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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：Q9BXC0 New Search
6PDB entries
6Biological assembly
6chain/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
8Z87 Cryo-EM structure of the CHBA-bound human HCAR1-Gi1 complex Deposited 2024-04-21 Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain R 1–346（346 aa）
Not recorded A1D71 3-chloranyl-5-oxidanyl-benzoic acid × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.73 Å
8Z8A Cryo-EM structure of the Lactate-bound human HCAR1-Gi1 complex Deposited 2024-04-21 Assembly 1 Protein heterocomplex Heteromer；Protein × 5 PDB declaration: pentameric（5） Consistent with protein count
Chain R 1–346（346 aa）
Not recorded 2OP (2S)-2-HYDROXYPROPANOIC ACID × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.82 Å
8Z8B Cryo-EM structure of human HCAR1-Gi complex without ligand (apo state) Deposited 2024-04-21 Assembly 1 Protein heterocomplex Heteromer；Protein × 5 PDB declaration: pentameric（5） Consistent with protein count
Chain R 1–346（346 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.65 Å
9IZD Cryo-EM structure of human HCAR1-Gi complex with CHBA Deposited 2024-08-01 Assembly 1 Protein heterocomplex Heteromer；Protein × 5 PDB declaration: pentameric（5） Consistent with protein count
Chain A 6–284（279 aa）
Not recorded A1D71 3-chloranyl-5-oxidanyl-benzoic acid × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.2
cryo-EM vitrification conditions Cryogen NITROGEN
Resolution 3.16 Å
9J8Z Cryo-EM structure of human HCAR1-Gi complex without ligand (apo state) Deposited 2024-08-21 Assembly 1 Protein heterocomplex Heteromer；Protein × 5 PDB declaration: pentameric（5） Consistent with protein count
Chain A 6–284（279 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.2
cryo-EM vitrification conditions Cryogen NITROGEN
Resolution 3.36 Å
9KT9 Cryo-EM structure of HCA1-Gi complex with 3,5-DHBA Deposited 2024-12-02 Assembly 1 Protein heterocomplex Heteromer；Protein × 5 PDB declaration: pentameric（5） Consistent with protein count
Chain R 1–346（346 aa）
Not recorded 34D 3,5-DIHYDROXYBENZOATE × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.70 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.