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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：P32238 New Search
14PDB entries
14Biological assembly
17chain/assembly records
Main Difference Dimensions in This Set
Different construct Different mutation/modification 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
1D6G MOLECULAR COMPLEX OF CHOLECYSTOKININ-8 AND N-TERMINUS OF THE CHOLECYSTOKININ A RECEPTOR BY NMR SPECTROSCOPY Deposited 1999-10-13 Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 1–47（47 aa） Fragment：N-TERMINAL DOMAIN (1-47)
Not recorded No recorded non-water small molecule SOLUTION NMR
NMR measurement conditions pH 6.5；285 K；Pressure ambient
NMR measurement conditions pH 6.5；298 K；Pressure ambient
NMR measurement conditions pH 6.5；308 K；Pressure ambient
NMR sample composition 1.6mM CCK-A_R(1-47), 171 mM DPC-d38, 90% H2O/10% D2O | 90% H2O/10% D2O
NMR sample composition 1.5mM CCK-8, 137mM DPC-d38, 90% H2O/10% D2O | 90% H2O/10% D2O
NMR sample composition 0.8mM CCK-A-R(1-47) + 0.37-3mM CCK-8, 171 mM DPC-d38, 100% D2O | 100% D2O
NMR sample composition 1.6mM CCK-A-R(1-47) + 3mM CCK-8, 171 mM DPC-d38, 100% D2O or 90% H2O, 10% D2O | 100% D2O or 90% H2O, 10% D2O
Resolution not provided
1HZN NMR SOLUTION STRUCTURE OF THE THIRD EXTRACELLULAR LOOP OF THE CHOLECYSTOKININ A RECEPTOR Deposited 2001-01-25 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 329–357（29 aa） Fragment：RESIDUES 329-357
Non-standard monomer：Yes (specific site not provided by mmCIF) No recorded non-water small molecule SOLUTION NMR
NMR measurement conditions pH 4.5；303 K；Pressure 1
NMR sample composition Peptides, DPC
Resolution not provided
7EZH Cryo-EM structure of an activated Cholecystokinin A receptor (CCKAR)-Gi complex Deposited 2021-06-01 Assembly 1 Protein heterocomplex Heteromer；Protein × 6 PDB declaration: hexameric（6） Consistent with protein count
Chain D 1–428（428 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.20 Å
7EZK Cryo-EM structure of an activated Cholecystokinin A receptor (CCKAR)-Gs complex Deposited 2021-06-01 Assembly 1 Insufficient information Heteromer；Protein × 5 PDB declaration: pentameric（5） Consistent with protein count
Chain D 1–428（428 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.10 Å
7EZM Cryo-EM structure of an activated Cholecystokinin A receptor (CCKAR)-Gq complex Deposited 2021-06-01 Assembly 1 Insufficient information Heteromer；Protein × 6 PDB declaration: hexameric（6） Consistent with protein count
Chain D 1–428（428 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.90 Å
7F8U Crystal structure of the cholecystokinin receptor CCKAR in complex with lintitript Deposited 2021-07-02 Assembly 1 Insufficient information Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 37–240（204 aa）
Chain A 302–375（74 aa）
Not recorded 1OE 2-[2-[[4-(2-chlorophenyl)-1,3-thiazol-2-yl]carbamoyl]indol-1-yl]ethanoic acid × 1 X-RAY DIFFRACTION
X-ray crystallization conditions LIPIDIC CUBIC PHASE；293 K；0.1 M HEPES, pH7.5, 25% PEG400, 250 mM sodium tartrate ,1% 1,2 -butanediol
Resolution 2.80 Å R-free 0.253
7F8X Crystal structure of the cholecystokinin receptor CCKAR in complex with NN9056 Deposited 2021-07-02 Assembly 1 Insufficient information Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 2–240（239 aa）
Chain A 302–406（105 aa）
Mutation：F130W,C1251G,C1336A,C1293T,I1376R Mutation：F130W,C1251G,C1336A,C1293T,I1376R No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions LIPIDIC CUBIC PHASE；293 K；100 mM HEPES,7.5, 10 (v/v) PPG400 and 100 mM ammonium acetate
Resolution 3.00 Å R-free 0.261
7F8Y Crystal structure of the cholecystokinin receptor CCKAR in complex with devazepide Deposited 2021-07-02 Assembly 1 Insufficient information Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 37–240（204 aa）
Chain A 302–406（105 aa）
Mutation：D87N,F130W,R1251G,G1293T,C1336A,I385R Mutation：D87N,F130W,R1251G,G1293T,C1336A,I385R 1OZ N-[(3S)-1-methyl-2-oxidanylidene-5-phenyl-3H-1,4-benzodiazepin-3-yl]-1H-indole-2-carboxamide × 1 X-RAY DIFFRACTION
X-ray crystallization conditions LIPIDIC CUBIC PHASE；293 K；0.1 M HEPES, pH 7.5, 25% (v/v) PEG400 and 350 mM ammonium acetate
Resolution 2.50 Å R-free 0.268
7MBX Human Cholecystokinin 1 receptor (CCK1R) Gs complex Deposited 2021-04-01 Assembly 1 Protein heterocomplex Heteromer；Protein × 6 PDB declaration: hexameric（6） Consistent with protein count
Chain R 2–428（427 aa）
Not recorded Y01 CHOLESTEROL HEMISUCCINATE × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 1.95 Å
7MBY Human Cholecystokinin 1 receptor (CCK1R) Gq chimera (mGsqi) complex Deposited 2021-04-01 Assembly 1 Insufficient information Heteromer；Protein × 5 PDB declaration: pentameric（5） Consistent with protein count
Chain R 2–428（427 aa）
Not recorded Y01 CHOLESTEROL HEMISUCCINATE × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.44 Å
7XOU Structural insights into human brain gut peptide cholecystokinin receptors Deposited 2022-05-01 Assembly 1 Protein heterocomplex Heteromer；Protein × 6 PDB declaration: hexameric（6） Consistent with protein count
Chain R 1–428（428 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.20 Å
7XOV Structural insights into human brain gut peptide cholecystokinin receptors Deposited 2022-05-01 Assembly 1 Protein heterocomplex Heteromer；Protein × 5 PDB declaration: pentameric（5） Consistent with protein count
Chain R 1–428（428 aa）
Not recorded IA1 2-[2-[[4-(4-chloranyl-2,5-dimethoxy-phenyl)-5-(2-cyclohexylethyl)-1,3-thiazol-2-yl]carbamoyl]-5,7-dimethyl-indol-1-yl]ethanoic acid × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.00 Å
9BKJ Cholecystokinin 1 receptor (CCK1R) Y140A mutant, Gq chimera (mGsqi) complex Deposited 2024-04-29 Assembly 1 Insufficient information Heteromer；Protein × 5 PDB declaration: pentameric（5） Consistent with protein count
Chain R 2–428（427 aa）
Mutation：Y140A NH2 AMINO GROUP × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.59 Å
9BKK Cholecystokinin 1 receptor (CCK1R) sterol 7M mutant, Gq chimera (mGsqi) complex Deposited 2024-04-29 Assembly 1 Protein heterocomplex Heteromer；Protein × 5 PDB declaration: pentameric（5） Consistent with protein count
Chain R 2–428（427 aa）
Mutation：F130L, S136A, G141S, I216L, L219F, I223V, M226A No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.51 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.