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Protein Structures and Oligomeric States

Enter a protein name, UniProt accession or PDB ID. Name searches ask you to confirm the protein identity before related structures are queried.

Current Protein Identity：Q56310 New Search
22PDB entries
32Biological assembly
42chain/assembly records
Main Difference Dimensions in This Set
Different construct Different mutation/modification Different assembly state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics

Difference tags compare only the current result set; every original PDB and assembly record remains separate.

Related-Structure Differences

Each row represents one biological assembly in one PDB entry; multiple monomers of the same protein are listed separately.

PDB Entry Assembly / Oligomeric State Construct Mutations and Modifications Ligands, Ions and Non-polymers Experimental Method Experimental Conditions Structure Quality
1B3Q CRYSTAL STRUCTURE OF CHEA-289, A SIGNAL TRANSDUCING HISTIDINE KINASE Deposited 1998-12-14 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 293–671（379 aa） Fragment：DIMERIZATION DOMAIN, KINASE DOMAIN AND REGULATORY DOMAIN
Chain B 293–671（379 aa） Fragment：DIMERIZATION DOMAIN, KINASE DOMAIN AND REGULATORY DOMAIN
Mutation：Q545C, I521M, S522G Mutation：Q545C, I521M, S522G HG MERCURY (II) ION × 2 X-RAY DIFFRACTION
X-ray crystallization conditions pH 5.5；80MM SUCCINATE, PH 5.5, 20% MPD, 5% ISOPROPANOL, 4% PEG 8000
Resolution 2.60 Å R-free 0.285
1I58 STRUCTURE OF THE HISTIDINE KINASE CHEA ATP-BINDING DOMAIN IN COMPLEX WITH ATP ANALOG ADPCP AND MAGNESIUM Deposited 2001-02-26 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 352–540（189 aa） Fragment：DOMAIN P4
Chain B 352–540（189 aa） Fragment：DOMAIN P4
Mutation：R354H, I353S, K352G Mutation：R354H, I353S, K352G ACT ACETATE ION × 2 MG MAGNESIUM ION × 1 ACP PHOSPHOMETHYLPHOSPHONIC ACID ADENYLATE ESTER × 1 ADP ADENOSINE-5'-DIPHOSPHATE × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 5；293 K；PEG 8000 33-36% Ammonium acetate 0.8 M sodium acetate 0.085 M pH 4.5. VAPOR DIFFUSION, HANGING DROP at 293 K
Resolution 1.60 Å R-free 0.262
1I59 STRUCTURE OF THE HISTIDINE KINASE CHEA ATP-BINDING DOMAIN IN COMPLEX WITH ADPNP AND MAGENSIUM Deposited 2001-02-26 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 352–540（189 aa） Fragment：DOMAIN P4
Chain B 352–540（189 aa） Fragment：DOMAIN P4
Mutation：R354H, I353S, K352G Mutation：R354H, I353S, K352G ACT ACETATE ION × 1 MG MAGNESIUM ION × 1 ANP PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER × 1 ADP ADENOSINE-5'-DIPHOSPHATE × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 5；293 K；PEG 8000 33-36% Ammonium acetate 0.8 M sodium acetate 0.085 M pH 4.5. VAPOR DIFFUSION, HANGING DROP at 293 K
Resolution 1.80 Å R-free 0.253
1I5A STRUCTURE OF CHEA DOMAIN P4 IN COMPLEX WITH ADPCP AND MANGANESE Deposited 2001-02-26 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 352–540（189 aa） Fragment：DOMAIN P4
Chain B 352–540（189 aa） Fragment：DOMAIN P4
Mutation：R354H, I353S, K352G Mutation：R354H, I353S, K352G MN MANGANESE (II) ION × 2 ACP PHOSPHOMETHYLPHOSPHONIC ACID ADENYLATE ESTER × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 5；293 K；PEG 8000 33-36% Ammonium acetate 0.8 M sodium acetate 0.085 M pH 4.5. VAPOR DIFFUSION, HANGING DROP at 293 K
Resolution 1.90 Å R-free 0.253
1I5B STRUCTURE OF CHEA DOMAIN P4 IN COMPLEX WITH ADPNP AND MANGANESE Deposited 2001-02-26 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 352–540（189 aa） Fragment：DOMAIN P4
Chain B 352–540（189 aa） Fragment：DOMAIN P4
Mutation：R354H, I353S, K352G Mutation：R354H, I353S, K352G ACT ACETATE ION × 1 MN MANGANESE (II) ION × 2 ANP PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 5；293 K；PEG 8000 33-36% Ammonium acetate 0.8 M sodium acetate 0.085 M pH 4.5. VAPOR DIFFUSION, HANGING DROP at 293 K
Resolution 1.94 Å R-free 0.265
1I5C STRUCTURE OF CHEA DOMAIN P4 IN COMPLEX WITH ADP Deposited 2001-02-26 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 352–540（189 aa） Fragment：DOMAIN P4
Chain B 352–540（189 aa） Fragment：DOMAIN P4
Mutation：R354H, I353S, K352G Mutation：R354H, I353S, K352G ADP ADENOSINE-5'-DIPHOSPHATE × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 5；293 K；PEG 8000 33-36% Ammonium acetate 0.8 M sodium acetate 0.085 M pH 5.0. VAPOR DIFFUSION, HANGING DROP at 293 K
Resolution 1.90 Å R-free 0.261
1I5D STRUCTURE OF CHEA DOMAIN P4 IN COMPLEX WITH TNP-ATP Deposited 2001-02-26 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 350–540（191 aa） Fragment：DOMAIN P4
Not recorded SO4 SULFATE ION × 2 128 SPIRO(2,4,6-TRINITROBENZENE[1,2A]-2O',3O'-METHYLENE-ADENINE-TRIPHOSPHATE × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 4.7；298 K；sodium acetate 0.1 M Ammonium sulfate 1.9 M, pH 4.7. VAPOR DIFFUSION, HANGING DROP at 298 K
Resolution 2.90 Å R-free 0.312
1TQG CheA phosphotransferase domain from Thermotoga maritima Deposited 2004-06-17 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 4–104（101 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 4.5；298 K；28% PEG 8K, 0.1M NaOAc pH=4.5, and 0.2M NH4OAc, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Resolution 0.98 Å R-free 0.211
1U0S Chemotaxis kinase CheA P2 domain in complex with response regulator CheY from the thermophile thermotoga maritima Deposited 2004-07-14 Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 175–260（86 aa） Fragment：CheA histidine kinase P2 domain
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7.5；298 K；25-30% PEG 12K, 0.1M Hepes, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 298.0K
Resolution 1.90 Å R-free 0.253
2CH4 Complex between Bacterial Chemotaxis histidine kinase CheA domains P4 and P5 and receptor-adaptor protein CheW Deposited 2006-03-10 Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 355–671（317 aa） Fragment：CHEA KINASE AND REGULATORY DOMAINS, RESIDUES 355-671
Not recorded ANP PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER × 1 X-RAY DIFFRACTION
X-ray crystallization conditions PEG 4K 3-5%,NA ACETATE 0.1M PH 4.5,ADPNP 1MM
Resolution 3.50 Å R-free 0.295
2CH4 Complex between Bacterial Chemotaxis histidine kinase CheA domains P4 and P5 and receptor-adaptor protein CheW Deposited 2006-03-10 Assembly 2 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain B 355–671（317 aa） Fragment：CHEA KINASE AND REGULATORY DOMAINS, RESIDUES 355-671
Not recorded ANP PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER × 1 X-RAY DIFFRACTION
X-ray crystallization conditions PEG 4K 3-5%,NA ACETATE 0.1M PH 4.5,ADPNP 1MM
Resolution 3.50 Å R-free 0.295
2LD6 Solution Structure of Histidine Phosphotransfer Domain of CheA Deposited 2011-05-16 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 1–131（131 aa） Fragment：HPt domain residues 1-131
Not recorded No recorded non-water small molecule SOLUTION NMR
NMR measurement conditions pH 7.4；298 K；Ionic strength (raw mmCIF value) 0.05；Pressure ambient
NMR sample composition 1 mM [U-99% 13C; U-99% 15N] P1, 90 % H2O/10 % [U-99% 2H] D2O | 90% H2O/10% D2O
Resolution not provided
3UR1 The structure of a ternary complex between CheA domains P4 and P5 with CheW and with a truncated fragment of TM14, a chemoreceptor analog from Thermotoga maritima. Deposited 2011-11-21 Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain A 355–671（317 aa） Fragment：unp residues 355-671
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions EVAPORATION；pH 8.5；293 K；0.2 M sodium acetate trihydrate, 0.1 M Tris, 15% w/v Polyethylene glycol 4,000, pH 8.5, EVAPORATION, temperature 293K
Resolution 4.50 Å R-free 0.291
4JPB The structure of a ternary complex between CheA domains P4 and P5 with CheW and with an unzipped fragment of TM14, a chemoreceptor analog from Thermotoga maritima. Deposited 2013-03-19 Assembly 1 Protein heterocomplex Heteromer；Protein × 6 PDB declaration: hexameric（6） Consistent with protein count
Chain A 355–671（317 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 8.5；298 K；Cubic shaped crystals (50x50x50 um3) were grown from a mixture of 520 uM Tm14s, 457 uM CheA 354 and 121 uM CheW after 1 month by vapor diffusion from a 2 ul drop (1:1 mixture of protein and reservoir: 500 ul reservoir of 0.2 M sodium acetate trihydrate, 0.1 M Tris (pH 8.5), 15% w/v polyethylene glycol 4,000), VAPOR DIFFUSION, HANGING DROP, temperature 298K
Resolution 3.19 Å R-free 0.220
4XIV Kinase and Dimerization (P3P4) of the Thermotoga maritima CheA kinase Deposited 2015-01-07 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 289–540（252 aa） Fragment：UNP residues 289-540
Chain B 289–540（252 aa） Fragment：UNP residues 289-540
Not recorded ACP PHOSPHOMETHYLPHOSPHONIC ACID ADENYLATE ESTER × 1 ADP ADENOSINE-5'-DIPHOSPHATE × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 5.6；277 K；0.5 M Ammonium sulfate, 0.1 M Sodium citrate (pH 5.6), 1 M Lithium sulfate monohydrate
Resolution 3.00 Å R-free 0.282
6MI6 STRUCTURE OF CHEA DOMAIN P4 IN COMPLEX WITH AN ADP ANALOG Deposited 2018-09-19 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 353–539（187 aa）
Not recorded SO4 SULFATE ION × 2 JSJ 5'-O-[(S)-hydroxy{[(S)-hydroxy{[(1-hydroxy-2,2,5,5-tetramethyl-2,5-dihydro-1H-pyrrol-3-yl)methyl]disulfanyl}phosphoryl]oxy}phosphoryl]adenosine × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 5.5；290 K；50 mM Citrate pH 5.5, 2 M Ammonium Sulfate
Resolution 2.95 Å R-free 0.298
6MI6 STRUCTURE OF CHEA DOMAIN P4 IN COMPLEX WITH AN ADP ANALOG Deposited 2018-09-19 Assembly 2 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain B 353–539（187 aa）
Not recorded JSJ 5'-O-[(S)-hydroxy{[(S)-hydroxy{[(1-hydroxy-2,2,5,5-tetramethyl-2,5-dihydro-1H-pyrrol-3-yl)methyl]disulfanyl}phosphoryl]oxy}phosphoryl]adenosine × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 5.5；290 K；50 mM Citrate pH 5.5, 2 M Ammonium Sulfate
Resolution 2.95 Å R-free 0.298
6MI6 STRUCTURE OF CHEA DOMAIN P4 IN COMPLEX WITH AN ADP ANALOG Deposited 2018-09-19 Assembly 3 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain C 353–539（187 aa）
Not recorded SO4 SULFATE ION × 2 ADP ADENOSINE-5'-DIPHOSPHATE × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 5.5；290 K；50 mM Citrate pH 5.5, 2 M Ammonium Sulfate
Resolution 2.95 Å R-free 0.298
6MI6 STRUCTURE OF CHEA DOMAIN P4 IN COMPLEX WITH AN ADP ANALOG Deposited 2018-09-19 Assembly 4 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain D 353–539（187 aa）
Not recorded ADP ADENOSINE-5'-DIPHOSPHATE × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 5.5；290 K；50 mM Citrate pH 5.5, 2 M Ammonium Sulfate
Resolution 2.95 Å R-free 0.298
8OYQ Structure of the Histidine Kinase CheA ATP-Binding domain in complex with compound ODDHK13 Deposited 2023-05-05 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain B 355–540（186 aa）
Not recorded W6T quinazolin-2-amine × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 5；294.15 K；PEG 8000 30% Ammonium acetate 0.6 M Sodium acetate 0.065 M ph 4.5
Resolution 1.80 Å R-free 0.226
8OYQ Structure of the Histidine Kinase CheA ATP-Binding domain in complex with compound ODDHK13 Deposited 2023-05-05 Assembly 2 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 355–540（186 aa）
Not recorded W6T quinazolin-2-amine × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 5；294.15 K；PEG 8000 30% Ammonium acetate 0.6 M Sodium acetate 0.065 M ph 4.5
Resolution 1.80 Å R-free 0.226
8OYZ Structure of the Histidine Kinase CheA ATP-Binding domain in complex with compound ODDHK10 Deposited 2023-05-05 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain B 355–540（186 aa）
Not recorded WXC 2-azanyl-7,8-dihydro-6~{H}-quinazolin-5-one × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 5；294.15 K；PEG 8000 30% Ammonium acetate 0.6 M Sodium acetate 0.065 M ph 4.5
Resolution 1.85 Å R-free 0.242
8OYZ Structure of the Histidine Kinase CheA ATP-Binding domain in complex with compound ODDHK10 Deposited 2023-05-05 Assembly 2 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 355–540（186 aa）
Chain B 355–540（186 aa）
Not recorded WXC 2-azanyl-7,8-dihydro-6~{H}-quinazolin-5-one × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 5；294.15 K；PEG 8000 30% Ammonium acetate 0.6 M Sodium acetate 0.065 M ph 4.5
Resolution 1.85 Å R-free 0.242
8OYZ Structure of the Histidine Kinase CheA ATP-Binding domain in complex with compound ODDHK10 Deposited 2023-05-05 Assembly 3 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 355–540（186 aa）
Not recorded WXC 2-azanyl-7,8-dihydro-6~{H}-quinazolin-5-one × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 5；294.15 K；PEG 8000 30% Ammonium acetate 0.6 M Sodium acetate 0.065 M ph 4.5
Resolution 1.85 Å R-free 0.242
8OZ9 Structure of the Histidine Kinase CheA ATP-Binding domain in complex with compound QUI-SV-383 Deposited 2023-05-08 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain B 355–540（186 aa）
Not recorded W6E 7-(1~{H}-1,2,3-triazol-5-yl)quinazolin-2-amine × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 5；294.15 K；PEG 8000 30% Ammonium acetate 0.6 M Sodium acetate 0.065 M ph 4.5
Resolution 1.40 Å R-free 0.193
8OZ9 Structure of the Histidine Kinase CheA ATP-Binding domain in complex with compound QUI-SV-383 Deposited 2023-05-08 Assembly 2 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 355–540（186 aa）
Not recorded W6E 7-(1~{H}-1,2,3-triazol-5-yl)quinazolin-2-amine × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 5；294.15 K；PEG 8000 30% Ammonium acetate 0.6 M Sodium acetate 0.065 M ph 4.5
Resolution 1.40 Å R-free 0.193
8P3N Structure of the Histidine Kinase CheA ATP-Binding domain in complex with compound ODDHK8 Deposited 2023-05-18 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 355–540（186 aa）
Chain B 355–540（186 aa）
Not recorded ADZ 9-METHYL-9H-PURIN-6-AMINE × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 5；294.15 K；PEG 8000 30% Ammonium acetate 0.6 M Sodium acetate 0.065 M ph 4.5
Resolution 2.00 Å R-free 0.243
8P3R Structure of the Histidine Kinase CheA ATP-Binding domain in complex with compound ODDHK4 Deposited 2023-05-18 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 355–540（186 aa）
Chain B 355–540（186 aa）
Not recorded WUT 9~{H}-purine × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 5；294.15 K；PEG 8000 30% Ammonium acetate 0.6 M Sodium acetate 0.065 M ph 4.5
Resolution 1.90 Å R-free 0.229
8P59 Structure of the Histidine Kinase CheA ATP-Binding domain in complex with compound QUI-SV-333 Deposited 2023-05-23 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 355–540（186 aa）
Not recorded WZF 7-(2-phenylethoxy)quinazolin-2-amine × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 5；294.15 K；PEG 8000 30% Ammonium acetate 0.6 M Sodium acetate 0.065 M ph 4.5
Resolution 1.80 Å R-free 0.230
8P59 Structure of the Histidine Kinase CheA ATP-Binding domain in complex with compound QUI-SV-333 Deposited 2023-05-23 Assembly 2 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain B 355–540（186 aa）
Not recorded WZF 7-(2-phenylethoxy)quinazolin-2-amine × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 5；294.15 K；PEG 8000 30% Ammonium acetate 0.6 M Sodium acetate 0.065 M ph 4.5
Resolution 1.80 Å R-free 0.230
8PF2 Structure of the Histidine Kinase CheA ATP-Binding domain in complex with compound ODDHK16 Deposited 2023-06-15 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain B 355–540（186 aa）
Not recorded RCO RESORCINOL × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 5；294.15 K；PEG 8000 30% Ammonium acetate 0.6 M Sodium acetate 0.065 M ph 4.5
Resolution 2.10 Å R-free 0.245
8PF2 Structure of the Histidine Kinase CheA ATP-Binding domain in complex with compound ODDHK16 Deposited 2023-06-15 Assembly 2 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 355–540（186 aa）
Not recorded RCO RESORCINOL × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 5；294.15 K；PEG 8000 30% Ammonium acetate 0.6 M Sodium acetate 0.065 M ph 4.5
Resolution 2.10 Å R-free 0.245

This page presents structural evidence recorded in PDB/mmCIF.“No recorded non-water small molecule” does not prove that the experimental sample was ligand-free; experimental conditions belong to the PDB experiment, while ligands and copy counts are shown for each biological assembly.