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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：P30874 New Search
17PDB entries
17Biological assembly
22chain/assembly records
Main Difference Dimensions in This Set
Different construct 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
7T10 CryoEM structure of somatostatin receptor 2 in complex with somatostatin-14 and Gi3 Deposited 2021-11-30 Assembly 1 Insufficient information Heteromer；Protein × 6 PDB declaration: hexameric（6） Consistent with protein count
Chain R 1–235（235 aa）
Chain R 253–369（117 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.50 Å
7T11 CryoEM structure of somatostatin receptor 2 in complex with Octreotide and Gi3. Deposited 2021-11-30 Assembly 1 Insufficient information Heteromer；Protein × 6 PDB declaration: hexameric（6） Consistent with protein count
Chain R 1–235（235 aa）
Chain R 253–369（117 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.70 Å
7UL5 CryoEM Structure of Inactive SSTR2 bound to Nb6 Deposited 2022-04-03 Assembly 1 Insufficient information Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 1–237（237 aa）
Chain A 254–369（116 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.10 Å
7WIC Cryo-EM structure of the SS-14-bound human SSTR2-Gi1 complex Deposited 2022-01-03 Assembly 1 Protein heterocomplex Heteromer；Protein × 6 PDB declaration: hexameric（6） Consistent with protein count
Chain R 1–369（369 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.80 Å
7WIG Cryo-EM structure of the L-054,264-bound human SSTR2-Gi1 complex Deposited 2022-01-03 Assembly 1 Protein heterocomplex Heteromer；Protein × 5 PDB declaration: pentameric（5） Consistent with protein count
Chain R 1–369（369 aa）
Not recorded 9FI ~{N}-[(2~{R})-1-[[(1~{R},3~{S})-3-(aminomethyl)cyclohexyl]methylamino]-3-(1~{H}-indol-3-yl)-1-oxidanylidene-propan-2-yl]spiro[indene-1,4'-piperidine]-1'-carboxamide × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.70 Å
7WJ5 Cryo-EM structure of human somatostatin receptor 2 complex with its agonist somatostatin delineates the ligand binding specificity Deposited 2022-01-05 Assembly 1 Insufficient information Heteromer；Protein × 6 PDB declaration: hexameric（6） Consistent with protein count
Chain R 1–369（369 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.72 Å
7XAT Structure of somatostatin receptor 2 bound with SST14. Deposited 2022-03-19 Assembly 1 Protein heterocomplex Heteromer；Protein × 6 PDB declaration: hexameric（6） Consistent with protein count
Chain A 1–359（359 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.85 Å
7XAU Structure of somatostatin receptor 2 bound with octreotide. Deposited 2022-03-19 Assembly 1 Protein heterocomplex Heteromer；Protein × 6 PDB declaration: hexameric（6） Consistent with protein count
Chain A 1–359（359 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.97 Å
7XAV Structure of somatostatin receptor 2 bound with lanreotide. Deposited 2022-03-19 Assembly 1 Protein heterocomplex Heteromer；Protein × 6 PDB declaration: hexameric（6） Consistent with protein count
Chain A 1–359（359 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.87 Å
7XMR CryoEM structure of the somatostatin receptor 2 (SSTR2) in complex with Gi1 and its endogeneous peptide ligand SST-14 Deposited 2022-04-26 Assembly 1 Protein heterocomplex Heteromer；Protein × 5 PDB declaration: pentameric（5） Consistent with protein count
Chain R 2–359（358 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.10 Å
7XN9 Crystal structure of SSTR2 and L-054,522 complex Deposited 2022-04-28 Assembly 1 Insufficient information Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 2–239（238 aa）
Chain A 243–359（117 aa）
Not recorded EPE 4-(2-HYDROXYETHYL)-1-PIPERAZINE ETHANESULFONIC ACID × 1 GI9 tert-butyl (2S)-6-azanyl-2-[[(2R,3S)-3-(1H-indol-3-yl)-2-[[4-(2-oxidanylidene-3H-benzimidazol-1-yl)piperidin-1-yl]carbonylamino]butanoyl]amino]hexanoate × 1 X-RAY DIFFRACTION
X-ray crystallization conditions LIPIDIC CUBIC PHASE；pH 7；293 K；100-400 mM lithium nitrate, 6-10% PEG2000, 100 mM L-054,522, and 0.1 M HEPES, pH 7.0
Resolution 2.60 Å R-free 0.265
7XNA Crystal structure of somatostatin receptor 2 (SSTR2) with peptide antagonist CYN 154806 Deposited 2022-04-28 Assembly 1 Insufficient information Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 2–237（236 aa）
Chain A 244–359（116 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions LIPIDIC CUBIC PHASE；pH 7；293 K；100-300 mM ammonium sulphate, 6-10% PEG2000, 1 mg/ml CYN 154806, and 0.1 M HEPES, pH 7.0
Resolution 2.65 Å R-free 0.290
7Y24 Cryo-EM structure of the octreotide-bound SSTR2-miniGo-scFv16 complex Deposited 2022-06-09 Assembly 1 Protein heterocomplex Heteromer；Protein × 6 PDB declaration: hexameric（6） Consistent with protein count
Chain E 1–327（327 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.25 Å
7Y26 Cryo-EM structure of the octreotide-bound SSTR2-miniGq-scFv16 complex Deposited 2022-06-09 Assembly 1 Protein heterocomplex Heteromer；Protein × 6 PDB declaration: hexameric（6） Consistent with protein count
Chain E 1–337（337 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.30 Å
7Y27 Cryo-EM structure of the SST-14-bound SSTR2-miniGq-scFv16 complex Deposited 2022-06-09 Assembly 1 Protein heterocomplex Heteromer；Protein × 6 PDB declaration: hexameric（6） Consistent with protein count
Chain E 1–337（337 aa）
Not recorded CLR CHOLESTEROL × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.48 Å
7YAC Paltusotine-bound SSTR2-Gi complex Deposited 2022-06-27 Assembly 1 Protein heterocomplex Heteromer；Protein × 5 PDB declaration: pentameric（5） Consistent with protein count
Chain E 31–338（308 aa）
Not recorded IUD Paltusotine × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.24 Å
7YAE Octreotide-bound SSTR2-Gi complex Deposited 2022-06-28 Assembly 1 Protein heterocomplex Heteromer；Protein × 6 PDB declaration: hexameric（6） Consistent with protein count
Chain E 1–369（369 aa）
Not recorded CLR CHOLESTEROL × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.37 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.