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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：P01051 New Search
16PDB entries
20Biological assembly
21chain/assembly records
Main Difference Dimensions in This Set
Different construct Different mutation/modification Different assembly state Different ligand/ion Different experimental method 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
1ACB CRYSTAL AND MOLECULAR STRUCTURE OF THE BOVINE ALPHA-CHYMOTRYPSIN-EGLIN C COMPLEX AT 2.0 ANGSTROMS RESOLUTION Deposited 1991-11-08 Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain I 1–70（70 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION mmCIF provides none of the parsed conditions Resolution 2.00 Å
1CSE THE HIGH-RESOLUTION X-RAY CRYSTAL STRUCTURE OF THE COMPLEX FORMED BETWEEN SUBTILISIN CARLSBERG AND EGLIN C, AN ELASTASE INHIBITOR FROM THE LEECH HIRUDO MEDICINALIS. STRUCTURAL ANALYSIS, SUBTILISIN STRUCTURE AND INTERFACE GEOMETRY Deposited 1988-06-03 Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain I 1–70（70 aa）
Not recorded CA CALCIUM ION × 2 X-RAY DIFFRACTION mmCIF provides none of the parsed conditions Resolution 1.20 Å
1EGL THE SOLUTION STRUCTURE OF EGLIN C BASED ON MEASUREMENTS OF MANY NOES AND COUPLING CONSTANTS AND ITS COMPARISON WITH X-RAY STRUCTURES Deposited 1993-09-03 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 1–70（70 aa）
Not recorded No recorded non-water small molecule SOLUTION NMR mmCIF provides none of the parsed conditions Resolution not provided
1EGP PROTEINASE INHIBITOR EGLIN C WITH HYDROLYSED REACTIVE CENTER Deposited 1995-09-01 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 1–45（45 aa）
Chain B 46–70（25 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION mmCIF provides none of the parsed conditions Resolution 2.00 Å
1MEE THE COMPLEX BETWEEN THE SUBTILISIN FROM A MESOPHILIC BACTERIUM AND THE LEECH INHIBITOR EGLIN-C Deposited 1991-04-15 Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain I 7–70（64 aa）
Not recorded CA CALCIUM ION × 2 X-RAY DIFFRACTION mmCIF provides none of the parsed conditions Resolution 2.00 Å
1SBN REFINED CRYSTAL STRUCTURES OF SUBTILISIN NOVO IN COMPLEX WITH WILD-TYPE AND TWO MUTANT EGLINS. COMPARISON WITH OTHER SERINE PROTEINASE INHIBITOR COMPLEXES Deposited 1991-12-20 Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain I 1–70（70 aa）
Not recorded CA CALCIUM ION × 2 X-RAY DIFFRACTION mmCIF provides none of the parsed conditions Resolution 2.10 Å
1SIB REFINED CRYSTAL STRUCTURES OF SUBTILISIN NOVO IN COMPLEX WITH WILD-TYPE AND TWO MUTANT EGLINS. COMPARISON WITH OTHER SERINE PROTEINASE INHIBITOR COMPLEXES Deposited 1993-08-02 Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain I 1–70（70 aa）
Not recorded CA CALCIUM ION × 2 X-RAY DIFFRACTION mmCIF provides none of the parsed conditions Resolution 2.40 Å
1TEC CRYSTALLOGRAPHIC REFINEMENT BY INCORPORATION OF MOLECULAR DYNAMICS. THE THERMOSTABLE SERINE PROTEASE THERMITASE COMPLEXED WITH EGLIN-C Deposited 1989-05-24 Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain I 1–70（70 aa）
Not recorded CA CALCIUM ION × 2 NA SODIUM ION × 1 X-RAY DIFFRACTION mmCIF provides none of the parsed conditions Resolution 2.20 Å
2SEC STRUCTURAL COMPARISON OF TWO SERINE PROTEINASE-PROTEIN INHIBITOR COMPLEXES. EGLIN-C-SUBTILISIN CARLSBERG AND CI-2-SUBTILISIN NOVO Deposited 1988-09-05 Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain I 1–70（70 aa）
Not recorded CA CALCIUM ION × 3 X-RAY DIFFRACTION mmCIF provides none of the parsed conditions Resolution 1.80 Å
2TEC MOLECULAR DYNAMICS REFINEMENT OF A THERMITASE-EGLIN-C COMPLEX AT 1.98 ANGSTROMS RESOLUTION AND COMPARISON OF TWO CRYSTAL FORMS THAT DIFFER IN CALCIUM CONTENT Deposited 1990-10-26 Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain I 1–70（70 aa）
Not recorded CA CALCIUM ION × 3 X-RAY DIFFRACTION mmCIF provides none of the parsed conditions Resolution 1.98 Å
3TEC CALCIUM BINDING TO THERMITASE. CRYSTALLOGRAPHIC STUDIES OF THERMITASE AT 0, 5 AND 100 MM CALCIUM Deposited 1990-10-26 Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain I 1–70（70 aa）
Not recorded CA CALCIUM ION × 3 X-RAY DIFFRACTION mmCIF provides none of the parsed conditions Resolution 2.00 Å
4B1T Structure of the factor Xa-like trypsin variant triple-Ala (TA) in complex with eglin C Deposited 2012-07-12 Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain B 1–70（70 aa） Fragment：RESIDUES 1-70
Mutation：YES CA CALCIUM ION × 1 GOL GLYCEROL × 4 EDO 1,2-ETHANEDIOL × 3 X-RAY DIFFRACTION
X-ray crystallization conditions 283 K；18% (W/V) PEG 10,000, 20% (V/V) GLYCEROL, 100 MM TRIS-HCL PH 8.5 AND 100 MM NACL AT 283 K
Resolution 1.78 Å R-free 0.219
4B1T Structure of the factor Xa-like trypsin variant triple-Ala (TA) in complex with eglin C Deposited 2012-07-12 Assembly 2 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain D 1–70（70 aa） Fragment：RESIDUES 1-70
Mutation：YES CA CALCIUM ION × 1 GOL GLYCEROL × 4 EDO 1,2-ETHANEDIOL × 1 X-RAY DIFFRACTION
X-ray crystallization conditions 283 K；18% (W/V) PEG 10,000, 20% (V/V) GLYCEROL, 100 MM TRIS-HCL PH 8.5 AND 100 MM NACL AT 283 K
Resolution 1.78 Å R-free 0.219
4B2A Structure of the factor Xa-like trypsin variant triple-Ala (TGA) in complex with eglin C Deposited 2012-07-13 Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain B 5–70（66 aa） Fragment：RESIDUES 5-70
Mutation：YES CA CALCIUM ION × 1 GOL GLYCEROL × 2 EDO 1,2-ETHANEDIOL × 1 X-RAY DIFFRACTION
X-ray crystallization conditions 283 K；18% (W/V) PEG 10,000, 20% (V/V) GLYCEROL, 100 MM TRIS-HCL PH 8.5 AND 100 MM NACL AT 283 K
Resolution 1.89 Å R-free 0.259
4B2A Structure of the factor Xa-like trypsin variant triple-Ala (TGA) in complex with eglin C Deposited 2012-07-13 Assembly 2 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain D 5–70（66 aa） Fragment：RESIDUES 5-70
Mutation：YES CA CALCIUM ION × 1 GOL GLYCEROL × 1 X-RAY DIFFRACTION
X-ray crystallization conditions 283 K；18% (W/V) PEG 10,000, 20% (V/V) GLYCEROL, 100 MM TRIS-HCL PH 8.5 AND 100 MM NACL AT 283 K
Resolution 1.89 Å R-free 0.259
4B2B Structure of the factor Xa-like trypsin variant triple-Ala (TGPA) in complex with eglin C Deposited 2012-07-13 Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain B 1–70（70 aa）
Mutation：YES CA CALCIUM ION × 1 GOL GLYCEROL × 3 EDO 1,2-ETHANEDIOL × 2 CL CHLORIDE ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions 283 K；18% (W/V) PEG 10,000, 20% (V/V) GLYCEROL, 100 MM TRIS-HCL PH 9.0 AND 100 MM NACL AT 283 K
Resolution 1.36 Å R-free 0.204
4B2B Structure of the factor Xa-like trypsin variant triple-Ala (TGPA) in complex with eglin C Deposited 2012-07-13 Assembly 2 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain D 1–70（70 aa）
Mutation：YES CA CALCIUM ION × 1 GOL GLYCEROL × 6 EDO 1,2-ETHANEDIOL × 2 CL CHLORIDE ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions 283 K；18% (W/V) PEG 10,000, 20% (V/V) GLYCEROL, 100 MM TRIS-HCL PH 9.0 AND 100 MM NACL AT 283 K
Resolution 1.36 Å R-free 0.204
4B2C Structure of the factor Xa-like trypsin variant triple-Ala (TPA) in complex with eglin C Deposited 2012-07-13 Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain B 1–70（70 aa）
Mutation：YES CA CALCIUM ION × 1 GOL GLYCEROL × 11 CL CHLORIDE ION × 1 EDO 1,2-ETHANEDIOL × 1 X-RAY DIFFRACTION
X-ray crystallization conditions 283 K；18% (W/V) PEG 10,000, 20% (V/V) GLYCEROL, 100 MM TRIS-HCL PH 8.5 AND 100 MM NACL AT 283 K
Resolution 1.43 Å R-free 0.182
4B2C Structure of the factor Xa-like trypsin variant triple-Ala (TPA) in complex with eglin C Deposited 2012-07-13 Assembly 2 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain D 1–70（70 aa）
Mutation：YES CA CALCIUM ION × 1 GOL GLYCEROL × 9 CL CHLORIDE ION × 1 EDO 1,2-ETHANEDIOL × 3 X-RAY DIFFRACTION
X-ray crystallization conditions 283 K；18% (W/V) PEG 10,000, 20% (V/V) GLYCEROL, 100 MM TRIS-HCL PH 8.5 AND 100 MM NACL AT 283 K
Resolution 1.43 Å R-free 0.182
4H4F Crystal structure of human chymotrypsin C (CTRC) bound to inhibitor eglin c from Hirudo medicinalis Deposited 2012-09-17 Assembly 1 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain B 8–70（63 aa） Fragment：Eglin c (unp residues 8-70)
Not recorded PO4 PHOSPHATE ION × 3 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 8.5；298 K；0.2 M lithium sulfate monohydrate, 0.1 M TRIS hydrochloride and 30 % (w/v) PEG 4000 , pH 8.5, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Resolution 1.90 Å R-free 0.210

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.