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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：Q8TE23 New Search
25PDB entries
25Biological assembly
25chain/assembly records
Main Difference Dimensions in This Set
Different construct 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
9NOR Human sweet taste receptor composed of TAS1R2 and TAS1R3 GPCRs from the combined datasets Deposited 2025-03-10 Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 19–839（821 aa）
Not recorded NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 16 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.40 Å
9NOS Human sweet taste receptor (TAS1R2 + TAS1R3) from the PEG400 dataset Deposited 2025-03-10 Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 19–839（821 aa）
Not recorded NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 16 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.50 Å
9NOT Human sweet taste receptor (TAS1R2 + TAS1R3) from the sucralose dataset Deposited 2025-03-10 Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 19–839（821 aa）
Not recorded NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 16 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.80 Å
9NOU Human sweet taste receptor (TAS1R2 + TAS1R3) VFT domains from the combined datasets Deposited 2025-03-10 Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 19–515（497 aa）
Not recorded NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 15 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.80 Å
9NOV Human sweet taste receptor (TAS1R2 + TAS1R3) VFT domains bound to sucralose Deposited 2025-03-10 Assembly 1 Other combination Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 19–518（500 aa）
Not recorded NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 15 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.30 Å
9NOW Human sweet taste receptor (TAS1R2 + TAS1R3) VFT domains bound to aspartame Deposited 2025-03-10 Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 19–518（500 aa）
Not recorded NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 15 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.10 Å
9NOX Transmembrane domains of the human TAS1R2 sweet receptor subunit in complex with miniGs/gust25 Deposited 2025-03-10 Assembly 1 Protein heterocomplex Heteromer；Protein × 5 PDB declaration: pentameric（5） Consistent with protein count
Chain A 19–839（821 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.00 Å
9NOY Human TAS1R2 transmembrane domains from the TAS1R2-TM-G protein complex Deposited 2025-03-10 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 19–839（821 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.70 Å
9O38 Transmembrane domains of the human sweet receptor (TAS1R2 + TAS1R3) from Class 3 particles (rigidly fitted from PDB:9NOX and 9NOR) Deposited 2025-04-06 Assembly 1 Insufficient information Heteromer；Protein × 6 PDB declaration: hexameric（6） Consistent with protein count
Chain A 19–839（821 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.00 Å
9OPW Structure of the sweet receptor in the apo state, extracellular domain Deposited 2025-05-20 Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 25–555（531 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.86 Å
9OPX Structure of the sweet receptor in the apo state, transmembrane domain Deposited 2025-05-20 Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 554–831（278 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.63 Å
9OPY Structure of the sweet receptor in the apo state Deposited 2025-05-20 Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 20–839（820 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.51 Å
9OPZ Structure of the sweet receptor bound to sucralose in the compact state, extracellular domain Deposited 2025-05-20 Assembly 1 Other combination Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 25–555（531 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.16 Å
9OQ0 Structure of the sweet receptor bound to sucralose in the compact state, transmembrane domain Deposited 2025-05-20 Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 554–831（278 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.67 Å
9OQ1 Structure of the sweet receptor bound to sucralose in the loose state, extracellular domain Deposited 2025-05-20 Assembly 1 Other combination Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 25–555（531 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.98 Å
9OQ2 Structure of the sweet receptor bound to advantame in the compact state, extracellular domain Deposited 2025-05-20 Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 22–839（818 aa）
Not recorded A1CD7 advantame × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.27 Å
9OQ3 Structure of the sweet receptor bound to advantame in the loose state, extracellular domain Deposited 2025-05-20 Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 22–839（818 aa）
Not recorded A1CD7 advantame × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.11 Å
9OQ4 Structure of the human sweet receptor bound to advantame in the compact state, extracellular domain Deposited 2025-05-20 Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 22–839（818 aa）
Not recorded A1CD7 advantame × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.59 Å
9OQ5 Structure of the human sweet receptor bound to advantame in the intermediate state, extracellular domain Deposited 2025-05-20 Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 22–839（818 aa）
Not recorded A1CD7 advantame × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.93 Å
9OQ6 Structure of the human sweet receptor bound to advantame in the loose state, extracellular domain Deposited 2025-05-20 Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 22–839（818 aa）
Not recorded A1CD7 advantame × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.57 Å
9UT8 The full-length human sweet taste receptor TAS1R2 and TAS1R3 in the apo state Deposited 2025-05-03 Assembly 1 Insufficient information Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 26–839（814 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.41 Å
9UT9 The VFT domains of human sweet taste receptor TAS1R2 and TAS1R3 in the apo state Deposited 2025-05-03 Assembly 1 Insufficient information Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 26–839（814 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.18 Å
9UTA The transmembrane domains of human sweet taste receptor TAS1R2 and TAS1R3 in the apo state Deposited 2025-05-03 Assembly 1 Insufficient information Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 26–839（814 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.77 Å
9UTB The full-length human sweet taste receptor TAS1R2 and TAS1R3 in the sucralose-bound state Deposited 2025-05-03 Assembly 1 Insufficient information Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 26–839（814 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.59 Å
9UTC The VFT domains of human sweet taste receptor TAS1R2 and TAS1R3 in the sucralose-bound state Deposited 2025-05-03 Assembly 1 Insufficient information Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 26–839（814 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.33 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.