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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：P02100 New Search
1PDB entries
1Biological assembly
2chain/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
1A9W HUMAN EMBRYONIC GOWER II CARBONMONOXY HEMOGLOBIN Deposited 1998-04-11 Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain E 1–146（146 aa）
Chain F 1–146（146 aa）
Not recorded HEM PROTOPORPHYRIN IX CONTAINING FE × 4 CMO CARBON MONOXIDE × 4 X-RAY DIFFRACTION
X-ray crystallization conditions microseeding and macroseeding used to increase crystal size；pH 8.5；PROTEIN WAS CRYSTALLIZED FROM 21% MME-PEG 5000, 0.2M TAPS/ KOH, PH 8.5, 2MM DITHIONITE. THEN MICROSEEDING AND MACROSEEDING USED TO INCREASE CRYSTAL SIZE, microseeding and macroseeding used to increase crystal size
Resolution 2.90 Å R-free 0.232

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.