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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：P00875 New Search
12PDB entries
12Biological assembly
64chain/assembly records
Main Difference Dimensions in This Set
Different mutation/modification 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
1AA1 ACTIVATED SPINACH RUBISCO IN COMPLEX WITH THE PRODUCT 3-PHOSPHOGLYCERATE Deposited 1997-01-20 Assembly 1 Protein heterocomplex Heteromer；Protein × 16 PDB declaration: hexadecameric（16） Consistent with protein count
Chain B 1–475（475 aa）
Chain E 1–475（475 aa）
Chain H 1–475（475 aa）
Chain L 1–475（475 aa）
Non-standard monomer：Yes (specific site not provided by mmCIF) Non-standard monomer：Yes (specific site not provided by mmCIF) Non-standard monomer：Yes (specific site not provided by mmCIF) Non-standard monomer：Yes (specific site not provided by mmCIF) MG MAGNESIUM ION × 8 3PG 3-PHOSPHOGLYCERIC ACID × 16 X-RAY DIFFRACTION
X-ray crystallization conditions pH 7.2；14% PEG 4000, 0.2 M NACL, 25 MM HEPES PH 7.8 10 MM MGCL2, 100 MM 3-PHOSPHOGLYCERATE, pH 7.2
Resolution 2.20 Å R-free 0.224
1AUS ACTIVATED UNLIGANDED SPINACH RUBISCO Deposited 1995-06-21 Assembly 1 Protein heterocomplex Heteromer；Protein × 16 PDB declaration: hexadecameric（16） Consistent with protein count
Chain L 1–475（475 aa）
Chain M 1–475（475 aa）
Chain N 1–475（475 aa）
Chain O 1–475（475 aa）
Not recorded MG MAGNESIUM ION × 8 FMT FORMIC ACID × 8 X-RAY DIFFRACTION mmCIF provides none of the parsed conditions Resolution 2.20 Å R-free 0.239
1IR1 Crystal Structure of Spinach Ribulose-1,5-Bisphosphate Carboxylase/Oxygenase (Rubisco) Complexed with CO2, Mg2+ and 2-Carboxyarabinitol-1,5-Bisphosphate Deposited 2001-08-31 Assembly 1 Protein heterocomplex Heteromer；Protein × 16 PDB declaration: hexadecameric（16） Consistent with protein count
Chain A 1–475（475 aa）
Chain B 1–475（475 aa）
Chain C 1–475（475 aa）
Chain D 1–475（475 aa）
Non-standard monomer：Yes (specific site not provided by mmCIF) Non-standard monomer：Yes (specific site not provided by mmCIF) Non-standard monomer：Yes (specific site not provided by mmCIF) Non-standard monomer：Yes (specific site not provided by mmCIF) MG MAGNESIUM ION × 8 CAP 2-CARBOXYARABINITOL-1,5-DIPHOSPHATE × 8 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION；pH 7.9；293 K；PEG4000, MgCl2, NaHCO3, DTT, 2-carboxyarabinitol-1,5-bisphosphate, Bicine, pH 7.9, VAPOR DIFFUSION, temperature 293K
Resolution 1.80 Å R-free 0.179
1RBO SPINACH RUBISCO IN COMPLEX WITH THE INHIBITOR 2-CARBOXYARABINITOL-1,5-DIPHOSPHATE Deposited 1996-10-31 Assembly 1 Protein heterocomplex Heteromer；Protein × 16 PDB declaration: hexadecameric（16） Consistent with protein count
Chain B 1–475（475 aa）
Chain E 1–475（475 aa）
Chain H 1–475（475 aa）
Chain L 1–475（475 aa）
Not recorded CAP 2-CARBOXYARABINITOL-1,5-DIPHOSPHATE × 8 X-RAY DIFFRACTION
X-ray crystallization conditions pH 7.4；1.7 M (NH4)2SO4, 50 MM PHOSPHATE, PH 7.4 3 MM MGCL2, 25 MM NAHCO3, 10 MM 4CABP
Resolution 2.30 Å R-free 0.171
1RCO SPINACH RUBISCO IN COMPLEX WITH THE INHIBITOR D-XYLULOSE-2,2-DIOL-1,5-BISPHOSPHATE Deposited 1996-10-31 Assembly 1 Protein heterocomplex Heteromer；Protein × 16 PDB declaration: hexadecameric（16） Consistent with protein count
Chain B 1–475（475 aa）
Chain E 1–475（475 aa）
Chain H 1–475（475 aa）
Chain K 1–475（475 aa）
Chain L 1–475（475 aa）
Chain O 1–475（475 aa）
Chain R 1–475（475 aa）
Chain V 1–475（475 aa）
Not recorded XDP D-XYLULOSE-2,2-DIOL-1,5-BISPHOSPHATE × 8 X-RAY DIFFRACTION
X-ray crystallization conditions pH 7.8；15% PEG 4000, 25 MM HEPES PH 7.8, 10 MM CACL2, 0.2 M NACL, 50 MM NAHCO3, 20 MM XUBP
Resolution 2.30 Å R-free 0.246
1RCX NON-ACTIVATED SPINACH RUBISCO IN COMPLEX WITH ITS SUBSTRATE RIBULOSE-1,5-BISPHOSPHATE Deposited 1996-12-06 Assembly 1 Protein heterocomplex Heteromer；Protein × 16 PDB declaration: hexadecameric（16） Consistent with protein count
Chain B 1–475（475 aa）
Chain E 1–475（475 aa）
Chain H 1–475（475 aa）
Chain K 1–475（475 aa）
Chain L 1–475（475 aa）
Chain O 1–475（475 aa）
Chain R 1–475（475 aa）
Chain V 1–475（475 aa）
Not recorded RUB RIBULOSE-1,5-DIPHOSPHATE × 8 X-RAY DIFFRACTION
X-ray crystallization conditions pH 7.8；12% PEG 4000, 25 MM HEPES PH 7.8, 0.2 M NACL, 20 MM RUBP
Resolution 2.40 Å R-free 0.237
1RXO ACTIVATED SPINACH RUBISCO IN COMPLEX WITH ITS SUBSTRATE RIBULOSE-1,5-BISPHOSPHATE AND CALCIUM Deposited 1996-12-06 Assembly 1 Protein heterocomplex Heteromer；Protein × 16 PDB declaration: hexadecameric（16） Consistent with protein count
Chain B 1–475（475 aa）
Chain E 1–475（475 aa）
Chain H 1–475（475 aa）
Chain L 1–475（475 aa）
Non-standard monomer：Yes (specific site not provided by mmCIF) Non-standard monomer：Yes (specific site not provided by mmCIF) Non-standard monomer：Yes (specific site not provided by mmCIF) Non-standard monomer：Yes (specific site not provided by mmCIF) RUB RIBULOSE-1,5-DIPHOSPHATE × 8 CA CALCIUM ION × 8 X-RAY DIFFRACTION
X-ray crystallization conditions pH 7.8；14% PEG4000, 25 MM HEPES PH 7.8, 0.2 M NACL, 10 MM CACL2; SOAKED WITH 20 MM RUBP FOR 5 DAYS
Resolution 2.20 Å R-free 0.229
1UPM ACTIVATED SPINACH RUBISCO COMPLEXED WITH 2-CARBOXYARABINITOL 2 BISPHOSPHAT AND CA2+. Deposited 2003-10-08 Assembly 1 Protein heterocomplex Heteromer；Protein × 16 PDB declaration: hexadecameric（16） Consistent with protein count
Chain B 1–475（475 aa）
Chain E 1–475（475 aa）
Chain H 1–475（475 aa）
Chain K 1–475（475 aa）
Chain L 1–475（475 aa）
Chain O 1–475（475 aa）
Chain R 1–475（475 aa）
Chain V 1–475（475 aa）
Non-standard monomer：Yes (specific site not provided by mmCIF) Non-standard monomer：Yes (specific site not provided by mmCIF) Non-standard monomer：Yes (specific site not provided by mmCIF) Non-standard monomer：Yes (specific site not provided by mmCIF) Non-standard monomer：Yes (specific site not provided by mmCIF) Non-standard monomer：Yes (specific site not provided by mmCIF) Non-standard monomer：Yes (specific site not provided by mmCIF) Non-standard monomer：Yes (specific site not provided by mmCIF) CA CALCIUM ION × 8 CAP 2-CARBOXYARABINITOL-1,5-DIPHOSPHATE × 8 X-RAY DIFFRACTION
X-ray crystallization conditions pH 7.8；10% PEG 4000, 0.1 M HEPES PH 7.8, 10 MM CACL2, 0.2 M NACL, 50 MM NAHCO3, 1MM 2-CABP
Resolution 2.30 Å R-free 0.200
1UPP SPINACH RUBISCO IN COMPLEX WITH 2-CARBOXYARABINITOL 2 BISPHOSPHATE and Calcium. Deposited 2003-10-09 Assembly 1 Protein heterocomplex Heteromer；Protein × 16 PDB declaration: hexadecameric（16） Consistent with protein count
Chain A 1–475（475 aa）
Chain C 1–475（475 aa）
Chain E 1–475（475 aa）
Chain G 1–475（475 aa）
Non-standard monomer：Yes (specific site not provided by mmCIF) Non-standard monomer：Yes (specific site not provided by mmCIF) Non-standard monomer：Yes (specific site not provided by mmCIF) Non-standard monomer：Yes (specific site not provided by mmCIF) CA CALCIUM ION × 8 CAP 2-CARBOXYARABINITOL-1,5-DIPHOSPHATE × 8 X-RAY DIFFRACTION
X-ray crystallization conditions pH 7.8；10% PEG 4000, 0.1M HEPES PH 7.8, 10 MM CACL2, 0.2 M NACL, 50 MM NAHCO3, 0.1 M 3PGA THEN SOAKED IN 2-CABP
Resolution 2.30 Å R-free 0.307
8QJ0 Room-temperature Serial Synchrotron Crystallography structure of Spinacia oleracea RuBisCO Deposited 2023-09-12 Assembly 1 Protein heterocomplex Heteromer；Protein × 8 PDB declaration: octameric（8） Consistent with protein count
Chain L 1–475（475 aa）
Chain M 1–475（475 aa）
Chain N 1–475（475 aa）
Chain O 1–475（475 aa）
Non-standard monomer：Yes (specific site not provided by mmCIF) Non-standard monomer：Yes (specific site not provided by mmCIF) Non-standard monomer：Yes (specific site not provided by mmCIF) Non-standard monomer：Yes (specific site not provided by mmCIF) MG MAGNESIUM ION × 4 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；293 K；SpRub solution at a concentration of 15 mg/mL (in a buffer of 20 mM HEPES, 5 mM MgCl2, pH 8.0), combined reservoir solution (0.2 M MgCl2x6H2O, 0.1 M Tris pH 7.0, 12% w/v PEG 8000
Resolution 2.30 Å R-free 0.227
8RUC ACTIVATED SPINACH RUBISCO COMPLEXED WITH 2-CARBOXYARABINITOL BISPHOSPHATE Deposited 1996-02-22 Assembly 1 Protein heterocomplex Heteromer；Protein × 16 PDB declaration: hexadecameric（16） Consistent with protein count
Chain A 1–475（475 aa）
Chain C 1–475（475 aa）
Chain E 1–475（475 aa）
Chain G 1–475（475 aa）
Non-standard monomer：Yes (specific site not provided by mmCIF) Non-standard monomer：Yes (specific site not provided by mmCIF) Non-standard monomer：Yes (specific site not provided by mmCIF) Non-standard monomer：Yes (specific site not provided by mmCIF) MG MAGNESIUM ION × 8 CAP 2-CARBOXYARABINITOL-1,5-DIPHOSPHATE × 8 X-RAY DIFFRACTION
X-ray crystallization conditions pH 7.5；pH 7.5
Resolution 1.60 Å
9CQ5 Mn-bound RuBisCO from spinach with CABP inhibitor Deposited 2024-07-19 Assembly 1 Protein heterocomplex Heteromer；Protein × 16 PDB declaration: hexadecameric（16） Consistent with protein count
Chain A 1–475（475 aa）
Chain B 1–475（475 aa）
Chain C 1–475（475 aa）
Chain D 1–475（475 aa）
Chain E 1–475（475 aa）
Chain F 1–475（475 aa）
Chain G 1–475（475 aa）
Chain H 1–475（475 aa）
Non-standard monomer：Yes (specific site not provided by mmCIF) Non-standard monomer：Yes (specific site not provided by mmCIF) Non-standard monomer：Yes (specific site not provided by mmCIF) Non-standard monomer：Yes (specific site not provided by mmCIF) Non-standard monomer：Yes (specific site not provided by mmCIF) Non-standard monomer：Yes (specific site not provided by mmCIF) Non-standard monomer：Yes (specific site not provided by mmCIF) Non-standard monomer：Yes (specific site not provided by mmCIF) MN MANGANESE (II) ION × 8 CAP 2-CARBOXYARABINITOL-1,5-DIPHOSPHATE × 8 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 5.3；298 K；PEG 3350, lithium acetate, potassium phosphate
Resolution 2.50 Å R-free 0.242

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.