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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：P23416 New Search
13PDB entries
13Biological assembly
77chain/assembly records
Main Difference Dimensions in This Set
Different construct Different mutation/modification 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
5BKF Cyro-EM structure of human Glycine Receptor alpha2-beta heteromer, Glycine bound, desensitized state Deposited 2021-03-19 Assembly 1 Insufficient information Heteromer；Protein × 5 PDB declaration: pentameric（5） Consistent with protein count
Chain A 28–343（316 aa）
Chain A 409–452（44 aa）
Chain B 28–343（316 aa）
Chain B 409–452（44 aa）
Chain C 28–343（316 aa）
Chain C 409–452（44 aa）
Chain D 28–343（316 aa）
Chain D 409–452（44 aa）
Mutation：second cytoplasmic domain deleted Mutation：second cytoplasmic domain deleted Mutation：second cytoplasmic domain deleted Mutation：second cytoplasmic domain deleted Mutation：second cytoplasmic domain deleted Mutation：second cytoplasmic domain deleted Mutation：second cytoplasmic domain deleted Mutation：second cytoplasmic domain deleted NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 9 GLY GLYCINE × 5 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.60 Å
5BKG Cyro-EM structure of human Glycine Receptor alpha2-beta heteromer, glycine bound, (semi)open state Deposited 2021-03-19 Assembly 1 Insufficient information Heteromer；Protein × 5 PDB declaration: pentameric（5） Consistent with protein count
Chain A 28–343（316 aa）
Chain A 409–452（44 aa）
Chain B 28–343（316 aa）
Chain B 409–452（44 aa）
Chain C 28–343（316 aa）
Chain C 409–452（44 aa）
Chain D 28–343（316 aa）
Chain D 409–452（44 aa）
Mutation：second cytoplasmic domain deleted Mutation：second cytoplasmic domain deleted Mutation：second cytoplasmic domain deleted Mutation：second cytoplasmic domain deleted Mutation：second cytoplasmic domain deleted Mutation：second cytoplasmic domain deleted Mutation：second cytoplasmic domain deleted Mutation：second cytoplasmic domain deleted NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 9 GLY GLYCINE × 3 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.80 Å
7KUY Cyro-EM structure of human Glycine Receptor alpha2-beta heteromer, strychnine bound state Deposited 2020-11-25 Assembly 1 Insufficient information Heteromer；Protein × 5 PDB declaration: pentameric（5） Consistent with protein count
Chain A 28–343（316 aa）
Chain A 409–452（44 aa）
Chain B 28–343（316 aa）
Chain B 409–452（44 aa）
Chain C 28–343（316 aa）
Chain C 409–452（44 aa）
Chain D 28–343（316 aa）
Chain D 409–452（44 aa）
Not recorded NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 9 SY9 STRYCHNINE × 5 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.60 Å
7L31 Cyro-EM structure of human Glycine Receptor alpha2-beta heteromer, strychnine bound state, 3.8 Angstrom Deposited 2020-12-17 Assembly 1 Insufficient information Heteromer；Protein × 5 PDB declaration: pentameric（5） Consistent with protein count
Chain A 28–343（316 aa）
Chain A 409–452（44 aa）
Chain B 28–343（316 aa）
Chain B 409–452（44 aa）
Chain C 28–343（316 aa）
Chain C 409–452（44 aa）
Chain D 28–343（316 aa）
Chain D 409–452（44 aa）
Mutation：second cytoplasmic domain deleted Mutation：second cytoplasmic domain deleted Mutation：second cytoplasmic domain deleted Mutation：second cytoplasmic domain deleted Mutation：second cytoplasmic domain deleted Mutation：second cytoplasmic domain deleted Mutation：second cytoplasmic domain deleted Mutation：second cytoplasmic domain deleted NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 9 SY9 STRYCHNINE × 5 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.80 Å
9Y7P Homomeric Glycine Receptor alpha2 with 1 mM Glycine in a Desensitized State Deposited 2025-09-11 Assembly 1 Protein homooligomer Homooligomer；Protein × 5 PDB declaration: pentameric（5） Consistent with protein count
Chain A 1–452（452 aa）
Chain B 1–452（452 aa）
Chain C 1–452（452 aa）
Chain D 1–452（452 aa）
Chain E 1–452（452 aa）
Not recorded NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 10 GLY GLYCINE × 5 PX4 1,2-DIMYRISTOYL-SN-GLYCERO-3-PHOSPHOCHOLINE × 30 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.50 Å
9Y7W Homomeric Glycine Receptor alpha2 with 1 mM Glycine in an Open State Deposited 2025-09-11 Assembly 1 Protein homooligomer Homooligomer；Protein × 5 PDB declaration: pentameric（5） Consistent with protein count
Chain A 1–452（452 aa）
Chain B 1–452（452 aa）
Chain C 1–452（452 aa）
Chain D 1–452（452 aa）
Chain E 1–452（452 aa）
Not recorded NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 10 GLY GLYCINE × 5 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.19 Å
9Y7X Homomeric Glycine Receptor alpha2 with 0.1 mM Glycine in an Open State Deposited 2025-09-11 Assembly 1 Protein homooligomer Homooligomer；Protein × 5 PDB declaration: pentameric（5） Consistent with protein count
Chain A 1–452（452 aa）
Chain B 1–452（452 aa）
Chain C 1–452（452 aa）
Chain D 1–452（452 aa）
Chain E 1–452（452 aa）
Not recorded NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 10 GLY GLYCINE × 5 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.55 Å
9Y7Z Homomeric Glycine Receptor alpha2 with 0.1 mM Glycine in a Desensitized State Deposited 2025-09-11 Assembly 1 Protein homooligomer Homooligomer；Protein × 5 PDB declaration: pentameric（5） Consistent with protein count
Chain A 1–452（452 aa）
Chain B 1–452（452 aa）
Chain C 1–452（452 aa）
Chain D 1–452（452 aa）
Chain E 1–452（452 aa）
Not recorded PX4 1,2-DIMYRISTOYL-SN-GLYCERO-3-PHOSPHOCHOLINE × 20 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 10 GLY GLYCINE × 5 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.78 Å
9Y80 Homomeric Glycine Receptor alpha2 with PTX in a Desensitized State Deposited 2025-09-11 Assembly 1 Protein homooligomer Homooligomer；Protein × 5 PDB declaration: pentameric（5） Consistent with protein count
Chain A 1–452（452 aa）
Chain B 1–452（452 aa）
Chain C 1–452（452 aa）
Chain D 1–452（452 aa）
Chain E 1–452（452 aa）
Not recorded NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 10 GLY GLYCINE × 5 RI5 (1aR,2aR,3S,6R,6aS,8aS,8bR,9R)-2a-hydroxy-8b-methyl-9-(prop-1-en-2-yl)hexahydro-3,6-methano-1,5,7-trioxacyclopenta[ij]c yclopropa[a]azulene-4,8(3H)-dione × 1 PX4 1,2-DIMYRISTOYL-SN-GLYCERO-3-PHOSPHOCHOLINE × 15 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.55 Å
9Y8Z Homomeric Glycine Receptor alpha2 with 0.1 mM Glycine in an Apo State Deposited 2025-09-11 Assembly 1 Protein homooligomer Homooligomer；Protein × 5 PDB declaration: pentameric（5） Consistent with protein count
Chain A 1–452（452 aa）
Chain B 1–452（452 aa）
Chain C 1–452（452 aa）
Chain D 1–452（452 aa）
Chain E 1–452（452 aa）
Not recorded NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 10 PX4 1,2-DIMYRISTOYL-SN-GLYCERO-3-PHOSPHOCHOLINE × 30 CLR CHOLESTEROL × 5 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.50 Å
9Y94 Homomeric Glycine Receptor alpha2 with PTX in an Open State Deposited 2025-09-13 Assembly 1 Protein homooligomer Homooligomer；Protein × 5 PDB declaration: pentameric（5） Consistent with protein count
Chain A 1–452（452 aa）
Chain B 1–452（452 aa）
Chain C 1–452（452 aa）
Chain D 1–452（452 aa）
Chain E 1–452（452 aa）
Not recorded NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 10 GLY GLYCINE × 5 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.60 Å
9Y95 Homomeric Glycine Receptor alpha2 with PTX in an Apo State Deposited 2025-09-13 Assembly 1 Protein homooligomer Homooligomer；Protein × 5 PDB declaration: pentameric（5） Consistent with protein count
Chain A 1–452（452 aa）
Chain B 1–452（452 aa）
Chain C 1–452（452 aa）
Chain D 1–452（452 aa）
Chain E 1–452（452 aa）
Not recorded NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 10 PX4 1,2-DIMYRISTOYL-SN-GLYCERO-3-PHOSPHOCHOLINE × 20 RI5 (1aR,2aR,3S,6R,6aS,8aS,8bR,9R)-2a-hydroxy-8b-methyl-9-(prop-1-en-2-yl)hexahydro-3,6-methano-1,5,7-trioxacyclopenta[ij]c yclopropa[a]azulene-4,8(3H)-dione × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.45 Å
9Y96 Homomeric Glycine Receptor alpha2 with 1 mM Glycine in a Closed State Deposited 2025-09-13 Assembly 1 Protein homooligomer Homooligomer；Protein × 5 PDB declaration: pentameric（5） Consistent with protein count
Chain A 1–452（452 aa）
Chain B 1–452（452 aa）
Chain C 1–452（452 aa）
Chain D 1–452（452 aa）
Chain E 1–452（452 aa）
Not recorded NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 10 GLY GLYCINE × 5 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.36 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.