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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：Q08751 New Search
16PDB entries
24Biological assembly
32chain/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
1BVZ ALPHA-AMYLASE II (TVAII) FROM THERMOACTINOMYCES VULGARIS R-47 Deposited 1998-09-22 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 1–585（585 aa） Fragment：N,A,B.C
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions pH 6.1；pH 6.1
Resolution 2.60 Å R-free 0.272
1BVZ ALPHA-AMYLASE II (TVAII) FROM THERMOACTINOMYCES VULGARIS R-47 Deposited 1998-09-22 Assembly 2 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain B 1–585（585 aa） Fragment：N,A,B.C
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions pH 6.1；pH 6.1
Resolution 2.60 Å R-free 0.272
1G1Y CRYSTAL STRUCTURE OF ALPHA-AMYLASE II (TVAII) FROM THERMOACTINOMYCES VULGARIS R-47 AND BETA-CYCLODEXTRIN COMPLEX Deposited 2000-10-16 Assembly 1 Other combination Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 1–585（585 aa）
Chain B 1–585（585 aa）
Mutation：E354A Mutation：E354A No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.1；284 K；MES, PEG6000, Calcium chloride, pH 6.1, VAPOR DIFFUSION, HANGING DROP, temperature 284K
Resolution 3.00 Å R-free 0.260
1JF5 CRYSTAL STRUCTURE OF THERMOACTINOMYCES VULGARIS R-47 ALPHA-AMYLASE 2 MUTANT F286A Deposited 2001-06-20 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 1–585（585 aa）
Chain B 1–585（585 aa）
Mutation：F286A Mutation：F286A CA CALCIUM ION × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.1；298 K；PEG6000, MES, pH 6.1, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Resolution 3.20 Å R-free 0.273
1JF6 Crystal structure of thermoactinomyces vulgaris r-47 alpha-amylase mutant F286Y Deposited 2001-06-20 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 1–585（585 aa）
Chain B 1–585（585 aa）
Mutation：F286Y Mutation：F286Y CA CALCIUM ION × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.1；298 K；PEG600, MES, pH 6.1, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Resolution 3.20 Å R-free 0.282
1JI2 Improved X-ray Structure of Thermoactinomyces vulgaris R-47 alpha-Amylase 2 Deposited 2001-06-28 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 1–585（585 aa）
Chain B 1–585（585 aa）
Not recorded CA CALCIUM ION × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.1；298 K；PEG6000, MES, pH 6.1, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Resolution 2.30 Å R-free 0.224
1JIB Complex of Alpha-amylase II (TVA II) from Thermoactinomyces vulgaris R-47 with Maltotetraose Based on a Crystal Soaked with Maltohexaose. Deposited 2001-07-02 Assembly 1 Other combination Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 1–585（585 aa）
Mutation：D325N No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6；292 K；PEG6000, MES, CaCl2, pH 6.0, VAPOR DIFFUSION, HANGING DROP, temperature 292K
Resolution 3.30 Å R-free 0.304
1JIB Complex of Alpha-amylase II (TVA II) from Thermoactinomyces vulgaris R-47 with Maltotetraose Based on a Crystal Soaked with Maltohexaose. Deposited 2001-07-02 Assembly 2 Other combination Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain B 1–585（585 aa）
Mutation：D325N No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6；292 K；PEG6000, MES, CaCl2, pH 6.0, VAPOR DIFFUSION, HANGING DROP, temperature 292K
Resolution 3.30 Å R-free 0.304
1JL8 Complex of alpha-amylase II (TVA II) from Thermoactinomyces vulgaris R-47 with beta-cyclodextrin based on a co-crystallization with methyl beta-cyclodextrin Deposited 2001-07-16 Assembly 1 Other combination Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 1–585（585 aa）
Mutation：D325N No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6；292 K；MES, methyl beta-cyclodextrin, pH 6.0, VAPOR DIFFUSION, HANGING DROP, temperature 292K
Resolution 3.20 Å R-free 0.255
1JL8 Complex of alpha-amylase II (TVA II) from Thermoactinomyces vulgaris R-47 with beta-cyclodextrin based on a co-crystallization with methyl beta-cyclodextrin Deposited 2001-07-16 Assembly 2 Other combination Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain B 1–585（585 aa）
Mutation：D325N No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6；292 K；MES, methyl beta-cyclodextrin, pH 6.0, VAPOR DIFFUSION, HANGING DROP, temperature 292K
Resolution 3.20 Å R-free 0.255
1VB9 Crystal structure of Thermoactinomyces vulgaris R-47 alpha-amylase II (TVA II) complexed with transglycosylated product Deposited 2004-02-25 Assembly 1 Other combination Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 1–585（585 aa）
Mutation：D325N CA CALCIUM ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.1；293 K；PEG6000, calcium chloride, Tris, pH 6.1, VAPOR DIFFUSION, HANGING DROP, temperature 293K
Resolution 2.20 Å R-free 0.233
1VB9 Crystal structure of Thermoactinomyces vulgaris R-47 alpha-amylase II (TVA II) complexed with transglycosylated product Deposited 2004-02-25 Assembly 2 Other combination Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain B 1–585（585 aa）
Mutation：D325N CA CALCIUM ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.1；293 K；PEG6000, calcium chloride, Tris, pH 6.1, VAPOR DIFFUSION, HANGING DROP, temperature 293K
Resolution 2.20 Å R-free 0.233
1VFM Crystal structure of Thermoactinomyces vulgaris R-47 alpha-amylase 2/alpha-cyclodextrin complex Deposited 2004-04-16 Assembly 1 Other combination Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 1–585（585 aa）
Mutation：D325N/D421N CA CALCIUM ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.1；298 K；PEG20000, calcium chloride, MES, pH 6.1, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Resolution 2.90 Å R-free 0.248
1VFM Crystal structure of Thermoactinomyces vulgaris R-47 alpha-amylase 2/alpha-cyclodextrin complex Deposited 2004-04-16 Assembly 2 Other combination Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain B 1–585（585 aa）
Mutation：D325N/D421N CA CALCIUM ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.1；298 K；PEG20000, calcium chloride, MES, pH 6.1, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Resolution 2.90 Å R-free 0.248
1VFO Crystal structure of Thermoactinomyces vulgaris R-47 alpha-amylase 2/beta-cyclodextrin complex Deposited 2004-04-16 Assembly 1 Other combination Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 1–585（585 aa）
Mutation：D325N/D421N CA CALCIUM ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.1；298 K；PEG20000, calcium chloride, MES, pH 6.1, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Resolution 2.81 Å R-free 0.256
1VFO Crystal structure of Thermoactinomyces vulgaris R-47 alpha-amylase 2/beta-cyclodextrin complex Deposited 2004-04-16 Assembly 2 Other combination Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain B 1–585（585 aa）
Mutation：D325N/D421N CA CALCIUM ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.1；298 K；PEG20000, calcium chloride, MES, pH 6.1, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Resolution 2.81 Å R-free 0.256
1VFU Crystal structure of Thermoactinomyces vulgaris R-47 amylase 2/gamma-cyclodextrin complex Deposited 2004-04-19 Assembly 1 Other combination Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 1–585（585 aa）
Mutation：D325N/D421N CA CALCIUM ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.1；298 K；PEG20000, calcium chloride, MES, pH 6.1, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Resolution 3.10 Å R-free 0.284
1VFU Crystal structure of Thermoactinomyces vulgaris R-47 amylase 2/gamma-cyclodextrin complex Deposited 2004-04-19 Assembly 2 Other combination Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain B 1–585（585 aa）
Mutation：D325N/D421N CA CALCIUM ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.1；298 K；PEG20000, calcium chloride, MES, pH 6.1, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Resolution 3.10 Å R-free 0.284
1WZK Thermoactinomyces vulgaris R-47 alpha-amylase II (TVA II) mutatnt D465N Deposited 2005-03-06 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 1–585（585 aa）
Chain B 1–585（585 aa）
Mutation：D465N Mutation：D465N CA CALCIUM ION × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.1；293 K；PEG6000, calcium chloride, Tris, pH 6.1, VAPOR DIFFUSION, HANGING DROP, temperature 293K
Resolution 2.30 Å R-free 0.248
1WZL Thermoactinomyces vulgaris R-47 alpha-amylase II (TVA II) mutatnt R469L Deposited 2005-03-06 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 1–585（585 aa）
Chain B 1–585（585 aa）
Mutation：R469L Mutation：R469L CA CALCIUM ION × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.1；293 K；PEG6000, calcium chloride, Tris, pH 6.1, VAPOR DIFFUSION, HANGING DROP, temperature 293K
Resolution 2.00 Å R-free 0.229
1WZM Thermoactinomyces vulgaris R-47 alpha-amylase II (TVA II) mutatnt R469K Deposited 2005-03-06 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 1–585（585 aa）
Chain B 1–585（585 aa）
Mutation：R469K Mutation：R469K CA CALCIUM ION × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.1；293 K；PEG6000, calcium chloride, Tris, pH 6.1, VAPOR DIFFUSION, HANGING DROP, temperature 293K
Resolution 3.20 Å R-free 0.293
2D2O Structure of a complex of Thermoactinomyces vulgaris R-47 alpha-amylase 2 with maltohexaose demonstrates the important role of aromatic residues at the reducing end of the substrate binding cleft Deposited 2005-09-13 Assembly 1 Other combination Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 1–585（585 aa）
Chain B 1–585（585 aa）
Mutation：D325N Mutation：D325N CA CALCIUM ION × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.1；298 K；1.0 % (w/v) polyethylene glycol 6,000, 2.5mM calcium chloride, pH 6.1, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Resolution 2.10 Å R-free 0.217
3A6O Crystal structure of Thermoactinomyces vulgaris R-47 alpha-amylase 2/acarbose complex Deposited 2009-09-07 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 1–585（585 aa）
Not recorded CA CALCIUM ION × 1 ARE ACARBOSE DERIVED PENTASACCHARIDE × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；VAPOR DIFFUSION, HANGING DROP
Resolution 2.80 Å R-free 0.231
3A6O Crystal structure of Thermoactinomyces vulgaris R-47 alpha-amylase 2/acarbose complex Deposited 2009-09-07 Assembly 2 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain B 1–585（585 aa）
Not recorded CA CALCIUM ION × 1 ARE ACARBOSE DERIVED PENTASACCHARIDE × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；VAPOR DIFFUSION, HANGING DROP
Resolution 2.80 Å R-free 0.231

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.