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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：Q2TBR5 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
7RRO Structure of the 48-nm repeat doublet microtubule from bovine tracheal cilia Deposited 2021-08-10 Assembly 1 Protein heterocomplex Heteromer；Protein × 429 PDB declaration: 429-meric（429） Consistent with protein count
Chain H 1–274（274 aa）
Chain I 1–274（274 aa）
Chain J 1–274（274 aa）
Chain K 1–274（274 aa）
Chain L 1–274（274 aa）
Chain M 1–274（274 aa）
Chain N 1–274（274 aa）
Not recorded GTP GUANOSINE-5'-TRIPHOSPHATE × 149 MG MAGNESIUM ION × 149 GDP GUANOSINE-5'-DIPHOSPHATE × 153 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.40 Å
9CPB Atomic model of bovine Fallopian tube cilia doublet microtubule (48-nm periodicity) Deposited 2024-07-18 Assembly 1 Protein heterocomplex Heteromer；Protein × 395 PDB declaration: 395-meric（395） Consistent with protein count
Chain 3X 1–274（274 aa）
Chain 3Y 1–274（274 aa）
Chain 3Z 1–274（274 aa）
Chain 4A 1–274（274 aa）
Chain 4B 1–274（274 aa）
Chain 4C 1–274（274 aa）
Not recorded GDP GUANOSINE-5'-DIPHOSPHATE × 130 MG MAGNESIUM ION × 106 GTP GUANOSINE-5'-TRIPHOSPHATE × 134 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.52 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.