6C89
 
 | | NDM-1 Beta-Lactamase Exhibits Differential Active Site Sequence Requirements for the Hydrolysis of Penicillin versus Carbapenem Antibiotics | | Descriptor: | 1,2-ETHANEDIOL, Beta-lactamase, CHLORIDE ION, ... | | Authors: | Palzkill, T, Sun, Z, Sankaran, B. | | Deposit date: | 2018-01-24 | | Release date: | 2018-12-12 | | Last modified: | 2023-10-04 | | Method: | X-RAY DIFFRACTION (1.75006151 Å) | | Cite: | Differential active site requirements for NDM-1 beta-lactamase hydrolysis of carbapenem versus penicillin and cephalosporin antibiotics.
Nat Commun, 9, 2018
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7KHY
 | | Crystal structure of OXA-163 K73A in complex with meropenem | | Descriptor: | (4R,5S)-3-{[(3S,5S)-5-(dimethylcarbamoyl)pyrrolidin-3-yl]sulfanyl}-5-[(2S,3R)-3-hydroxy-1-oxobutan-2-yl]-4-methyl-4,5-d ihydro-1H-pyrrole-2-carboxylic acid, (4S)-2-METHYL-2,4-PENTANEDIOL, Beta-lactamase, ... | | Authors: | Palzkill, T, Hu, L, Sankaran, B, Prasad, B.V.V. | | Deposit date: | 2020-10-22 | | Release date: | 2021-02-10 | | Last modified: | 2023-10-18 | | Method: | X-RAY DIFFRACTION (1.84 Å) | | Cite: | Mechanistic Basis of OXA-48-like beta-Lactamases' Hydrolysis of Carbapenems.
Acs Infect Dis., 7, 2021
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7KH9
 | | Crystal structure of OXA-48 K73A in complex with imipenem | | Descriptor: | (5R)-5-[(1S,2R)-1-formyl-2-hydroxypropyl]-3-[(2-{[(E)-iminomethyl]amino}ethyl)sulfanyl]-4,5-dihydro-1H-pyrrole-2-carbox ylic acid, Beta-lactamase, CHLORIDE ION | | Authors: | Palzkill, T, Hu, L, Sankaran, B, Prasad, B.V.V. | | Deposit date: | 2020-10-20 | | Release date: | 2021-02-10 | | Last modified: | 2023-10-18 | | Method: | X-RAY DIFFRACTION (2.29 Å) | | Cite: | Mechanistic Basis of OXA-48-like beta-Lactamases' Hydrolysis of Carbapenems.
Acs Infect Dis., 7, 2021
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7KHZ
 | | Crystal structure of OXA-163 K73A in complex with imipenem | | Descriptor: | (5R)-5-[(1S,2R)-1-formyl-2-hydroxypropyl]-3-[(2-{[(E)-iminomethyl]amino}ethyl)sulfanyl]-4,5-dihydro-1H-pyrrole-2-carbox ylic acid, Beta-lactamase, CHLORIDE ION, ... | | Authors: | Palzkill, T, Hu, L, Sankaran, B, Prasad, B.V.V. | | Deposit date: | 2020-10-22 | | Release date: | 2021-02-10 | | Last modified: | 2023-10-18 | | Method: | X-RAY DIFFRACTION (2.04 Å) | | Cite: | Mechanistic Basis of OXA-48-like beta-Lactamases' Hydrolysis of Carbapenems.
Acs Infect Dis., 7, 2021
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7KHQ
 | | Crystal structure of OXA-48 K73A in complex with meropenem | | Descriptor: | (4R,5S)-3-{[(3S,5S)-5-(dimethylcarbamoyl)pyrrolidin-3-yl]sulfanyl}-5-[(2S,3R)-3-hydroxy-1-oxobutan-2-yl]-4-methyl-4,5-d ihydro-1H-pyrrole-2-carboxylic acid, Beta-lactamase, CHLORIDE ION, ... | | Authors: | Palzkill, T, Hu, L, Sankaran, B, Prasad, B.V.V. | | Deposit date: | 2020-10-21 | | Release date: | 2021-02-10 | | Last modified: | 2023-10-18 | | Method: | X-RAY DIFFRACTION (2 Å) | | Cite: | Mechanistic Basis of OXA-48-like beta-Lactamases' Hydrolysis of Carbapenems.
Acs Infect Dis., 7, 2021
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4F6H
 | | Mutagenesis of zinc ligand residue Cys221 reveals plasticity in the IMP-1 metallo-b-lactamase active site | | Descriptor: | Beta-lactamase, PHOSPHATE ION, SULFATE ION, ... | | Authors: | Horton, L.B, Shanker, S, Sankaran, B, Mikulski, R, Brown, N.G, Phillips, K, Lykissa, E, Prasad, B.V.V, Palzkill, T.G. | | Deposit date: | 2012-05-14 | | Release date: | 2013-03-27 | | Last modified: | 2023-09-13 | | Method: | X-RAY DIFFRACTION (1.744 Å) | | Cite: | Mutagenesis of zinc ligand residue Cys221 reveals plasticity in the IMP-1 metallo-beta-lactamase active site
Antimicrob.Agents Chemother., 56, 2012
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5K4P
 | | Catalytic Domain of MCR-1 phosphoethanolamine transferase | | Descriptor: | Probable phosphatidylethanolamine transferase Mcr-1, ZINC ION, sorbitol | | Authors: | Stojanoski, V, Palzkill, T, Prasad, B.V.V, Sankaran, B. | | Deposit date: | 2016-05-21 | | Release date: | 2016-08-31 | | Last modified: | 2020-07-29 | | Method: | X-RAY DIFFRACTION (1.318 Å) | | Cite: | Structure of the catalytic domain of the colistin resistance enzyme MCR-1.
Bmc Biol., 14, 2016
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3JYI
 | | Structural and biochemical evidence that a TEM-1 {beta}-lactamase Asn170Gly active site mutant acts via substrate-assisted catalysis | | Descriptor: | 4-(2-HYDROXYETHYL)-1-PIPERAZINE ETHANESULFONIC ACID, Beta-lactamase TEM, PHOSPHATE ION | | Authors: | Brown, N.G, Palzkill, T.G, Prasad, B.V.V, Shanker, S. | | Deposit date: | 2009-09-21 | | Release date: | 2009-10-06 | | Last modified: | 2023-09-06 | | Method: | X-RAY DIFFRACTION (2.703 Å) | | Cite: | Structural and biochemical evidence that a TEM-1 beta-lactamase N170G active site mutant acts via substrate-assisted catalysis
J.Biol.Chem., 284, 2009
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7LTN
 | | Crystal structure of Mpro in complex with inhibitor CDD-1713 | | Descriptor: | 2-[4-(1~{H}-indazol-4-yl)-2-methanoyl-6-methoxy-phenoxy]-~{N},~{N}-dimethyl-ethanamide, 3C-like proteinase | | Authors: | Lu, S, Palzkill, T, Matzuk, M, Young, D, Melek, N, Chamakuri, S. | | Deposit date: | 2021-02-19 | | Release date: | 2021-11-10 | | Last modified: | 2023-10-18 | | Method: | X-RAY DIFFRACTION (1.79 Å) | | Cite: | DNA-encoded chemistry technology yields expedient access to SARS-CoV-2 M pro inhibitors.
Proc.Natl.Acad.Sci.USA, 118, 2021
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7LR9
 | | Crystal structure of KPC-2 S70G/T215P mutant with hydrolyzed imipenem | | Descriptor: | (2R)-2-[(2S,3R)-1,3-bis(oxidanyl)-1-oxidanylidene-butan-2-yl]-4-(2-methanimidamidoethylsulfanyl)-2,3-dihydro-1H-pyrrole -5-carboxylic acid, Carbapenem-hydrolyzing beta-lactamase KPC | | Authors: | Furey, I, Palzkill, T, Hu, L, Prasad, B.V.V. | | Deposit date: | 2021-02-16 | | Release date: | 2022-08-10 | | Last modified: | 2023-10-18 | | Method: | X-RAY DIFFRACTION (1.47 Å) | | Cite: | Crystal structure of KPC-2 T215P mutant
To Be Published
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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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7R6Z
 | | OXA-48 bound by Compound 3.3 | | Descriptor: | 1,2-ETHANEDIOL, 4-amino-5-hydroxynaphthalene-2,7-disulfonic acid, Beta-lactamase, ... | | Authors: | Taylor, D.M, Hu, L, Prasad, B.V.V, Sankaran, B, Palzkill, T. | | Deposit date: | 2021-06-24 | | Release date: | 2021-12-01 | | Last modified: | 2023-11-15 | | Method: | X-RAY DIFFRACTION (2.1 Å) | | Cite: | Unique Diacidic Fragments Inhibit the OXA-48 Carbapenemase and Enhance the Killing of Escherichia coli Producing OXA-48.
Acs Infect Dis., 7, 2021
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7S5S
 | | CTX-M-15 WT in complex with BLIP WT | | Descriptor: | Beta-lactamase, Beta-lactamase inhibitory protein | | Authors: | Lu, S, Palzkill, T, Hu, L.Y, Prasad, B.V.V, Sankaran, B. | | Deposit date: | 2021-09-11 | | Release date: | 2022-11-30 | | Last modified: | 2023-10-25 | | Method: | X-RAY DIFFRACTION (1.4 Å) | | Cite: | An active site loop toggles between conformations to control antibiotic hydrolysis and inhibition potency for CTX-M beta-lactamase drug-resistance enzymes.
Nat Commun, 13, 2022
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3CMZ
 | | TEM-1 Class-A beta-lactamase L201P mutant apo structure | | Descriptor: | Beta-lactamase TEM, PHOSPHATE ION | | Authors: | Marciano, D.C, Wang, X, Wang, J, Chen, Y, Thomas, V.L, Shoichet, B.K, Palzkill, T. | | Deposit date: | 2008-03-24 | | Release date: | 2008-11-25 | | Last modified: | 2023-08-30 | | Method: | X-RAY DIFFRACTION (1.92 Å) | | Cite: | Genetic and structural characterization of an L201P global suppressor substitution in TEM-1 beta-lactamase
J.Mol.Biol., 384, 2008
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8TJM
 | | Crystal structure of KPC-44 carbapenemase | | Descriptor: | 1,2-ETHANEDIOL, SULFATE ION, beta-lactamase | | Authors: | Sun, Z, Palzkill, T, Hu, L, Lin, H, Sankaran, B, Wang, J, Prasad, B. | | Deposit date: | 2023-07-23 | | Release date: | 2023-12-06 | | Last modified: | 2023-12-27 | | Method: | X-RAY DIFFRACTION (1.28 Å) | | Cite: | Klebsiella pneumoniae carbapenemase variant 44 acquires ceftazidime-avibactam resistance by altering the conformation of active-site loops.
J.Biol.Chem., 300, 2023
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8TN0
 | | Crystal structure of KPC-44 carbapenemase w/o cryoprotectant | | Descriptor: | SULFATE ION, beta-lactamase | | Authors: | Sun, Z, Palzkill, T, Hu, L, Lin, H, Sankaran, B, Wang, J, Prasad, B. | | Deposit date: | 2023-07-31 | | Release date: | 2023-12-06 | | Last modified: | 2023-12-27 | | Method: | X-RAY DIFFRACTION (1.31 Å) | | Cite: | Klebsiella pneumoniae carbapenemase variant 44 acquires ceftazidime-avibactam resistance by altering the conformation of active-site loops.
J.Biol.Chem., 300, 2023
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8TMR
 | | Crystal structure of KPC-44 carbapenemase complexed with avibactam | | Descriptor: | (2S,5R)-1-formyl-5-[(sulfooxy)amino]piperidine-2-carboxamide, 1,2-ETHANEDIOL, PHOSPHATE ION, ... | | Authors: | Sun, Z, Palzkill, T, Hu, L, Lin, H, Sankaran, B, Wang, J, Prasad, B. | | Deposit date: | 2023-07-30 | | Release date: | 2023-12-06 | | Last modified: | 2023-12-27 | | Method: | X-RAY DIFFRACTION (1.37 Å) | | Cite: | Klebsiella pneumoniae carbapenemase variant 44 acquires ceftazidime-avibactam resistance by altering the conformation of active-site loops.
J.Biol.Chem., 300, 2023
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8ELA
 | | CTX-M-14 beta-lactamase mutant - N132A w MES | | Descriptor: | 2-(N-MORPHOLINO)-ETHANESULFONIC ACID, Beta-lactamase, CHLORIDE ION, ... | | Authors: | Lu, S, Palzkill, T, Hu, L, Prasad, B.V.V. | | Deposit date: | 2022-09-23 | | Release date: | 2023-04-05 | | Last modified: | 2023-10-25 | | Method: | X-RAY DIFFRACTION (1.5 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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8ELB
 | | CTX-M-14 beta-lactamase mutant- N132A | | Descriptor: | Beta-lactamase, DI(HYDROXYETHYL)ETHER | | Authors: | Lu, S, Neetu, N, Palzkill, T. | | Deposit date: | 2022-09-23 | | Release date: | 2023-04-05 | | Last modified: | 2023-10-25 | | Method: | X-RAY DIFFRACTION (1.5 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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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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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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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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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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5HAP
 | | OXA-48 beta-lactamase - S70A mutant | | Descriptor: | (4S)-2-METHYL-2,4-PENTANEDIOL, 1,2-ETHANEDIOL, Beta-lactamase, ... | | Authors: | Stojanoski, V, Adamski, C.J, Hu, L, Mehta, S.C, Sankaran, B, Prasad, B.V.V, Palzkill, T.G. | | Deposit date: | 2015-12-30 | | Release date: | 2016-09-07 | | Last modified: | 2023-11-15 | | Method: | X-RAY DIFFRACTION (1.89 Å) | | Cite: | Removal of the Side Chain at the Active-Site Serine by a Glycine Substitution Increases the Stability of a Wide Range of Serine beta-Lactamases by Relieving Steric Strain.
Biochemistry, 55, 2016
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3QI0
 | | Structural, thermodynamic and kinetic analysis of the picomolar binding affinity interaction of the beta-lactamase inhibitor protein-II (BLIP-II) with class A beta-lactamases | | Descriptor: | Beta-lactamase inhibitory protein II, SULFATE ION | | Authors: | Brown, N.G, Chow, D.C, Sankaran, B, Zwart, P, Prasad, B.V.V, Palzkill, T. | | Deposit date: | 2011-01-26 | | Release date: | 2011-07-20 | | Last modified: | 2024-02-21 | | Method: | X-RAY DIFFRACTION (2.8 Å) | | Cite: | Analysis of the binding forces driving the tight interactions between beta-lactamase inhibitory protein-II (BLIP-II) and class A beta-lactamases.
J.Biol.Chem., 286, 2011
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