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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：F4KD71 New Search
3PDB entries
3Biological assembly
8chain/assembly records
Main Difference Dimensions in This Set
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
9J7C Arabidopsis high-affinity urea transport DUR3 in the urea-bound occluded conformation, dimeric state Deposited 2024-08-18 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 1–704（704 aa）
Chain B 1–704（704 aa）
Not recorded Y01 CHOLESTEROL HEMISUCCINATE × 4 URE UREA × 2 R16 HEXADECANE × 2 C14 TETRADECANE × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.00 Å
9J7D Arabidopsis high-affinity urea transport DUR3 in the inward-facing open conformation, dimeric state Deposited 2024-08-18 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 1–704（704 aa）
Chain B 1–704（704 aa）
Not recorded Y01 CHOLESTEROL HEMISUCCINATE × 4 C14 TETRADECANE × 1 R16 HEXADECANE × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.80 Å
9X5U Arabidopsis thaliana URE transporter DUR3 - URE bound Deposited 2025-10-14 Assembly 1 Protein homooligomer Homooligomer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain A 1–704（704 aa）
Chain B 1–704（704 aa）
Chain C 1–704（704 aa）
Chain D 1–704（704 aa）
Not recorded URE UREA × 4 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.19 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.