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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：S8EN17 New Search
1PDB entries
1Biological assembly
12chain/assembly records
Main Difference Dimensions in This Set
No difference found in parsed fields

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
9YA0 Cryo-EM structure of pre-conoid ring 2 (PCR P2 ring)from Toxoplasma gondii Deposited 2025-09-15 Assembly 1 Protein heterocomplex Heteromer；Protein × 117 PDB declaration: 117-meric（117） Consistent with protein count
Chain MA 1–2720（2720 aa）
Chain MB 1–2720（2720 aa）
Chain MC 1–2720（2720 aa）
Chain MD 1–2720（2720 aa）
Chain ME 1–2720（2720 aa）
Chain MF 1–2720（2720 aa）
Chain MG 1–2720（2720 aa）
Chain MH 1–2720（2720 aa）
Chain MI 1–2720（2720 aa）
Chain MJ 1–2720（2720 aa）
Chain MK 1–2720（2720 aa）
Chain ML 1–2720（2720 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.54 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.