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Literature summary for 3.5.2.6 extracted from

  • Thatcher, D.R.
    beta-Lactamase (Bacillus cereus) (1975), Methods Enzymol., 43, 640-652.
    View publication on PubMed

Inhibitors

Inhibitors Comment Organism Structure
1,10-phenanthroline
-
Bacillus cereus
EDTA
-
Bacillus cereus

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.06
-
benzylpenicillin
-
Bacillus cereus
1.1
-
cephalosporin C beta-lactamse II Bacillus cereus
3.3
-
benzylpenicillin beta-lactamse II Bacillus cereus

Localization

Localization Comment Organism GeneOntology No. Textmining
extracellular
-
Bacillus cereus
-
-

Metals/Ions

Metals/Ions Comment Organism Structure
Zn2+ beta-lactamase II Bacillus cereus

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
22500
-
beta-lactamase II, ultracentrifugation Bacillus cereus

Organism

Organism UniProt Comment Textmining
Bacillus cereus
-
-
-
Bacillus cereus 5/B
-
-
-
Bacillus cereus 569/H/9
-
-
-

Purification (Commentary)

Purification (Comment) Organism
-
Bacillus cereus

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
5617
-
-
Bacillus cereus

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
6-aminopenicillanic acid + H2O
-
Bacillus cereus (2R,4S)-2-[amino(carboxy)methyl]-5,5-dimethyl-1,3-thiazolidine-4-carboxylic acid
-
?
ampicillin + H2O
-
Bacillus cereus (2R,4S)-2-[(R)-[[(2R)-2-amino-2-phenylacetyl]amino](carboxy)methyl]-5,5-dimethyl-1,3-thiazolidine-4-carboxylic acid
-
?
ampicillin + H2O
-
Bacillus cereus 569/H/9 (2R,4S)-2-[(R)-[[(2R)-2-amino-2-phenylacetyl]amino](carboxy)methyl]-5,5-dimethyl-1,3-thiazolidine-4-carboxylic acid
-
?
ampicillin + H2O
-
Bacillus cereus 5/B (2R,4S)-2-[(R)-[[(2R)-2-amino-2-phenylacetyl]amino](carboxy)methyl]-5,5-dimethyl-1,3-thiazolidine-4-carboxylic acid
-
?
benzylpenicillin + H2O
-
Bacillus cereus (2R,4S)-2-[(R)-carboxy(2-phenylacetamido)methyl]-5,5-dimethyl-1,3-thiazolidine-4-carboxylic acid
-
?
benzylpenicillin + H2O
-
Bacillus cereus 569/H/9 (2R,4S)-2-[(R)-carboxy(2-phenylacetamido)methyl]-5,5-dimethyl-1,3-thiazolidine-4-carboxylic acid
-
?
benzylpenicillin + H2O
-
Bacillus cereus 5/B (2R,4S)-2-[(R)-carboxy(2-phenylacetamido)methyl]-5,5-dimethyl-1,3-thiazolidine-4-carboxylic acid
-
?
cephaloridine + H2O poor substrate, beta-lactamase I Bacillus cereus (2R)-2-[(R)-carboxy[(thiophen-2-ylacetyl)amino]methyl]-5-(pyridinium-1-ylmethyl)-3,6-dihydro-2H-1,3-thiazine-4-carboxylate
-
?
cephaloridine + H2O poor substrate, beta-lactamase I Bacillus cereus 569/H/9 (2R)-2-[(R)-carboxy[(thiophen-2-ylacetyl)amino]methyl]-5-(pyridinium-1-ylmethyl)-3,6-dihydro-2H-1,3-thiazine-4-carboxylate
-
?
cephaloridine + H2O poor substrate, beta-lactamase I Bacillus cereus 5/B (2R)-2-[(R)-carboxy[(thiophen-2-ylacetyl)amino]methyl]-5-(pyridinium-1-ylmethyl)-3,6-dihydro-2H-1,3-thiazine-4-carboxylate
-
?
cephalosporin C + H2O poor substrate, beta-lactamse I Bacillus cereus N6-[(R)-{(2R)-5-[(acetyloxy)methyl]-4-carboxy-3,6-dihydro-2H-1,3-thiazin-2-yl}(carboxy)methyl]-6-oxo-D-lysine
-
?
cephalosporin C + H2O poor substrate, beta-lactamse I Bacillus cereus 569/H/9 N6-[(R)-{(2R)-5-[(acetyloxy)methyl]-4-carboxy-3,6-dihydro-2H-1,3-thiazin-2-yl}(carboxy)methyl]-6-oxo-D-lysine
-
?
cephalosporin C + H2O poor substrate, beta-lactamse I Bacillus cereus 5/B N6-[(R)-{(2R)-5-[(acetyloxy)methyl]-4-carboxy-3,6-dihydro-2H-1,3-thiazin-2-yl}(carboxy)methyl]-6-oxo-D-lysine
-
?
methicillin + H2O
-
Bacillus cereus (2R,4S)-2-[(R)-carboxy(2,6-dimethoxybenzamido)methyl]-5,5-dimethyl-1,3-thiazolidine-4-carboxylic acid
-
?
methicillin + H2O
-
Bacillus cereus 569/H/9 (2R,4S)-2-[(R)-carboxy(2,6-dimethoxybenzamido)methyl]-5,5-dimethyl-1,3-thiazolidine-4-carboxylic acid
-
?
methicillin + H2O
-
Bacillus cereus 5/B (2R,4S)-2-[(R)-carboxy(2,6-dimethoxybenzamido)methyl]-5,5-dimethyl-1,3-thiazolidine-4-carboxylic acid
-
?

Synonyms

Synonyms Comment Organism
beta-lactamase I-III
-
Bacillus cereus

Temperature Stability [°C]

Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
50
-
denaturation after 10 min Bacillus cereus
60
-
total loss of activity after 10 min, beta-lactamase I Bacillus cereus

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
6 7 beta-lactamase II Bacillus cereus

pH Range

pH Minimum pH Maximum Comment Organism
5 9
-
Bacillus cereus

pH Stability

pH Stability pH Stability Maximum Comment Organism
5 9
-
Bacillus cereus