
cephradine + H2O
-
Citrobacter freundii (2R)-2-[(R)-{[(2R)-2-amino-2-(cyclohexa-1,4-dien-1-yl)acetyl]amino}(carboxy)methyl]-5-methyl-3,6-dihydro-2H-1,3-thiazine-4-carboxylic acid
-
?
penicillin G + H2O
-
Citrobacter freundii (2R,4S)-2-[(R)-carboxy[(phenylacetyl)amino]methyl]-5,5-dimethyl-1,3-thiazolidine-4-carboxylic acid
-
?

Subunits

Subunits Comment Organism
monomer 1* 38000 Citrobacter freundii

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
45
-
-
Citrobacter freundii

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
8
-
-
Citrobacter freundii