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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：Q06078 New Search
41PDB entries
41Biological assembly
41chain/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
4NSX Crystal Structure of the Utp21 tandem WD Domain Deposited 2013-11-29 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 1–684（684 aa） Fragment：Tandem WD domain 1-684
Not recorded FLC CITRATE ANION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 8.6；293 K；15% PEG3350, 0.15M sodium citrate, pH 8.6, VAPOR DIFFUSION, SITTING DROP, temperature 293K
Resolution 2.10 Å R-free 0.224
5JPQ Cryo-EM structure of the 90S pre-ribosome Deposited 2016-05-04 Assembly 1 Protein–RNA Heteromer；Protein × 54 PDB declaration: 56-meric（56） Consistent with all polymers
Chain I 1–939（939 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 7.30 Å
5TZS Architecture of the yeast small subunit processome Deposited 2016-11-22 Assembly 1 Other combination Heteromer；Protein × 52 PDB declaration: 58-meric（58） Consistent with all polymers
Chain T 21–673（653 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.7
cryo-EM vitrification conditions Cryogen ETHANE；Incubated 10 seconds on the grid before blotting (blot time 2.0 seconds, blot force 0) and freezing.
Resolution 5.10 Å
5WLC The complete structure of the small subunit processome Deposited 2017-07-26 Assembly 1 Insufficient information Heteromer；Protein × 67 PDB declaration: 70-meric（70） Consistent with all polymers
Chain LT 1–939（939 aa）
Not recorded ZN ZINC ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.7
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.80 Å
5WYJ Cryo-EM structure of the 90S small subunit pre-ribosome (Dhr1-depleted, Enp1-TAP, state 1) Deposited 2017-01-13 Assembly 1 Protein–RNA Heteromer；Protein × 61 PDB declaration: 64-meric（64） Consistent with all polymers
Chain BE 1–939（939 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 8.70 Å
5WYK Cryo-EM structure of the 90S small subunit pre-ribosome (Mtr4-depleted, Enp1-TAP) Deposited 2017-01-13 Assembly 1 Protein–RNA Heteromer；Protein × 55 PDB declaration: 58-meric（58） Consistent with all polymers
Chain BE 1–939（939 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE；blot for 2 seconds before plunging
Resolution 4.50 Å
6KE6 3.4 angstrom cryo-EM structure of yeast 90S small subunit preribosome Deposited 2019-07-03 Assembly 1 Protein–RNA Heteromer；Protein × 68 PDB declaration: 71-meric（71） Consistent with all polymers
Chain BE 1–939（939 aa）
Not recorded ZN ZINC ION × 2 GTP GUANOSINE-5'-TRIPHOSPHATE × 1 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4
cryo-EM vitrification conditions Cryogen ETHANE；wait 30s and blot 2s before plunging
Resolution 3.40 Å
6LQP Cryo-EM structure of 90S small subunit preribosomes in transition states (State A) Deposited 2020-01-14 Assembly 1 Protein–RNA Heteromer；Protein × 70 PDB declaration: 73-meric（73） Consistent with all polymers
Chain BE 1–939（939 aa）
Not recorded ZN ZINC ION × 2 GTP GUANOSINE-5'-TRIPHOSPHATE × 1 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.20 Å
6LQQ Cryo-EM structure of 90S small subunit preribosomes in transition states (State B) Deposited 2020-01-14 Assembly 1 Protein–RNA Heteromer；Protein × 67 PDB declaration: 70-meric（70） Consistent with all polymers
Chain BE 1–939（939 aa）
Not recorded ZN ZINC ION × 2 GTP GUANOSINE-5'-TRIPHOSPHATE × 1 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 4.10 Å
6LQR Cryo-EM structure of 90S small subunit preribosomes in transition states (State C) Deposited 2020-01-14 Assembly 1 Protein–RNA Heteromer；Protein × 65 PDB declaration: 68-meric（68） Consistent with all polymers
Chain BE 1–939（939 aa）
Not recorded ZN ZINC ION × 2 GTP GUANOSINE-5'-TRIPHOSPHATE × 1 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 8.60 Å
6LQS Cryo-EM structure of 90S small subunit preribosomes in transition states (State D) Deposited 2020-01-14 Assembly 1 Protein–RNA Heteromer；Protein × 76 PDB declaration: 79-meric（79） Consistent with all polymers
Chain BE 1–939（939 aa）
Not recorded ZN ZINC ION × 2 GTP GUANOSINE-5'-TRIPHOSPHATE × 1 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.80 Å
6LQT Cryo-EM structure of 90S small subunit preribosomes in transition states (State E) Deposited 2020-01-14 Assembly 1 Protein–RNA Heteromer；Protein × 55 PDB declaration: 58-meric（58） Consistent with all polymers
Chain BE 1–939（939 aa）
Not recorded ZN ZINC ION × 2 GTP GUANOSINE-5'-TRIPHOSPHATE × 1 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 4.90 Å
6LQU Cryo-EM structure of 90S small subunit preribosomes in transition states (State A1) Deposited 2020-01-14 Assembly 1 Protein–RNA Heteromer；Protein × 69 PDB declaration: 72-meric（72） Consistent with all polymers
Chain BE 1–939（939 aa）
Not recorded ZN ZINC ION × 1 GTP GUANOSINE-5'-TRIPHOSPHATE × 1 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.70 Å
6LQV Cryo-EM structure of 90S small subunit preribosomes in transition states (State C1) Deposited 2020-01-14 Assembly 1 Protein–RNA Heteromer；Protein × 55 PDB declaration: 58-meric（58） Consistent with all polymers
Chain BE 1–939（939 aa）
Not recorded ZN ZINC ION × 1 GTP GUANOSINE-5'-TRIPHOSPHATE × 1 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 4.80 Å
6ND4 Conformational switches control early maturation of the eukaryotic small ribosomal subunit Deposited 2018-12-13 Assembly 1 Protein–RNA Heteromer；Protein × 27 PDB declaration: 30-meric（30） Consistent with all polymers
Chain T 1–939（939 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.7
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 4.30 Å
6ZQA Cryo-EM structure of the 90S pre-ribosome from Saccharomyces cerevisiae, state A (Poly-Ala) Deposited 2020-07-09 Assembly 1 Protein–RNA Heteromer；Protein × 57 PDB declaration: 60-meric（60） Consistent with all polymers
Chain UU 1–939（939 aa）
Not recorded ZN ZINC ION × 2 MG MAGNESIUM ION × 2 GTP GUANOSINE-5'-TRIPHOSPHATE × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 4.40 Å
6ZQB Cryo-EM structure of the 90S pre-ribosome from Saccharomyces cerevisiae, state B2 Deposited 2020-07-09 Assembly 1 Protein–RNA Heteromer；Protein × 68 PDB declaration: 71-meric（71） Consistent with all polymers
Chain UU 1–939（939 aa）
Not recorded ZN ZINC ION × 2 GTP GUANOSINE-5'-TRIPHOSPHATE × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.90 Å
6ZQC Cryo-EM structure of the 90S pre-ribosome from Saccharomyces cerevisiae, state Pre-A1 Deposited 2020-07-09 Assembly 1 Protein–RNA Heteromer；Protein × 68 PDB declaration: 71-meric（71） Consistent with all polymers
Chain UU 1–939（939 aa）
Not recorded ZN ZINC ION × 2 MG MAGNESIUM ION × 2 GTP GUANOSINE-5'-TRIPHOSPHATE × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.80 Å
6ZQD Cryo-EM structure of the 90S pre-ribosome from Saccharomyces cerevisiae, state Post-A1 Deposited 2020-07-09 Assembly 1 Protein–RNA Heteromer；Protein × 63 PDB declaration: 66-meric（66） Consistent with all polymers
Chain UU 1–939（939 aa）
Not recorded ZN ZINC ION × 2 GTP GUANOSINE-5'-TRIPHOSPHATE × 1 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.80 Å
6ZQE Cryo-EM structure of the 90S pre-ribosome from Saccharomyces cerevisiae, state Dis-A (Poly-Ala) Deposited 2020-07-09 Assembly 1 Protein–RNA Heteromer；Protein × 59 PDB declaration: 62-meric（62） Consistent with all polymers
Chain UU 1–939（939 aa）
Not recorded ZN ZINC ION × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 7.10 Å
6ZQF Cryo-EM structure of the 90S pre-ribosome from Saccharomyces cerevisiae, state Dis-B (Poly-Ala) Deposited 2020-07-09 Assembly 1 Protein–RNA Heteromer；Protein × 39 PDB declaration: 42-meric（42） Consistent with all polymers
Chain UU 1–939（939 aa）
Not recorded ZN ZINC ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 4.90 Å
7AJT Cryo-EM structure of the 90S-exosome super-complex (state Pre-A1-exosome) Deposited 2020-09-29 Assembly 1 Protein–RNA Heteromer；Protein × 79 PDB declaration: 83-meric（83） Consistent with all polymers
Chain UU 1–939（939 aa）
Not recorded ZN ZINC ION × 3 MG MAGNESIUM ION × 3 GTP GUANOSINE-5'-TRIPHOSPHATE × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 4.60 Å
7AJU Cryo-EM structure of the 90S-exosome super-complex (state Post-A1-exosome) Deposited 2020-09-29 Assembly 1 Protein–RNA Heteromer；Protein × 74 PDB declaration: 78-meric（78） Consistent with all polymers
Chain UU 1–939（939 aa）
Not recorded ZN ZINC ION × 3 GTP GUANOSINE-5'-TRIPHOSPHATE × 1 MG MAGNESIUM ION × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.80 Å
7D4I Cryo-EM structure of 90S small ribosomal precursors complex with the DEAH-box RNA helicase Dhr1 (State F) Deposited 2020-09-24 Assembly 1 Protein–RNA Heteromer；Protein × 79 PDB declaration: 82-meric（82） Consistent with all polymers
Chain BE 1–939（939 aa）
Not recorded ZN ZINC ION × 2 GTP GUANOSINE-5'-TRIPHOSPHATE × 1 MG MAGNESIUM ION × 1 ADP ADENOSINE-5'-DIPHOSPHATE × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 4.00 Å
7D5S Cryo-EM structure of 90S preribosome with inactive Utp24 (state A2) Deposited 2020-09-28 Assembly 1 Protein–RNA Heteromer；Protein × 55 PDB declaration: 58-meric（58） Consistent with all polymers
Chain BE 1–939（939 aa）
Not recorded ZN ZINC ION × 1 GTP GUANOSINE-5'-TRIPHOSPHATE × 1 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 4.60 Å
7D5T Cryo-EM structure of 90S preribosome with inactive Utp24 (state F1) Deposited 2020-09-28 Assembly 1 Protein–RNA Heteromer；Protein × 52 PDB declaration: 55-meric（55） Consistent with all polymers
Chain BE 1–939（939 aa）
Not recorded ZN ZINC ION × 2 GTP GUANOSINE-5'-TRIPHOSPHATE × 1 MG MAGNESIUM ION × 1 ADP ADENOSINE-5'-DIPHOSPHATE × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 6.00 Å
7D63 Cryo-EM structure of 90S preribosome with inactive Utp24 (state C) Deposited 2020-09-29 Assembly 1 Protein–RNA Heteromer；Protein × 68 PDB declaration: 71-meric（71） Consistent with all polymers
Chain BE 1–939（939 aa）
Not recorded ZN ZINC ION × 2 GTP GUANOSINE-5'-TRIPHOSPHATE × 1 MG MAGNESIUM ION × 1 ADP ADENOSINE-5'-DIPHOSPHATE × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 12.30 Å
7SUK Structure of Bfr2-Lcp5 Complex Observed in the Small Subunit Processome Isolated from R2TP-depleted Yeast Cells Deposited 2021-11-17 Assembly 1 Protein–RNA Heteromer；Protein × 67 PDB declaration: 70-meric（70） Consistent with all polymers
Chain LT 19–939（921 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.7
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.99 Å
9G33 Stalled 90S - Utp23-Krr1-deltaC3 Deposited 2024-07-11 Assembly 1 Protein–RNA Heteromer；Protein × 62 PDB declaration: 65-meric（65） Consistent with all polymers
Chain UU 1–939（939 aa）
Not recorded GTP GUANOSINE-5'-TRIPHOSPHATE × 1 ZN ZINC ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.05 Å
9N6V SSU processome maturation and disassembly, State A Deposited 2025-02-05 Assembly 1 Protein–RNA Heteromer；Protein × 69 PDB declaration: 72-meric（72） Consistent with all polymers
Chain LT 1–939（939 aa）
Not recorded MG MAGNESIUM ION × 25 ATP ADENOSINE-5'-TRIPHOSPHATE × 1 ZN ZINC ION × 2 GTP GUANOSINE-5'-TRIPHOSPHATE × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.16 Å
9N6W SSU processome maturation and disassembly, State A* Deposited 2025-02-05 Assembly 1 Protein–RNA Heteromer；Protein × 69 PDB declaration: 72-meric（72） Consistent with all polymers
Chain LT 1–939（939 aa）
Not recorded MG MAGNESIUM ION × 25 ATP ADENOSINE-5'-TRIPHOSPHATE × 1 ZN ZINC ION × 2 GTP GUANOSINE-5'-TRIPHOSPHATE × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.05 Å
9N6X SSU processome maturation and disassembly, State B Deposited 2025-02-05 Assembly 1 Protein–RNA Heteromer；Protein × 69 PDB declaration: 72-meric（72） Consistent with all polymers
Chain LT 1–939（939 aa）
Not recorded MG MAGNESIUM ION × 34 ATP ADENOSINE-5'-TRIPHOSPHATE × 1 ZN ZINC ION × 2 GTP GUANOSINE-5'-TRIPHOSPHATE × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.71 Å
9N6Y SSU processome maturation and disassembly, State C Deposited 2025-02-05 Assembly 1 Protein–RNA Heteromer；Protein × 70 PDB declaration: 73-meric（73） Consistent with all polymers
Chain LT 1–939（939 aa）
Not recorded MG MAGNESIUM ION × 34 ATP ADENOSINE-5'-TRIPHOSPHATE × 1 ZN ZINC ION × 2 GTP GUANOSINE-5'-TRIPHOSPHATE × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.65 Å
9N6Z SSU processome maturation and disassembly, State D Deposited 2025-02-05 Assembly 1 Protein–RNA Heteromer；Protein × 69 PDB declaration: 72-meric（72） Consistent with all polymers
Chain LT 1–939（939 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 4.74 Å
9N70 SSU processome maturation and disassembly, State E Deposited 2025-02-05 Assembly 1 Protein–RNA Heteromer；Protein × 69 PDB declaration: 72-meric（72） Consistent with all polymers
Chain LT 1–939（939 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 5.17 Å
9N72 SSU processome maturation and disassembly, State F Deposited 2025-02-05 Assembly 1 Protein–RNA Heteromer；Protein × 70 PDB declaration: 73-meric（73） Consistent with all polymers
Chain LT 1–939（939 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 5.94 Å
9N73 SSU processome maturation and disassembly, State G Deposited 2025-02-05 Assembly 1 Protein–RNA Heteromer；Protein × 71 PDB declaration: 74-meric（74） Consistent with all polymers
Chain LT 1–939（939 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 5.96 Å
9N74 SSU processome maturation and disassembly, State H Deposited 2025-02-05 Assembly 1 Protein–RNA Heteromer；Protein × 68 PDB declaration: 71-meric（71） Consistent with all polymers
Chain LT 1–939（939 aa）
Not recorded MG MAGNESIUM ION × 39 ATP ADENOSINE-5'-TRIPHOSPHATE × 1 ZN ZINC ION × 3 ADP ADENOSINE-5'-DIPHOSPHATE × 1 GTP GUANOSINE-5'-TRIPHOSPHATE × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.65 Å
9N75 SSU processome maturation and disassembly, State I Deposited 2025-02-05 Assembly 1 Protein–RNA Heteromer；Protein × 65 PDB declaration: 68-meric（68） Consistent with all polymers
Chain LT 1–939（939 aa）
Not recorded MG MAGNESIUM ION × 59 ATP ADENOSINE-5'-TRIPHOSPHATE × 1 ZN ZINC ION × 3 ADP ADENOSINE-5'-DIPHOSPHATE × 1 GTP GUANOSINE-5'-TRIPHOSPHATE × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.01 Å
9N76 SSU processome maturation and disassembly, State J Deposited 2025-02-05 Assembly 1 Protein–RNA Heteromer；Protein × 64 PDB declaration: 67-meric（67） Consistent with all polymers
Chain LT 1–939（939 aa）
Not recorded MG MAGNESIUM ION × 38 ATP ADENOSINE-5'-TRIPHOSPHATE × 1 ZN ZINC ION × 2 ADP ADENOSINE-5'-DIPHOSPHATE × 1 GTP GUANOSINE-5'-TRIPHOSPHATE × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 4.20 Å
9N77 SSU processome maturation and disassembly, State K Deposited 2025-02-05 Assembly 1 Protein–RNA Heteromer；Protein × 61 PDB declaration: 64-meric（64） Consistent with all polymers
Chain LT 1–939（939 aa）
Not recorded MG MAGNESIUM ION × 48 ZN ZINC ION × 2 ADP ADENOSINE-5'-DIPHOSPHATE × 1 GTP GUANOSINE-5'-TRIPHOSPHATE × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.94 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.