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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：P27303 New Search
2PDB entries
2Biological assembly
12chain/assembly records
Main Difference Dimensions in This Set
Different construct 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
8ZAL EmrAB-TolC MFS-type tripartite multidrug efflux pump EA Deposited 2024-04-25 Assembly 1 Protein heterocomplex Heteromer；Protein × 10 PDB declaration: decameric（10） Consistent with protein count
Chain A 47–390（344 aa）
Chain B 47–390（344 aa）
Chain C 47–390（344 aa）
Chain D 47–390（344 aa）
Chain E 47–390（344 aa）
Chain F 47–390（344 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.11 Å
8ZAR EmrAB-TolC MFS-type tripartite multidrug efflux pump FA Deposited 2024-04-25 Assembly 1 Protein heterocomplex Heteromer；Protein × 10 PDB declaration: decameric（10） Consistent with protein count
Chain A 1–390（390 aa）
Chain B 1–390（390 aa）
Chain C 1–390（390 aa）
Chain D 1–390（390 aa）
Chain E 1–390（390 aa）
Chain F 1–390（390 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.59 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.