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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：Q2YDN4 New Search
2PDB entries
2Biological assembly
13chain/assembly records
Main Difference Dimensions in This Set
Different assembly state Different ligand/ion 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
8OTZ 48-nm repeat of the native axonemal doublet microtubule from bovine sperm Deposited 2023-04-21 Assembly 1 Protein heterocomplex Heteromer；Protein × 575 PDB declaration: 575-meric（575） Consistent with protein count
Chain BO 1–500（500 aa）
Chain BP 1–500（500 aa）
Chain BQ 1–500（500 aa）
Chain BR 1–500（500 aa）
Not recorded GTP GUANOSINE-5'-TRIPHOSPHATE × 149 MG MAGNESIUM ION × 149 GDP GUANOSINE-5'-DIPHOSPHATE × 153 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.9
cryo-EM vitrification conditions Cryogen ETHANE-PROPANE
Resolution 3.60 Å
9FQR 96-nm repeat of axonemal doublet microtubules from bovine sperm Deposited 2024-06-21 Assembly 1 Protein heterocomplex Heteromer；Protein × 1574 PDB declaration: 1574-meric（1574） Consistent with protein count
Chain BP 1–500（500 aa）
Chain BQ 1–500（500 aa）
Chain BR 1–500（500 aa）
Chain C0 1–500（500 aa）
Chain C6 1–500（500 aa）
Chain Ll 1–500（500 aa）
Chain Lm 1–500（500 aa）
Chain Ln 1–500（500 aa）
Chain Lo 1–500（500 aa）
Not recorded GTP GUANOSINE-5'-TRIPHOSPHATE × 342 MG MAGNESIUM ION × 345 GDP GUANOSINE-5'-DIPHOSPHATE × 345 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.9
cryo-EM vitrification conditions Cryogen ETHANE-PROPANE
Resolution 5.00 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.