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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：P41567 New Search
15PDB entries
15Biological assembly
15chain/assembly records
Main Difference Dimensions in This Set
Different construct 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
2IF1 HUMAN TRANSLATION INITIATION FACTOR EIF1, NMR, 29 STRUCTURES Deposited 1998-08-04 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 1–113（113 aa）
Not recorded No recorded non-water small molecule SOLUTION NMR
NMR measurement conditions pH 6；300 K；Ionic strength (raw mmCIF value) 400 mM；Pressure 1
Resolution not provided
4KZX Rabbit 40S ribosomal subunit in complex with eIF1. Deposited 2013-05-30 Assembly 1 Protein–RNA Heteromer；Protein × 34 PDB declaration: 35-meric（35） Consistent with all polymers
Chain l 1–113（113 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION；pH 8.5；292 K；0.1M Ammonium acetate, 0.05M Tris-HCl pH 8.5, 2.5% PEG-20K, 4-6% MPD, 5.0mM Mg acetate, 2.0mM TCEP, vapor diffusion, temperature 292K
Resolution 7.81 Å R-free 0.347
4KZY Rabbit 40S ribosomal subunit in complex with eIF1 and eIF1A. Deposited 2013-05-30 Assembly 1 Protein–RNA Heteromer；Protein × 35 PDB declaration: 36-meric（36） Consistent with all polymers
Chain l 1–113（113 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION；pH 8.5；292 K；0.1M Ammonium acetate, 0.05M Tris-HCl pH 8.5, 2.5% PEG-20K, 4-6% MPD, 5.0mM Mg acetate, 2.0mM TCEP, vapor diffusion, temperature 292K
Resolution 7.01 Å R-free 0.348
6YBW Structure of a human 48S translational initiation complex - 40S body Deposited 2020-03-18 Assembly 1 Protein–RNA Heteromer；Protein × 24 PDB declaration: 26-meric（26） Consistent with all polymers
Chain p 1–113（113 aa）
Not recorded MG MAGNESIUM ION × 60 ZN ZINC ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.10 Å
6ZMW Structure of a human 48S translational initiation complex Deposited 2020-07-04 Assembly 1 Protein–RNA Heteromer；Protein × 54 PDB declaration: 57-meric（57） Consistent with all polymers
Chain p 1–113（113 aa）
Not recorded ZN ZINC ION × 2 MG MAGNESIUM ION × 89 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.70 Å
6ZP4 SARS-CoV-2 Nsp1 bound to a human 43S preinitiation ribosome complex - state 2 Deposited 2020-07-08 Assembly 1 Protein–RNA Heteromer；Protein × 52 PDB declaration: 54-meric（54） Consistent with all polymers
Chain Z 1–113（113 aa）
Not recorded ZN ZINC ION × 4 GTP GUANOSINE-5'-TRIPHOSPHATE × 1 MG MAGNESIUM ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.90 Å
6ZVJ Structure of a human ABCE1-bound 43S pre-initiation complex - State II Deposited 2020-07-24 Assembly 1 Protein–RNA Heteromer；Protein × 50 PDB declaration: 51-meric（51） Consistent with all polymers
Chain N 23–113（91 aa）
Not recorded ZN ZINC ION × 3 SF4 IRON/SULFUR CLUSTER × 2 ADP ADENOSINE-5'-DIPHOSPHATE × 1 MG MAGNESIUM ION × 2 ATP ADENOSINE-5'-TRIPHOSPHATE × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.80 Å
7A09 Structure of a human ABCE1-bound 43S pre-initiation complex - State III Deposited 2020-08-07 Assembly 1 Protein–RNA Heteromer；Protein × 52 PDB declaration: 54-meric（54） Consistent with all polymers
Chain Z 1–113（113 aa）
Not recorded ZN ZINC ION × 4 SF4 IRON/SULFUR CLUSTER × 2 ADP ADENOSINE-5'-DIPHOSPHATE × 1 MG MAGNESIUM ION × 3 ATP ADENOSINE-5'-TRIPHOSPHATE × 1 MET METHIONINE × 1 GTP GUANOSINE-5'-TRIPHOSPHATE × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.50 Å
7QP6 Structure of the human 48S initiation complex in open state (h48S AUG open) Deposited 2022-01-03 Assembly 1 Protein–RNA Heteromer；Protein × 50 PDB declaration: 53-meric（53） Consistent with all polymers
Chain p 1–113（113 aa）
Not recorded ZN ZINC ION × 2 MG MAGNESIUM ION × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5；20 mM Hepes, pH 7.5, 95 mM KOAc, 3.75 mM Mg(OAc)2, 1 mM ATP, 0.5 mM GTP, 0.25 mM spermidine, 2 mM DTT, 0.4 U/uL RiboLock RNase inhibitor
cryo-EM vitrification conditions Cryogen ETHANE；Cryo-EM grids were prepared by floating home-made continuous carbon on 40 ul sample in the wells of teflon block (custom-made). The sample-covered carbon was then adsorbed to an EM grid.
Resolution 4.70 Å
8PJ1 Structure of human 48S translation initiation complex in open codon scanning state (48S-1) Deposited 2023-06-22 Assembly 1 Protein–RNA Heteromer；Protein × 51 PDB declaration: 54-meric（54） Consistent with all polymers
Chain p 1–113（113 aa）
Not recorded MG MAGNESIUM ION × 90 ZN ZINC ION × 3 GTP GUANOSINE-5'-TRIPHOSPHATE × 1 MET METHIONINE × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE；Manual blotting & plunge-freezing
Resolution 3.40 Å
8PPK Bat-Hp-CoV Nsp1 and eIF1 bound to the human 40S small ribosomal subunit Deposited 2023-07-07 Assembly 1 Protein–RNA Heteromer；Protein × 36 PDB declaration: 37-meric（37） Consistent with all polymers
Chain p 1–113（113 aa）
Not recorded UNX UNKNOWN LIGAND × 117 MG MAGNESIUM ION × 111 ZN ZINC ION × 3 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4
cryo-EM vitrification conditions Cryogen ETHANE-PROPANE
Resolution 2.98 Å
8PPL MERS-CoV Nsp1 bound to the human 43S pre-initiation complex Deposited 2023-07-07 Assembly 1 Protein–RNA Heteromer；Protein × 50 PDB declaration: 52-meric（52） Consistent with all polymers
Chain Ip 1–113（113 aa）
Not recorded ZN ZINC ION × 4 GTP GUANOSINE-5'-TRIPHOSPHATE × 1 MG MAGNESIUM ION × 116 MET METHIONINE × 1 UNX UNKNOWN LIGAND × 129 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4
cryo-EM vitrification conditions Cryogen ETHANE-PROPANE
Resolution 2.65 Å
8XXN Cryo-EM structure of the human 43S ribosome with PDCD4 Deposited 2024-01-18 Assembly 1 Protein–RNA Heteromer；Protein × 49 PDB declaration: 50-meric（50） Consistent with all polymers
Chain C1 1–113（113 aa）
Not recorded MG MAGNESIUM ION × 23 ZN ZINC ION × 3 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.60 Å
9BLN The structure of human Pdcd4 bound to the 40S-eIF4A-eIF3-eIF1 complex Deposited 2024-04-30 Assembly 1 Protein–RNA Heteromer；Protein × 49 PDB declaration: 50-meric（50） Consistent with all polymers
Chain W 1–113（113 aa）
Not recorded MG MAGNESIUM ION × 88 K POTASSIUM ION × 19 SPD SPERMIDINE × 1 ZN ZINC ION × 3 ACY ACETIC ACID × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.90 Å
9NPX SARS-CoV-2 nsp1 bound to the Rhinolophus lepidus 40S ribosomal subunit (local refinement of the 40S body) Deposited 2025-03-11 Assembly 1 Protein–RNA Heteromer；Protein × 23 PDB declaration: 24-meric（24） Consistent with all polymers
Chain k 1–113（113 aa）
Not recorded MG MAGNESIUM ION × 57 K POTASSIUM ION × 13 ZN ZINC ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.10 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.