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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：P32193 New Search
17PDB entries
17Biological assembly
17chain/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
1FJG STRUCTURE OF THE THERMUS THERMOPHILUS 30S RIBOSOMAL SUBUNIT IN COMPLEX WITH THE ANTIBIOTICS STREPTOMYCIN, SPECTINOMYCIN, AND PAROMOMYCIN Deposited 2000-08-08 Assembly 1 Protein–RNA Heteromer；Protein × 20 PDB declaration: 22-meric（22） Consistent with all polymers
Chain V 2–26（25 aa）
Not recorded PAR PAROMOMYCIN × 1 MG MAGNESIUM ION × 96 SCM SPECTINOMYCIN × 1 SRY STREPTOMYCIN × 1 ZN ZINC ION × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.5；277 K；MPD, NH4Cl, KCl, CaCl2, magnesium acetate, sodium cacodylate, streptomycin, paromomycin, spectinomycin, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Resolution 3.00 Å R-free 0.255
1HNW STRUCTURE OF THE THERMUS THERMOPHILUS 30S RIBOSOMAL SUBUNIT IN COMPLEX WITH TETRACYCLINE Deposited 2000-12-08 Assembly 1 Protein–RNA Heteromer；Protein × 20 PDB declaration: 22-meric（22） Consistent with all polymers
Chain V 2–26（25 aa）
Not recorded MG MAGNESIUM ION × 96 TAC TETRACYCLINE × 2 ZN ZINC ION × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.5；277 K；VAPOR DIFFUSION, HANGING DROP at 277 K. MPD, NH4CL, KCL, CACL2, MAGNESIUM ACETATE, SODIUM CACODYLATE, pH 6.5. 80 mM tetracycline soaked into preformed crystals., pH 6.50
Resolution 3.40 Å R-free 0.264
1HNX STRUCTURE OF THE THERMUS THERMOPHILUS 30S RIBOSOMAL SUBUNIT IN COMPLEX WITH PACTAMYCIN Deposited 2000-12-08 Assembly 1 Protein–RNA Heteromer；Protein × 20 PDB declaration: 22-meric（22） Consistent with all polymers
Chain V 2–26（25 aa）
Not recorded MG MAGNESIUM ION × 96 PCY Pactamycin × 1 ZN ZINC ION × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.5；277 K；VAPOR DIFFUSION, HANGING DROP AT 277 K. MPD, NH4CL, KCL, CACL2, MAGNESIUM ACETATE, SODIUM CACODYLATE, pH 6.50. 80 uM Pactamycin soaked into preformed crystals.
Resolution 3.40 Å R-free 0.280
1HNZ STRUCTURE OF THE THERMUS THERMOPHILUS 30S RIBOSOMAL SUBUNIT IN COMPLEX WITH HYGROMYCIN B Deposited 2000-12-08 Assembly 1 Protein–RNA Heteromer；Protein × 20 PDB declaration: 22-meric（22） Consistent with all polymers
Chain V 2–26（25 aa）
Not recorded MG MAGNESIUM ION × 96 HYG HYGROMYCIN B × 1 ZN ZINC ION × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.5；277 K；VAPOR DIFFUSION, HANGING DROP at 277 K. MPD, NH4CL, KCL, CACL2, MAGNESIUM ACETATE, SODIUM CACODYLATE, pH 6.50. 80 uM HYGROMYCIN B soaked into preformed crystals.
Resolution 3.30 Å R-free 0.261
1HR0 CRYSTAL STRUCTURE OF INITIATION FACTOR IF1 BOUND TO THE 30S RIBOSOMAL SUBUNIT Deposited 2000-12-20 Assembly 1 Protein–RNA Heteromer；Protein × 21 PDB declaration: 23-meric（23） Consistent with all polymers
Chain V 2–26（25 aa）
Not recorded MG MAGNESIUM ION × 65 ZN ZINC ION × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.5；277 K；15% MPD, 25 mM magnesium Acetate, 200 mM KCl, 75 mM NH4Cl, 100 mM K-Cacodylate, pH 6.50. VAPOR DIFFUSION, HANGING DROP at 277 K Initiation factor 1 soaked into pre-formed crystals.
Resolution 3.20 Å R-free 0.261
1IBK STRUCTURE OF THE THERMUS THERMOPHILUS 30S RIBOSOMAL SUBUNIT IN COMPLEX WITH THE ANTIBIOTIC PAROMOMYCIN Deposited 2001-03-28 Assembly 1 Protein–RNA Heteromer；Protein × 20 PDB declaration: 22-meric（22） Consistent with all polymers
Chain V 1–26（26 aa）
Not recorded PAR PAROMOMYCIN × 1 MG MAGNESIUM ION × 113 ZN ZINC ION × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.5；277 K；MPD, AMMONIUM CHLORIDE, POTASSIUM CHLORIDE, MAGNESIUM ACETATE, SODIUM CACODYLATE, pH 6.5, VAPOR DIFFUSION, HANGING DROP at 277K, pH 6.50
Resolution 3.31 Å R-free 0.282
1IBL STRUCTURE OF THE THERMUS THERMOPHILUS 30S RIBOSOMAL SUBUNIT IN COMPLEX WITH A MESSENGER RNA FRAGMENT AND COGNATE TRANSFER RNA ANTICODON STEM-LOOP BOUND AT THE A SITE AND WITH THE ANTIBIOTIC PAROMOMYCIN Deposited 2001-03-28 Assembly 1 Protein–RNA Heteromer；Protein × 20 PDB declaration: 24-meric（24） Consistent with all polymers
Chain V 1–26（26 aa）
Not recorded PAR PAROMOMYCIN × 1 MG MAGNESIUM ION × 125 ZN ZINC ION × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.5；277 K；MPD, AMMONIUM CHLORIDE, POTASSIUM CHLORIDE, MAGNESIUM ACETATE, SODIUM CACODYLATE, pH 6.5, VAPOR DIFFUSION, HANGING DROP at 277K, pH 6.50
Resolution 3.11 Å R-free 0.275
1IBM STRUCTURE OF THE THERMUS THERMOPHILUS 30S RIBOSOMAL SUBUNIT IN COMPLEX WITH A MESSENGER RNA FRAGMENT AND COGNATE TRANSFER RNA ANTICODON STEM-LOOP BOUND AT THE A SITE Deposited 2001-03-28 Assembly 1 Protein–RNA Heteromer；Protein × 20 PDB declaration: 24-meric（24） Consistent with all polymers
Chain V 1–26（26 aa）
Not recorded MG MAGNESIUM ION × 120 ZN ZINC ION × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.5；277 K；MPD, AMMONIUM CHLORIDE, POTASSIUM CHLORIDE, MAGNESIUM ACETATE, SODIUM CACODYLATE pH 6.5, VAPOR DIFFUSION, HANGING DROP at 277K, pH 6.50
Resolution 3.31 Å R-free 0.286
1J5E Structure of the Thermus thermophilus 30S Ribosomal Subunit Deposited 2002-04-08 Assembly 1 Protein–RNA Heteromer；Protein × 20 PDB declaration: 21-meric（21） Consistent with all polymers
Chain V 1–26（26 aa）
Not recorded UNX UNKNOWN LIGAND × 188 ZN ZINC ION × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.5；277 K；MPD, NH4Cl, KCl, CaCl2, magnesium acetate, sodium cacodylate, pH 6.5, VAPOR DIFFUSION, HANGING DROP at 277K
Resolution 3.05 Å R-free 0.252
1JGO The Path of Messenger RNA Through the Ribosome. THIS FILE, 1JGO, CONTAINS THE 30S RIBOSOME SUBUNIT, THREE TRNA, AND MRNA MOLECULES. 50S RIBOSOME SUBUNIT IS IN THE FILE 1GIY Deposited 2001-06-26 Assembly 1 Protein–RNA Heteromer；Protein × 20 PDB declaration: 25-meric（25） Consistent with all polymers
Chain X 1–26（26 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION；pH 7.4；20 mM MgCl2, 100 mM KCl, 20 mM tris HCl, pH 7.4, VAPOR DIFFUSION
Resolution 5.60 Å
1JGP The Path of Messenger RNA Through the Ribosome. THIS FILE, 1JGP, CONTAINS THE 30S RIBOSOME SUBUNIT, THREE TRNA, AND MRNA MOLECULES. 50S RIBOSOME SUBUNIT IS IN THE FILE 1GIY Deposited 2001-06-26 Assembly 1 Protein–RNA Heteromer；Protein × 20 PDB declaration: 25-meric（25） Consistent with all polymers
Chain X 1–26（26 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION；pH 7.4；20 mM MgCl2, 100 mM KCl, 20 mM tris HCl, pH 7.4, VAPOR DIFFUSION
Resolution 7.00 Å
1JGQ The Path of Messenger RNA Through the Ribosome. THIS FILE, 1JGQ, CONTAINS THE 30S RIBOSOME SUBUNIT, THREE TRNA, AND MRNA MOLECULES. 50S RIBOSOME SUBUNIT IS IN THE FILE 1GIY Deposited 2001-06-26 Assembly 1 Protein–RNA Heteromer；Protein × 20 PDB declaration: 25-meric（25） Consistent with all polymers
Chain X 1–26（26 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION；pH 7.4；20 mM MgCl2, 100 mM KCl, 20 mM tris HCl, pH 7.4, VAPOR DIFFUSION
Resolution 5.00 Å
1N32 Structure of the Thermus thermophilus 30S ribosomal subunit bound to codon and near-cognate transfer RNA anticodon stem-loop mismatched at the first codon position at the a site with paromomycin Deposited 2002-10-25 Assembly 1 Protein–RNA Heteromer；Protein × 20 PDB declaration: 23-meric（23） Consistent with all polymers
Chain V 1–26（26 aa）
Not recorded PAR PAROMOMYCIN × 1 MG MAGNESIUM ION × 158 ZN ZINC ION × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.5；277 K；MPD, NH4Cl, KCl, CaCl2, magnesium acetate, potassium-MES, sodium cacodylate, PH 6.5, VAPOR DIFFUSION, HANGING DROP AT 277K
Resolution 3.00 Å R-free 0.270
1N33 Structure of the Thermus thermophilus 30S ribosomal subunit bound to codon and near-cognate transfer rna anticodon stem-loop mismatched at the second codon position at the a site with paromomycin Deposited 2002-10-25 Assembly 1 Protein–RNA Heteromer；Protein × 20 PDB declaration: 23-meric（23） Consistent with all polymers
Chain V 1–26（26 aa）
Not recorded PAR PAROMOMYCIN × 1 MG MAGNESIUM ION × 106 ZN ZINC ION × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.5；277 K；MPD, NH4Cl, KCl, CaCl2, magnesium acetate, potassium-MES, sodium cacodylate, PH 6.5, VAPOR DIFFUSION, HANGING DROP AT 277K
Resolution 3.35 Å R-free 0.284
3OTO Crystal Structure of the 30S ribosomal subunit from a KsgA mutant of Thermus thermophilus (HB8) Deposited 2010-09-13 Assembly 1 Protein–RNA Heteromer；Protein × 20 PDB declaration: 21-meric（21） Consistent with all polymers
Chain U 1–27（27 aa）
Not recorded MG MAGNESIUM ION × 94 K POTASSIUM ION × 42 ZN ZINC ION × 2 X-RAY DIFFRACTION
X-ray crystallization conditions hanging drop；pH 6.5；277 K；pH 6.5, hanging drop, temperature 277K
Resolution 3.69 Å R-free 0.231
4AQY Structure of ribosome-apramycin complexes Deposited 2012-04-20 Assembly 1 Protein–RNA Heteromer；Protein × 20 PDB declaration: 23-meric（23） Consistent with all polymers
Chain V 1–26（26 aa）
Not recorded MG MAGNESIUM ION × 203 K POTASSIUM ION × 15 AM2 APRAMYCIN × 5 ZN ZINC ION × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；277 K；MPD, NH4CL, KCL, CACL2, MAGNESIUM ACETATE, SODIUM CACODYLATE, PH 6.5, VAPOR DIFFUSION, HANGING DROP AT 277K
Resolution 3.50 Å R-free 0.235
4V42 Crystal structure of the ribosome at 5.5 A resolution. Deposited 2001-03-30 Assembly 1 Insufficient information Heteromer；Protein × 42 PDB declaration: 49-meric（49） Consistent with all polymers
Chain AX 1–26（26 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION mmCIF provides none of the parsed conditions Resolution 5.50 Å

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.