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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：Q07381 New Search
12PDB entries
15Biological assembly
19chain/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
5IW7 Crystal structure of yeast Tsr1, a pre-40S ribosome synthesis factor Deposited 2016-03-22 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 46–409（364 aa）
Chain A 477–788（312 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 6；291 K；8-14% w/v PEG 3350 0.18-0.30 M sodium malonate pH 6.0
Resolution 3.60 Å R-free 0.295
5IW7 Crystal structure of yeast Tsr1, a pre-40S ribosome synthesis factor Deposited 2016-03-22 Assembly 2 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain B 46–409（364 aa）
Chain B 477–788（312 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 6；291 K；8-14% w/v PEG 3350 0.18-0.30 M sodium malonate pH 6.0
Resolution 3.60 Å R-free 0.295
5IW7 Crystal structure of yeast Tsr1, a pre-40S ribosome synthesis factor Deposited 2016-03-22 Assembly 3 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain C 46–409（364 aa）
Chain C 477–788（312 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 6；291 K；8-14% w/v PEG 3350 0.18-0.30 M sodium malonate pH 6.0
Resolution 3.60 Å R-free 0.295
5IW7 Crystal structure of yeast Tsr1, a pre-40S ribosome synthesis factor Deposited 2016-03-22 Assembly 4 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain D 46–409（364 aa）
Chain D 477–788（312 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 6；291 K；8-14% w/v PEG 3350 0.18-0.30 M sodium malonate pH 6.0
Resolution 3.60 Å R-free 0.295
5WWN Crystal structure of Tsr1 Deposited 2017-01-03 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 80–788（709 aa） Fragment：UNP residues 80-788
Not recorded SO4 SULFATE ION × 10 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；293 K；0.1M sodium chloride, 0.08M BIS-TRIS pH 5.5, 0.02M BIS-TRIS pH 6.5, 1.6M ammonium sulfate
Resolution 2.81 Å R-free 0.274
6EML Cryo-EM structure of a late pre-40S ribosomal subunit from Saccharomyces cerevisiae Deposited 2017-10-02 Assembly 1 Protein–RNA Heteromer；Protein × 31 PDB declaration: 31-meric（31） Consistent with protein count
Chain t 1–788（788 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.60 Å
6FAI Structure of a eukaryotic cytoplasmic pre-40S ribosomal subunit Deposited 2017-12-15 Assembly 1 Protein–RNA Heteromer；Protein × 35 PDB declaration: 36-meric（36） Consistent with all polymers
Chain k 1–788（788 aa）
Not recorded ZN ZINC ION × 2 MG MAGNESIUM ION × 46 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4
cryo-EM vitrification conditions Cryogen ETHANE-PROPANE
Resolution 3.40 Å
6RBD State 1 of yeast Tsr1-TAP Rps20-Deltaloop pre-40S particles Deposited 2019-04-10 Assembly 1 Protein–RNA Heteromer；Protein × 34 PDB declaration: 35-meric（35） Consistent with all polymers
Chain k 1–788（788 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE；blot 1.7-1.9 seconds before plunging
Resolution 3.47 Å
6WDR Subunit joining exposes nascent pre-40S rRNA for processing and quality control Deposited 2020-04-01 Assembly 1 Protein–RNA Heteromer；Protein × 31 PDB declaration: 32-meric（32） Consistent with all polymers
Chain k 1–788（788 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 6.8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.70 Å
6Y7C Early cytoplasmic yeast pre-40S particle (purified with Tsr1 as bait) Deposited 2020-02-28 Assembly 1 Protein–RNA Heteromer；Protein × 33 PDB declaration: 34-meric（34） Consistent with all polymers
Chain t 1–788（788 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.80 Å
7WTP Cryo-EM structure of a yeast pre-40S ribosomal subunit - State Tsr1-2 (with Rps2) Deposited 2022-02-05 Assembly 1 Protein–RNA Heteromer；Protein × 18 PDB declaration: nonadecameric（19） Consistent with all polymers
Chain CC 1–788（788 aa）
Not recorded ZN ZINC ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.80 Å
7WTQ Cryo-EM structure of a yeast pre-40S ribosomal subunit - State Tsr1-2 (without Rps2) Deposited 2022-02-05 Assembly 1 Protein–RNA Heteromer；Protein × 17 PDB declaration: octadecameric（18） Consistent with all polymers
Chain CC 1–788（788 aa）
Not recorded ZN ZINC ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.70 Å
7WTR Cryo-EM structure of a yeast pre-40S ribosomal subunit - State Tsr1-3 Deposited 2022-02-05 Assembly 1 Protein–RNA Heteromer；Protein × 18 PDB declaration: nonadecameric（19） Consistent with all polymers
Chain CC 1–788（788 aa）
Not recorded ZN ZINC ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.50 Å
8C00 Enp1TAP-S21_A population of yeast small ribosomal subunit precursors depleted of rpS21/eS21 Deposited 2022-12-15 Assembly 1 Protein–RNA Heteromer；Protein × 25 PDB declaration: 26-meric（26） Consistent with all polymers
Chain t 1–788（788 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.90 Å
8C01 Enp1TAP_A population of yeast small ribosomal subunit precursors Deposited 2022-12-15 Assembly 1 Protein–RNA Heteromer；Protein × 30 PDB declaration: 31-meric（31） Consistent with all polymers
Chain t 1–788（788 aa）
Not recorded ZN ZINC ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.70 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.