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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：O43193 New Search
4PDB entries
4Biological assembly
4chain/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
8IBU Cryo-EM structure of the erythromycin-bound motilin receptor-Gq protein complex Deposited 2023-02-10 Assembly 1 Insufficient information Heteromer；Protein × 5 PDB declaration: pentameric（5） Consistent with protein count
Chain R 1–412（412 aa）
Not recorded ERY ERYTHROMYCIN A × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.51 Å
8IBV Cryo-EM structure of the motilin-bound motilin receptor-Gq protein complex Deposited 2023-02-10 Assembly 1 Insufficient information Heteromer；Protein × 6 PDB declaration: hexameric（6） Consistent with protein count
Chain R 1–412（412 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.19 Å
9JMC Cryo-EM structure of the DS-3801b-Motilin receptor-Gq protein complex Deposited 2024-09-20 Assembly 1 Protein heterocomplex Heteromer；Protein × 5 PDB declaration: pentameric（5） Consistent with protein count
Chain R 1–412（412 aa）
Not recorded CLR CHOLESTEROL × 1 A1L4H 4-[3-(hydroxymethyl)phenoxy]-~{N}-methyl-~{N}-[3-methyl-4-[[(3~{S})-3-methylpiperazin-1-yl]methyl]phenyl]cyclohexane-1-carboxamide × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.57 Å
9JMD Cryo-EM structure of the Azithromycin-Motilin receptor-Gq protein complex Deposited 2024-09-20 Assembly 1 Protein heterocomplex Heteromer；Protein × 5 PDB declaration: pentameric（5） Consistent with protein count
Chain R 1–412（412 aa）
Not recorded CLR CHOLESTEROL × 2 ZIT AZITHROMYCIN × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.74 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.