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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：G4XSG8 New Search
6PDB entries
6Biological assembly
6chain/assembly records
Main Difference Dimensions in This Set
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
7ML2 RNA polymerase II pre-initiation complex (PIC3) Deposited 2021-04-27 Assembly 1 Protein–DNA Heteromer；Protein × 28 PDB declaration: 30-meric（30） Consistent with all polymers
Chain O 1–240（240 aa）
Not recorded ZN ZINC ION × 17 MG MAGNESIUM ION × 1 SF4 IRON/SULFUR CLUSTER × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.40 Å
7OH9 Nucleosome with TBP and TFIIA bound at SHL -6 Deposited 2021-05-09 Assembly 1 Protein–DNA Heteromer；Protein × 11 PDB declaration: tridecameric（13） Consistent with all polymers
Chain K 1–240（240 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.00 Å
7OHA nucleosome with TBP and TFIIA bound at SHL +2 Deposited 2021-05-09 Assembly 1 Protein–DNA Heteromer；Protein × 11 PDB declaration: tridecameric（13） Consistent with all polymers
Chain K 1–240（240 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.90 Å
7OHB TBP-nucleosome complex Deposited 2021-05-10 Assembly 1 Protein–DNA Heteromer；Protein × 9 PDB declaration: undecameric（11） Consistent with all polymers
Chain K 1–240（240 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.40 Å
8CEN Yeast RNA polymerase II transcription pre-initiation complex with core Mediator Deposited 2023-02-02 Assembly 1 Protein–DNA Heteromer；Protein × 44 PDB declaration: 46-meric（46） Consistent with all polymers
Chain O 1–240（240 aa）
Not recorded SF4 IRON/SULFUR CLUSTER × 1 ZN ZINC ION × 17 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.00 Å
8CEO Yeast RNA polymerase II transcription pre-initiation complex with core Mediator and the +1 nucleosome Deposited 2023-02-02 Assembly 1 Protein–DNA Heteromer；Protein × 52 PDB declaration: 54-meric（54） Consistent with all polymers
Chain O 1–240（240 aa）
Not recorded SF4 IRON/SULFUR CLUSTER × 1 ZN ZINC ION × 17 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.60 Å

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.