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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：Q6B857 New Search
4PDB entries
4Biological assembly
35chain/assembly records
Main Difference Dimensions in This Set
Different assembly state Different ligand/ion 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
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 XA 1–193（193 aa）
Chain XB 1–193（193 aa）
Chain XC 1–193（193 aa）
Chain XD 1–193（193 aa）
Chain XE 1–193（193 aa）
Chain XF 1–193（193 aa）
Chain XG 1–193（193 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
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 XG 1–193（193 aa）
Chain XH 1–193（193 aa）
Chain XI 1–193（193 aa）
Chain XJ 1–193（193 aa）
Chain XK 1–193（193 aa）
Chain XL 1–193（193 aa）
Chain XM 1–193（193 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
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 1W 1–193（193 aa）
Chain 1X 1–193（193 aa）
Chain 1Y 1–193（193 aa）
Chain 1Z 1–193（193 aa）
Chain 2A 1–193（193 aa）
Chain 2B 1–193（193 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
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 XG 1–193（193 aa）
Chain XH 1–193（193 aa）
Chain XI 1–193（193 aa）
Chain XJ 1–193（193 aa）
Chain XK 1–193（193 aa）
Chain XL 1–193（193 aa）
Chain XM 1–193（193 aa）
Chain XN 1–193（193 aa）
Chain XO 1–193（193 aa）
Chain XP 1–193（193 aa）
Chain XQ 1–193（193 aa）
Chain XR 1–193（193 aa）
Chain XS 1–193（193 aa）
Chain XT 1–193（193 aa）
Chain XU 1–193（193 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.