← Back to search

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：P08178 New Search
4PDB entries
9Biological assembly
19chain/assembly records
Main Difference Dimensions in This Set
Different construct Different assembly state 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
1CLI X-RAY CRYSTAL STRUCTURE OF AMINOIMIDAZOLE RIBONUCLEOTIDE SYNTHETASE (PURM), FROM THE E. COLI PURINE BIOSYNTHETIC PATHWAY, AT 2.5 A RESOLUTION Deposited 1999-04-28 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain B 2–345（344 aa）
Chain D 2–345（344 aa）
Not recorded SO4 SULFATE ION × 2 X-RAY DIFFRACTION
X-ray crystallization conditions pH 5.6；pH 5.6
Resolution 2.50 Å R-free 0.264
1CLI X-RAY CRYSTAL STRUCTURE OF AMINOIMIDAZOLE RIBONUCLEOTIDE SYNTHETASE (PURM), FROM THE E. COLI PURINE BIOSYNTHETIC PATHWAY, AT 2.5 A RESOLUTION Deposited 1999-04-28 Assembly 2 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain C 2–345（344 aa）
Chain D 2–345（344 aa）
Not recorded SO4 SULFATE ION × 2 X-RAY DIFFRACTION
X-ray crystallization conditions pH 5.6；pH 5.6
Resolution 2.50 Å R-free 0.264
1CLI X-RAY CRYSTAL STRUCTURE OF AMINOIMIDAZOLE RIBONUCLEOTIDE SYNTHETASE (PURM), FROM THE E. COLI PURINE BIOSYNTHETIC PATHWAY, AT 2.5 A RESOLUTION Deposited 1999-04-28 Assembly 3 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 2–345（344 aa）
Chain B 2–345（344 aa）
Not recorded SO4 SULFATE ION × 2 X-RAY DIFFRACTION
X-ray crystallization conditions pH 5.6；pH 5.6
Resolution 2.50 Å R-free 0.264
1CLI X-RAY CRYSTAL STRUCTURE OF AMINOIMIDAZOLE RIBONUCLEOTIDE SYNTHETASE (PURM), FROM THE E. COLI PURINE BIOSYNTHETIC PATHWAY, AT 2.5 A RESOLUTION Deposited 1999-04-28 Assembly 4 Protein homooligomer Homooligomer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain A 2–345（344 aa）
Chain B 2–345（344 aa）
Chain C 2–345（344 aa）
Chain D 2–345（344 aa）
Not recorded SO4 SULFATE ION × 4 X-RAY DIFFRACTION
X-ray crystallization conditions pH 5.6；pH 5.6
Resolution 2.50 Å R-free 0.264
9JZW Crystal structure of E. coli AIR synthetase Deposited 2024-10-15 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 1–345（345 aa）
Chain B 1–345（345 aa）
Not recorded SO4 SULFATE ION × 4 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；298 K；ammonium sulfate, 2-propanol
Resolution 2.10 Å R-free 0.239
9JZW Crystal structure of E. coli AIR synthetase Deposited 2024-10-15 Assembly 2 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain C 1–345（345 aa）
Chain D 1–345（345 aa）
Not recorded SO4 SULFATE ION × 5 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；298 K；ammonium sulfate, 2-propanol
Resolution 2.10 Å R-free 0.239
9JZX Crystal structure of E. coli AIR synthetase bound to AMP Deposited 2024-10-15 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 1–345（345 aa）
Chain B 1–345（345 aa）
Not recorded SO4 SULFATE ION × 5 AMP ADENOSINE MONOPHOSPHATE × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；298 K；ammonium sulfate, 2-propanol
Resolution 2.50 Å R-free 0.245
9JZX Crystal structure of E. coli AIR synthetase bound to AMP Deposited 2024-10-15 Assembly 2 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain C 1–345（345 aa）
Chain D 1–345（345 aa）
Not recorded SO4 SULFATE ION × 5 AMP ADENOSINE MONOPHOSPHATE × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；298 K；ammonium sulfate, 2-propanol
Resolution 2.50 Å R-free 0.245
9VNU Crystal structure of chimeric AIR synthetase constructed from E. coli (residues 1-168) and Pyrococcus abyssi (residues 163-334) Deposited 2025-07-01 Assembly 1 Insufficient information Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 1–168（168 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；298 K；pentaerythritol ethoxylate (3/4 EO/OH), magnesium chloride
Resolution 2.40 Å R-free 0.223

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.