5TWE
 
 | | CTX-M-14 P167S:S70G mutant enzyme crystallized with ceftazidime | | Descriptor: | ACYLATED CEFTAZIDIME, Beta-lactamase | | Authors: | Patel, M, Stojanoski, V, Sankaran, B, Prasad, B.V.V, Palzkill, T. | | Deposit date: | 2016-11-12 | | Release date: | 2017-06-28 | | Last modified: | 2023-10-04 | | Method: | X-RAY DIFFRACTION (1.5 Å) | | Cite: | The Drug-Resistant Variant P167S Expands the Substrate Profile of CTX-M beta-Lactamases for Oxyimino-Cephalosporin Antibiotics by Enlarging the Active Site upon Acylation.
Biochemistry, 56, 2017
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6V6P
 | | Crystal structure of CTX-M-14 E166A/D240G beta-lactamase | | Descriptor: | Beta-lactamase, DI(HYDROXYETHYL)ETHER, SULFATE ION | | Authors: | Brown, C.A, Hu, L, Sankaran, B, Prasad, B.V.V, Palzkill, T.G. | | Deposit date: | 2019-12-05 | | Release date: | 2020-04-22 | | Last modified: | 2023-10-11 | | Method: | X-RAY DIFFRACTION (1.55 Å) | | Cite: | Antagonism between substitutions in beta-lactamase explains a path not taken in the evolution of bacterial drug resistance.
J.Biol.Chem., 295, 2020
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6CYN
 | | CTX-M-14 N106S/D240G mutant | | Descriptor: | Beta-lactamase | | Authors: | Patel, M.P, Hu, L, Sankaran, B, Brown, C, Prasad, B.V.V, Palzkill, T. | | Deposit date: | 2018-04-06 | | Release date: | 2018-10-10 | | Last modified: | 2023-10-04 | | Method: | X-RAY DIFFRACTION (1.6 Å) | | Cite: | Synergistic effects of functionally distinct substitutions in beta-lactamase variants shed light on the evolution of bacterial drug resistance.
J. Biol. Chem., 293, 2018
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8DOD
 | | Beta-lactamase CTX-M-14 S130A | | Descriptor: | Beta-lactamase, POTASSIUM ION | | Authors: | Lu, S, Palzkill, T. | | Deposit date: | 2022-07-12 | | Release date: | 2023-04-05 | | Last modified: | 2023-10-25 | | Method: | X-RAY DIFFRACTION (1.61 Å) | | Cite: | Mutagenesis and structural analysis reveal the CTX-M beta-lactamase active site is optimized for cephalosporin catalysis and drug resistance.
J.Biol.Chem., 299, 2023
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7K2Y
 | | Crystal structure of CTX-M-14 E166A/K234R Beta-lactamase in complex with hydrolyzed ampicillin | | Descriptor: | (2R,4S)-2-[(1R)-1-{[(2R)-2-amino-2-phenylacetyl]amino}-2-oxoethyl]-5,5-dimethyl-1,3-thiazolidine-4-carboxylic acid, Beta-lactamase | | Authors: | Lu, S, Palzkill, T, Sankaran, B, Hu, L, Soeung, V, Prasad, B.V.V. | | Deposit date: | 2020-09-09 | | Release date: | 2020-11-04 | | Last modified: | 2023-10-18 | | Method: | X-RAY DIFFRACTION (1.62 Å) | | Cite: | A drug-resistant beta-lactamase variant changes the conformation of its active-site proton shuttle to alter substrate specificity and inhibitor potency.
J.Biol.Chem., 295, 2020
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8DPQ
 | | Beta-lactamase CTX-M-14 N170A | | Descriptor: | 1,2-ETHANEDIOL, Beta-lactamase | | Authors: | Lu, S, Neetu, N, Palzkill, T. | | Deposit date: | 2022-07-15 | | Release date: | 2023-04-05 | | Last modified: | 2023-10-25 | | Method: | X-RAY DIFFRACTION (1.67 Å) | | Cite: | Mutagenesis and structural analysis reveal the CTX-M beta-lactamase active site is optimized for cephalosporin catalysis and drug resistance.
J.Biol.Chem., 299, 2023
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6CYQ
 | | Crystal structure of CTX-M-14 S70G/N106S beta-lactamase in complex with hydrolyzed cefotaxime | | Descriptor: | (2R)-2-[(R)-{[(2Z)-2-(2-amino-1,3-thiazol-4-yl)-2-(methoxyimino)acetyl]amino}(carboxy)methyl]-5-methylidene-5,6-dihydro -2H-1,3-thiazine-4-carboxylic acid, Beta-lactamase, GLYCEROL | | Authors: | Patel, M.P, Hu, L, Sankaran, B, Brown, C, Prasad, B.V.V, Palzkill, T. | | Deposit date: | 2018-04-06 | | Release date: | 2018-10-10 | | Last modified: | 2023-10-04 | | Method: | X-RAY DIFFRACTION (1.698 Å) | | Cite: | Synergistic effects of functionally distinct substitutions in beta-lactamase variants shed light on the evolution of bacterial drug resistance.
J. Biol. Chem., 293, 2018
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5TW6
 | | CTX-M-14 P167S:E166A mutant with acylated ceftazidime molecule | | Descriptor: | 1,2-ETHANEDIOL, ACYLATED CEFTAZIDIME, Beta-lactamase | | Authors: | Patel, M, Stojanoski, V, Sankaran, B, Prasad, B.V.V, Palzkill, T. | | Deposit date: | 2016-11-11 | | Release date: | 2017-06-28 | | Last modified: | 2023-10-04 | | Method: | X-RAY DIFFRACTION (1.7 Å) | | Cite: | The Drug-Resistant Variant P167S Expands the Substrate Profile of CTX-M beta-Lactamases for Oxyimino-Cephalosporin Antibiotics by Enlarging the Active Site upon Acylation.
Biochemistry, 56, 2017
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5TWD
 | | CTX-M-14 P167S apoenzyme | | Descriptor: | Beta-lactamase | | Authors: | Patel, M, Stojanoski, V, Sankaran, B, Prasad, B.V.V, Palzkill, T. | | Deposit date: | 2016-11-12 | | Release date: | 2017-06-28 | | Last modified: | 2023-10-04 | | Method: | X-RAY DIFFRACTION (1.7 Å) | | Cite: | The Drug-Resistant Variant P167S Expands the Substrate Profile of CTX-M beta-Lactamases for Oxyimino-Cephalosporin Antibiotics by Enlarging the Active Site upon Acylation.
Biochemistry, 56, 2017
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6CYK
 | | CTX-M-14 N106S mutant | | Descriptor: | ACETATE ION, Beta-lactamase | | Authors: | Patel, M.P, Hu, L, Sankaran, B, Brown, C, Prasad, B.V.V, Palzkill, T. | | Deposit date: | 2018-04-06 | | Release date: | 2018-10-10 | | Last modified: | 2023-10-04 | | Method: | X-RAY DIFFRACTION (1.7 Å) | | Cite: | Synergistic effects of functionally distinct substitutions in beta-lactamase variants shed light on the evolution of bacterial drug resistance.
J. Biol. Chem., 293, 2018
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6V8V
 | | Crystal structure of CTX-M-14 E166A/P167S/D240G beta-lactamase in complex with ceftazidime-2 | | Descriptor: | ACYLATED CEFTAZIDIME, Beta-lactamase | | Authors: | Brown, C.A, Hu, L, Sankaran, B, Prasad, B.V.V, Palzkill, T.G. | | Deposit date: | 2019-12-12 | | Release date: | 2020-04-22 | | Last modified: | 2023-10-11 | | Method: | X-RAY DIFFRACTION (1.8 Å) | | Cite: | Antagonism between substitutions in beta-lactamase explains a path not taken in the evolution of bacterial drug resistance.
J.Biol.Chem., 295, 2020
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6V83
 | | Crystal structure of CTX-M-14 E166A/P167S/D240G beta-lactamase in complex with ceftazidime-1 | | Descriptor: | ACYLATED CEFTAZIDIME, Beta-lactamase | | Authors: | Brown, C.A, Hu, L, Sankaran, B, Prasad, B.V.V, Palzkill, T.G. | | Deposit date: | 2019-12-10 | | Release date: | 2020-04-22 | | Last modified: | 2023-10-11 | | Method: | X-RAY DIFFRACTION (1.8 Å) | | Cite: | Antagonism between substitutions in beta-lactamase explains a path not taken in the evolution of bacterial drug resistance.
J.Biol.Chem., 295, 2020
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7K2X
 | | Crystal structure of CTX-M-14 E166A/K234R Beta-lactamase | | Descriptor: | Beta-lactamase, GLYCEROL | | Authors: | Lu, S, Palzkill, T, Sankaran, B, Hu, L, Soeung, V, Prasad, B.V.V. | | Deposit date: | 2020-09-09 | | Release date: | 2020-11-04 | | Last modified: | 2023-10-18 | | Method: | X-RAY DIFFRACTION (1.8 Å) | | Cite: | A drug-resistant beta-lactamase variant changes the conformation of its active-site proton shuttle to alter substrate specificity and inhibitor potency.
J.Biol.Chem., 295, 2020
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6D7H
 | | CTX-M-14 Apoenzyme | | Descriptor: | Beta-lactamase, PHOSPHATE ION, POTASSIUM ION | | Authors: | Kemp, M, Nichols, D, Chen, Y. | | Deposit date: | 2018-04-24 | | Release date: | 2019-07-24 | | Last modified: | 2023-10-04 | | Method: | X-RAY DIFFRACTION (1.801 Å) | | Cite: | The Role of Asp-Asp Short Hydrogen Bond in Maintaining Active Site Integrity of CTX-M Beta-Lactamase
To be Published
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6CYU
 | | Crystal structure of CTX-M-14 S70G/N106S/D240G beta-lactamase in complex with hydrolyzed cefotaxime | | Descriptor: | (2R)-2-[(R)-{[(2Z)-2-(2-amino-1,3-thiazol-4-yl)-2-(methoxyimino)acetyl]amino}(carboxy)methyl]-5-methylidene-5,6-dihydro -2H-1,3-thiazine-4-carboxylic acid, Beta-lactamase | | Authors: | Patel, M.P, Hu, L, Sankaran, B, Brown, C, Prasad, B.V.V, Palzkill, T. | | Deposit date: | 2018-04-06 | | Release date: | 2018-10-10 | | Last modified: | 2023-10-04 | | Method: | X-RAY DIFFRACTION (1.82 Å) | | Cite: | Synergistic effects of functionally distinct substitutions in beta-lactamase variants shed light on the evolution of bacterial drug resistance.
J. Biol. Chem., 293, 2018
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7S0V
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6D7I
 | | CTX-M-14 Apoenzyme D233N Point Mutant | | Descriptor: | Beta-lactamase | | Authors: | Kemp, M, Nichols, D, Chen, Y. | | Deposit date: | 2018-04-24 | | Release date: | 2019-07-24 | | Last modified: | 2023-10-04 | | Method: | X-RAY DIFFRACTION (2.001 Å) | | Cite: | The Role of Asp-Asp Short Hydrogen Bond in Maintaining Active Site Integrity of CTX-M Beta-Lactamase
To be Published
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5VTH
 | | CTX-M-14 P167S:E166A mutant | | Descriptor: | Beta-lactamase | | Authors: | Hu, L, Patel, M, Sankaran, B, Prasad, B.V.V, Palzkill, T. | | Deposit date: | 2017-05-17 | | Release date: | 2017-06-28 | | Last modified: | 2023-10-04 | | Method: | X-RAY DIFFRACTION (2.2 Å) | | Cite: | The Drug-Resistant Variant P167S Expands the Substrate Profile of CTX-M beta-Lactamases for Oxyimino-Cephalosporin Antibiotics by Enlarging the Active Site upon Acylation.
Biochemistry, 56, 2017
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6V5E
 | | Crystal structure of CTX-M-14 P167S/D240G beta-lactamase | | Descriptor: | Beta-lactamase | | Authors: | Brown, C.A, Hu, L, Sankaran, B, Prasad, B.V.V, Palzkill, T.G. | | Deposit date: | 2019-12-04 | | Release date: | 2020-04-22 | | Last modified: | 2023-10-11 | | Method: | X-RAY DIFFRACTION (2.3 Å) | | Cite: | Antagonism between substitutions in beta-lactamase explains a path not taken in the evolution of bacterial drug resistance.
J.Biol.Chem., 295, 2020
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