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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：Q9Z7Z3 New Search
4PDB entries
4Biological assembly
7chain/assembly records
Main Difference Dimensions in This Set
Different ligand/ion 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
9Y81 Crystal structure of Glutamate-tRNA synthetase GluRS from Chlamydia pneumoniae Deposited 2025-09-11 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 1–505（505 aa）
Chain B 1–505（505 aa）
Not recorded SO4 SULFATE ION × 6 CL CHLORIDE ION × 13 EDO 1,2-ETHANEDIOL × 6 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 5.5；291 K；JCSG+ H7: 0.20 M ammonium sulfate, 0.10 M Bis-Tris, pH 5.5, 25% PEG 3350. ChpnA.01348.a.UX11.PS38780 at 9.1 mg/mL. plate 20178 H7 d2, Puck: PSL-1705, Cryo: 20% ethylene glycol + 80% crystallant
Resolution 2.08 Å R-free 0.233
9Z2X Crystal structure of Glutamate-tRNA synthetase GluRS from Chlamydia pneumoniae (Orthorhombic C form) Deposited 2025-11-05 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 1–505（505 aa）
Not recorded CL CHLORIDE ION × 6 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 5；291 K；0.1M NaCH3COO/CH3COOH pH 5.0, 2% PEG 4000, 15% MPD. ChpnA.01348.a.UX11.PS38780 at 8 mg/mL. 2 mM ATP added to the protein prior to crystallization. plate 20340 E8 drop 1, Puck: PSL-1216, Cryo: 25% MPD + 75% crystallant
Resolution 2.75 Å R-free 0.265
9Z2Y Crystal structure of Glutamate-tRNA synthetase GluRS from Chlamydia pneumoniae in complex with ATP Deposited 2025-11-05 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 1–505（505 aa）
Chain B 1–505（505 aa）
Not recorded SO4 SULFATE ION × 6 CL CHLORIDE ION × 2 ATP ADENOSINE-5'-TRIPHOSPHATE × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 5.5；291 K；JCSG+ H7: 0.20 M ammonium sulfate, 0.10 M Bis-Tris, pH 5.5, 25% PEG 3350. ChpnA.01348.a.UX11.PS38780 at 8 mg/mL. 2 mM ATP added to the protein prior to crystallization. ATP only bound in one subunit. plate 20308 F10 drop2, Puck: PSL-0302, Cryo: 33% (w/v) PEG 3350, 0.1M Bis-Tris pH 5.5, 0.2M Ammonium Sulfate
Resolution 2.65 Å R-free 0.264
9Z2Z Crystal structure of Glutamate-tRNA synthetase GluRS from Chlamydia pneumoniae in complex with O5'-(L-GLUTAMYL-SULFAMOYL)-ADENOSINE Deposited 2025-11-05 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 1–505（505 aa）
Chain B 1–505（505 aa）
Not recorded GSU O5'-(L-GLUTAMYL-SULFAMOYL)-ADENOSINE × 2 CL CHLORIDE ION × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 7；291 K；Proplex F1: 0.1M HEPES pH 7.0, 20% PEG 8000. ChpnA.01348.a.UX11.PS38780 at 8 mg/mL. 2 mM GSU added to the protein prior to crystallization. 20179 F1 drop 1, Puck: PSL-0609, Cryo: 20% glycerol + 80% crystallant
Resolution 2.80 Å R-free 0.254

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.