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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：P00921 New Search
14PDB entries
22Biological assembly
44chain/assembly records
UNP PDB Protein and construct Assembly Composition class Protein state Molecular copy count PDB declaration Consistency status
P00921 1g6v CARBONIC ANHYDRASE Author chain A Reference sequence 0–260 1 Protein heterocomplex Heteromer Protein 2 dimeric （2） Consistent with protein count
P00921 1v9e Carbonic anhydrase II Author chain A Reference sequence 1–259 1 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
P00921 1v9e Carbonic anhydrase II Author chain B Reference sequence 1–259 1 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
P00921 1v9e Carbonic anhydrase II Author chain A Reference sequence 1–259 2 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
P00921 1v9e Carbonic anhydrase II Author chain B Reference sequence 1–259 2 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
P00921 1v9i Carbonic anhydrase II Author chain C Reference sequence 1–259 1 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
P00921 23om Carbonic anhydrase 2 Author chain A Reference sequence 2–260 1 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
P00921 23om Carbonic anhydrase 2 Author chain B Reference sequence 2–260 1 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
P00921 23om Carbonic anhydrase 2 Author chain A Reference sequence 2–260 2 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
P00921 23om Carbonic anhydrase 2 Author chain B Reference sequence 2–260 2 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
P00921 23on Carbonic anhydrase 2 Author chain A Reference sequence 2–260 1 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
P00921 23on Carbonic anhydrase 2 Author chain B Reference sequence 2–260 1 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
P00921 23on Carbonic anhydrase 2 Author chain A Reference sequence 2–260 2 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
P00921 23on Carbonic anhydrase 2 Author chain B Reference sequence 2–260 2 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
P00921 4cnr CARBONIC ANHYDRASE 2 Author chain A Reference sequence 1–260 1 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
P00921 4cnr CARBONIC ANHYDRASE 2 Author chain B Reference sequence 1–260 1 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
P00921 4cnr CARBONIC ANHYDRASE 2 Author chain C Reference sequence 1–260 1 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
P00921 4cnr CARBONIC ANHYDRASE 2 Author chain D Reference sequence 1–260 1 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
P00921 4cnr CARBONIC ANHYDRASE 2 Author chain A Reference sequence 1–260 2 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
P00921 4cnr CARBONIC ANHYDRASE 2 Author chain B Reference sequence 1–260 2 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
P00921 4cnr CARBONIC ANHYDRASE 2 Author chain C Reference sequence 1–260 2 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
P00921 4cnr CARBONIC ANHYDRASE 2 Author chain D Reference sequence 1–260 2 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
P00921 4cnr CARBONIC ANHYDRASE 2 Author chain A Reference sequence 1–260 3 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
P00921 4cnr CARBONIC ANHYDRASE 2 Author chain B Reference sequence 1–260 3 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
P00921 4cnr CARBONIC ANHYDRASE 2 Author chain C Reference sequence 1–260 3 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
P00921 4cnr CARBONIC ANHYDRASE 2 Author chain D Reference sequence 1–260 3 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
P00921 4cnr CARBONIC ANHYDRASE 2 Author chain A Reference sequence 1–260 4 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
P00921 4cnr CARBONIC ANHYDRASE 2 Author chain B Reference sequence 1–260 4 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
P00921 4cnr CARBONIC ANHYDRASE 2 Author chain C Reference sequence 1–260 4 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
P00921 4cnr CARBONIC ANHYDRASE 2 Author chain D Reference sequence 1–260 4 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
P00921 4cnv CARBONIC ANHYDRASE 2 Author chain A Reference sequence 1–260 1 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
P00921 4cnw CARBONIC ANHYDRASE 2 Author chain A Reference sequence 1–260 1 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
P00921 4cnw CARBONIC ANHYDRASE 2 Author chain B Reference sequence 1–260 1 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
P00921 4cnw CARBONIC ANHYDRASE 2 Author chain A Reference sequence 1–260 2 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
P00921 4cnw CARBONIC ANHYDRASE 2 Author chain B Reference sequence 1–260 2 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
P00921 4cnx CARBONIC ANHYDRASE 2 Author chain A Reference sequence 1–260 1 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
P00921 5a25 CARBONIC ANHYDRASE 2 Author chain A Reference sequence 1–260 1 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
P00921 5a25 CARBONIC ANHYDRASE 2 Author chain B Reference sequence 1–260 1 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
P00921 5a25 CARBONIC ANHYDRASE 2 Author chain A Reference sequence 1–260 2 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
P00921 5a25 CARBONIC ANHYDRASE 2 Author chain B Reference sequence 1–260 2 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
P00921 5ezt Carbonic anhydrase 2 Author chain X Reference sequence 4–260 1 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
P00921 6sks Carbonic anhydrase 2 Author chain A Reference sequence 1–260 1 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
P00921 6skt Carbonic anhydrase 2 Author chain A Reference sequence 1–260 1 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
P00921 6skv Carbonic anhydrase 2 Author chain A Reference sequence 1–260 1 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count

“Homomeric versus heteromeric classification follows protein identity; different constructs of the same UniProt entry still require comparison of reference-sequence ranges, mutations and missing segments. Assemblies marked for review remain visible but are not included in the highest-confidence candidate set.