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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：Q9Y6D9 New Search
5PDB entries
6Biological assembly
14chain/assembly records
Main Difference Dimensions in This Set
Different construct Different mutation/modification Different assembly state 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
1GO4 Crystal structure of Mad1-Mad2 reveals a conserved Mad2 binding motif in Mad1 and Cdc20. Deposited 2001-10-17 Assembly 1 Protein heterocomplex Heteromer；Protein × 8 PDB declaration: octameric（8） Consistent with protein count
Chain E 393–492（100 aa） Fragment：RESIDUES 485-584
Chain F 393–492（100 aa） Fragment：RESIDUES 485-584
Chain G 393–492（100 aa） Fragment：RESIDUES 485-584
Chain H 393–492（100 aa） Fragment：RESIDUES 485-584
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 5.2；PROTEIN CONCENTRATION 7.5 MG/ML HANGING DROP METHOD, WELL=100 MM AMMONIUM SULPHATE, 100 MM AMMONIUM CITRATE PH 5.2, 10 MM DTT
Resolution 2.05 Å R-free 0.268
4DZO Structure of Human Mad1 C-terminal Domain Reveals Its Involvement in Kinetochore Targeting Deposited 2012-03-01 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 597–718（122 aa） Fragment：C-terminal domain, UNP residues 597-718
Chain B 597–718（122 aa） Fragment：C-terminal domain, UNP residues 597-718
Non-standard monomer：Yes (specific site not provided by mmCIF) Non-standard monomer：Yes (specific site not provided by mmCIF) No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions hanging-drop vapor diffusion；pH 6.2；293 K；20 mM Tris, 100 mM KCl, 1 mM TCEP, 26% (w/v) PEG1500, 0.1 M Na Cacodylate, pH 6.2, 1mM reduced L-Glutathione;, hanging-drop vapor diffusion, temperature 293K
Resolution 1.76 Å R-free 0.197
7B1F Orthorhombic P212121 Structure of Human Mad1 C-terminal Domain in Complex with Phosphorylated Bub1 CD1 Domain Deposited 2020-11-24 Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain A 597–718（122 aa）
Chain B 597–718（122 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；293 K；20% PEG 4000, 0.1 M Hepes pH 7.5, 10% isopropanol
Resolution 1.75 Å R-free 0.287
7B1H Monoclinic P21 Structure of Human Mad1 C-terminal Domain in Complex with Phosphorylated Bub1 CD1 Domain Deposited 2020-11-24 Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain A 597–718（122 aa）
Chain B 597–718（122 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 7.5；293 K；8% Isopropanol, 20% PEG 4000, 0.1 M Na HEPES, pH 7.5
Resolution 2.40 Å R-free 0.281
7B1H Monoclinic P21 Structure of Human Mad1 C-terminal Domain in Complex with Phosphorylated Bub1 CD1 Domain Deposited 2020-11-24 Assembly 2 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain E 597–718（122 aa）
Chain F 597–718（122 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 7.5；293 K；8% Isopropanol, 20% PEG 4000, 0.1 M Na HEPES, pH 7.5
Resolution 2.40 Å R-free 0.281
7B1J Orthorhombic P21212 Structure of Human Mad1 C-terminal Domain in Complex with Phosphorylated Bub1 CD1 Domain Deposited 2020-11-25 Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain A 597–718（122 aa）
Chain B 597–718（122 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；293 K；10% Isopropanol, 0.1 M Na HEPES, pH 7.5, 20% PEG 4000
Resolution 2.90 Å R-free 0.296

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.