← 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：P31025 New Search
4PDB entries
7Biological assembly
8chain/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
1XKI Crystal structure of human tear lipocalin/von Ebners gland protein Deposited 2004-09-29 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 23–176（154 aa）
Mutation：C101S, D158A ZN ZINC ION × 3 CL CHLORIDE ION × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；285 K；Tris/HCl, Zn-acetate, ethylene glycol, pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 285K
Resolution 1.80 Å R-free 0.254
3EYC New crystal structure of human tear lipocalin in complex with 1,4-butanediol in space group P21 Deposited 2008-10-20 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 23–176（154 aa） Fragment：residues 5-166
Mutation：C101S, D158A BU1 1,4-BUTANEDIOL × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 8；293 K；27% PEG3350, 0.8% 1.4-Butanediol, 200mM NaCl, 100mM Tris/HCl, pH 8.0, VAPOR DIFFUSION, HANGING DROP, temperature 293K
Resolution 2.60 Å R-free 0.274
3EYC New crystal structure of human tear lipocalin in complex with 1,4-butanediol in space group P21 Deposited 2008-10-20 Assembly 2 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain B 23–176（154 aa） Fragment：residues 5-166
Mutation：C101S, D158A BU1 1,4-BUTANEDIOL × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 8；293 K；27% PEG3350, 0.8% 1.4-Butanediol, 200mM NaCl, 100mM Tris/HCl, pH 8.0, VAPOR DIFFUSION, HANGING DROP, temperature 293K
Resolution 2.60 Å R-free 0.274
3EYC New crystal structure of human tear lipocalin in complex with 1,4-butanediol in space group P21 Deposited 2008-10-20 Assembly 3 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain C 23–176（154 aa） Fragment：residues 5-166
Mutation：C101S, D158A BU1 1,4-BUTANEDIOL × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 8；293 K；27% PEG3350, 0.8% 1.4-Butanediol, 200mM NaCl, 100mM Tris/HCl, pH 8.0, VAPOR DIFFUSION, HANGING DROP, temperature 293K
Resolution 2.60 Å R-free 0.274
3EYC New crystal structure of human tear lipocalin in complex with 1,4-butanediol in space group P21 Deposited 2008-10-20 Assembly 4 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain D 23–176（154 aa） Fragment：residues 5-166
Mutation：C101S, D158A BU1 1,4-BUTANEDIOL × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 8；293 K；27% PEG3350, 0.8% 1.4-Butanediol, 200mM NaCl, 100mM Tris/HCl, pH 8.0, VAPOR DIFFUSION, HANGING DROP, temperature 293K
Resolution 2.60 Å R-free 0.274
4QAF Crystal structure of an engineered lipocalin (Anticalin) in complex with VEGF(8-109) Deposited 2014-05-04 Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain A 23–174（152 aa） Fragment：UNP residues 23-174
Chain B 23–174（152 aa） Fragment：UNP residues 23-174
Mutation：;R26V,E27G,F28A,P29L,E30R,M31C,N32L,L33A,E34G,T37I,M39T,L56H,S58K,C61S,E69S,K76I,D80I,K83I,Y87K,I89G,C101S,E104C,H106S,K108V,R111P,K114W,C153S ; Mutation：;R26V,E27G,F28A,P29L,E30R,M31C,N32L,L33A,E34G,T37I,M39T,L56H,S58K,C61S,E69S,K76I,D80I,K83I,Y87K,I89G,C101S,E104C,H106S,K108V,R111P,K114W,C153S ; OMA 10-{(1R,2R)-2-[(2E)-hex-2-en-1-yl]cyclopropyl}decanoic acid × 2 SO4 SULFATE ION × 3 ACT ACETATE ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 3.5；293 K；1 M sodium chloride, 0.2 M lithium sulfate, 7.5% w/v dextran sulfate, pH 3.5, VAPOR DIFFUSION, HANGING DROP, temperature 293K
Resolution 1.80 Å R-free 0.242
5T43 NMR Structure of Apo-form Human Tear Lipocalin Deposited 2016-08-28 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 19–176（158 aa）
Not recorded No recorded non-water small molecule SOLUTION NMR
NMR measurement conditions pH 7.4；310 K；Ionic strength (raw mmCIF value) 50；Pressure 1
NMR sample composition 1.0 mM [U-99% 13C; U-99% 15N] Lipocalin, 90 % H2O, 10 % D2O, 50 mM sodium phosphate, 0.04 % sodium azide, 90% H2O/10% D2O | 90% H2O/10% D2O
Resolution not provided

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.