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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：Q9NP77 New Search
4PDB entries
11Biological assembly
11chain/assembly records
Main Difference Dimensions in This Set
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
3O2Q Crystal structure of the human symplekin-Ssu72-CTD phosphopeptide complex Deposited 2010-07-22 Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain B 1–194（194 aa）
Mutation：C12S PO4 PHOSPHATE ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 8.5；293 K；1.6M ammonium chloride, 27% (w/v) PEG 3350, 10mM Sodium potassium tartrate, pH 8.5, VAPOR DIFFUSION, SITTING DROP, temperature 293K
Resolution 2.40 Å R-free 0.242
3O2Q Crystal structure of the human symplekin-Ssu72-CTD phosphopeptide complex Deposited 2010-07-22 Assembly 2 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain E 1–194（194 aa）
Mutation：C12S No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 8.5；293 K；1.6M ammonium chloride, 27% (w/v) PEG 3350, 10mM Sodium potassium tartrate, pH 8.5, VAPOR DIFFUSION, SITTING DROP, temperature 293K
Resolution 2.40 Å R-free 0.242
3O2S Crystal structure of the human symplekin-Ssu72 complex Deposited 2010-07-22 Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain B 1–194（194 aa）
Not recorded PO4 PHOSPHATE ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 8.5；293 K；0.32M ammonium sulfate, 26% (w/v) PEG 3350, pH 8.5, VAPOR DIFFUSION, SITTING DROP, temperature 293K
Resolution 2.50 Å R-free 0.266
4H3H Crystal structure of a ternary complex of human symplekin NTD, human Ssu72 and a RNA poymerase II CTD peptide phosphorylated at SER-7 Deposited 2012-09-13 Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain B 1–194（194 aa）
Mutation：C12S PO4 PHOSPHATE ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions pH 8.5；293 K；1.6M ammonium chloride, 27% (w/v) PEG 3350, 10mM Sodium potassium tartrate,, pH 8.5, VAPOR DIFFUSION, SITTING DROP, temperature 293K
Resolution 2.20 Å R-free 0.227
4H3H Crystal structure of a ternary complex of human symplekin NTD, human Ssu72 and a RNA poymerase II CTD peptide phosphorylated at SER-7 Deposited 2012-09-13 Assembly 2 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain E 1–194（194 aa）
Mutation：C12S No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions pH 8.5；293 K；1.6M ammonium chloride, 27% (w/v) PEG 3350, 10mM Sodium potassium tartrate,, pH 8.5, VAPOR DIFFUSION, SITTING DROP, temperature 293K
Resolution 2.20 Å R-free 0.227
4H3H Crystal structure of a ternary complex of human symplekin NTD, human Ssu72 and a RNA poymerase II CTD peptide phosphorylated at SER-7 Deposited 2012-09-13 Assembly 3 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain B 1–194（194 aa）
Mutation：C12S PO4 PHOSPHATE ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions pH 8.5；293 K；1.6M ammonium chloride, 27% (w/v) PEG 3350, 10mM Sodium potassium tartrate,, pH 8.5, VAPOR DIFFUSION, SITTING DROP, temperature 293K
Resolution 2.20 Å R-free 0.227
4H3H Crystal structure of a ternary complex of human symplekin NTD, human Ssu72 and a RNA poymerase II CTD peptide phosphorylated at SER-7 Deposited 2012-09-13 Assembly 4 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain E 1–194（194 aa）
Mutation：C12S No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions pH 8.5；293 K；1.6M ammonium chloride, 27% (w/v) PEG 3350, 10mM Sodium potassium tartrate,, pH 8.5, VAPOR DIFFUSION, SITTING DROP, temperature 293K
Resolution 2.20 Å R-free 0.227
4H3K Crystal structure of a ternary complex of human symplekin NTD, human Ssu72 and a RNA polymerase II CTD peptide phosphorylated at Ser-2, Ser-5 and Ser-7 Deposited 2012-09-13 Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain B 1–194（194 aa）
Mutation：C12S PO4 PHOSPHATE ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 8.5；293 K；1.6M ammonium chloride, 27% (w/v) PEG 3350, 10mM Sodium potassium tartrate, pH 8.5, VAPOR DIFFUSION, HANGING DROP, temperature 293K
Resolution 2.00 Å R-free 0.233
4H3K Crystal structure of a ternary complex of human symplekin NTD, human Ssu72 and a RNA polymerase II CTD peptide phosphorylated at Ser-2, Ser-5 and Ser-7 Deposited 2012-09-13 Assembly 2 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain E 1–194（194 aa）
Mutation：C12S No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 8.5；293 K；1.6M ammonium chloride, 27% (w/v) PEG 3350, 10mM Sodium potassium tartrate, pH 8.5, VAPOR DIFFUSION, HANGING DROP, temperature 293K
Resolution 2.00 Å R-free 0.233
4H3K Crystal structure of a ternary complex of human symplekin NTD, human Ssu72 and a RNA polymerase II CTD peptide phosphorylated at Ser-2, Ser-5 and Ser-7 Deposited 2012-09-13 Assembly 3 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain B 1–194（194 aa）
Mutation：C12S PO4 PHOSPHATE ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 8.5；293 K；1.6M ammonium chloride, 27% (w/v) PEG 3350, 10mM Sodium potassium tartrate, pH 8.5, VAPOR DIFFUSION, HANGING DROP, temperature 293K
Resolution 2.00 Å R-free 0.233
4H3K Crystal structure of a ternary complex of human symplekin NTD, human Ssu72 and a RNA polymerase II CTD peptide phosphorylated at Ser-2, Ser-5 and Ser-7 Deposited 2012-09-13 Assembly 4 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain E 1–194（194 aa）
Mutation：C12S No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 8.5；293 K；1.6M ammonium chloride, 27% (w/v) PEG 3350, 10mM Sodium potassium tartrate, pH 8.5, VAPOR DIFFUSION, HANGING DROP, temperature 293K
Resolution 2.00 Å R-free 0.233

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.