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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：P21953 New Search
24PDB entries
24Biological assembly
25chain/assembly records
UNP PDB Protein and construct Assembly Composition class Protein state Molecular copy count PDB declaration Consistency status
P21953 1dtw BRANCHED-CHAIN ALPHA-KETO ACID DEHYDROGENASE BETA SUBUNIT Author chain B Reference sequence 51–392 1 Protein heterocomplex Heteromer Protein 4 tetrameric （4） Consistent with protein count
P21953 1ols 2-OXOISOVALERATE DEHYDROGENASE BETA SUBUNIT Author chain B Reference sequence 51–392 1 Protein heterocomplex Heteromer Protein 4 tetrameric （4） Consistent with protein count
P21953 1olu 2-OXOISOVALERATE DEHYDROGENASE BETA SUBUNIT Author chain B Reference sequence 51–392 1 Protein heterocomplex Heteromer Protein 4 tetrameric （4） Consistent with protein count
P21953 1olx 2-OXOISOVALERATE DEHYDROGENASE BETA SUBUNIT Author chain B Reference sequence 51–392 1 Protein heterocomplex Heteromer Protein 4 tetrameric （4） Consistent with protein count
P21953 1u5b 2-oxoisovalerate dehydrogenase beta subunit Author chain B Reference sequence 51–392 1 Protein heterocomplex Heteromer Protein 4 tetrameric （4） Consistent with protein count
P21953 1v11 2-OXOISOVALERATE DEHYDROGENASE BETA SUBUNIT Author chain B Reference sequence 51–392 1 Protein heterocomplex Heteromer Protein 4 tetrameric （4） Consistent with protein count
P21953 1v16 2-OXOISOVALERATE DEHYDROGENASE BETA SUBUNIT Author chain B Reference sequence 51–392 1 Protein heterocomplex Heteromer Protein 4 tetrameric （4） Consistent with protein count
P21953 1v1m 2-OXOISOVALERATE DEHYDROGENASE BETA SUBUNIT Author chain B Reference sequence 51–392 1 Protein heterocomplex Heteromer Protein 4 tetrameric （4） Consistent with protein count
P21953 1v1r 2-OXOISOVALERATE DEHYDROGENASE BETA SUBUNIT Author chain B Reference sequence 51–392 1 Protein heterocomplex Heteromer Protein 4 tetrameric （4） Consistent with protein count
P21953 1wci 2-OXOISOVALERATE DEHYDROGENASE BETA SUBUNIT Author chain B Reference sequence 51–392 1 Protein heterocomplex Heteromer Protein 4 tetrameric （4） Consistent with protein count
P21953 1x7w 2-oxoisovalerate dehydrogenase beta subunit Author chain B Reference sequence 51–392 1 Protein heterocomplex Heteromer Protein 4 tetrameric （4） Consistent with protein count
P21953 1x7x 2-oxoisovalerate dehydrogenase beta subunit Author chain B Reference sequence 51–392 1 Protein heterocomplex Heteromer Protein 4 tetrameric （4） Consistent with protein count
P21953 1x7y 2-oxoisovalerate dehydrogenase beta subunit Author chain B Reference sequence 51–392 1 Protein heterocomplex Heteromer Protein 4 tetrameric （4） Consistent with protein count
P21953 1x7z 2-oxoisovalerate dehydrogenase beta subunit Author chain B Reference sequence 51–392 1 Protein heterocomplex Heteromer Protein 4 tetrameric （4） Consistent with protein count
P21953 1x80 2-oxoisovalerate dehydrogenase beta subunit Author chain B Reference sequence 51–392 1 Protein heterocomplex Heteromer Protein 4 tetrameric （4） Consistent with protein count
P21953 2beu 2-OXOISOVALERATE DEHYDROGENASE BETA SUBUNIT Author chain B Reference sequence 51–392 1 Protein heterocomplex Heteromer Protein 6 hexameric （6） Consistent with protein count
P21953 2bev 2-OXOISOVALERATE DEHYDROGENASE BETA SUBUNIT Author chain B Reference sequence 51–392 1 Protein heterocomplex Heteromer Protein 6 hexameric （6） Consistent with protein count
P21953 2bew 2-OXOISOVALERATE DEHYDROGENASE BETA SUBUNIT Author chain B Reference sequence 51–392 1 Protein heterocomplex Heteromer Protein 6 hexameric （6） Consistent with protein count
P21953 2bfb 2-OXOISOVALERATE DEHYDROGENASE BETA SUBUNIT Author chain B Reference sequence 51–392 1 Protein heterocomplex Heteromer Protein 4 tetrameric （4） Consistent with protein count
P21953 2bfc 2-OXOISOVALERATE DEHYDROGENASE BETA SUBUNIT Author chain B Reference sequence 51–392 1 Protein heterocomplex Heteromer Protein 4 tetrameric （4） Consistent with protein count
P21953 2bfd 2-OXOISOVALERATE DEHYDROGENASE BETA SUBUNIT Author chain B Reference sequence 51–392 1 Protein heterocomplex Heteromer Protein 4 tetrameric （4） Consistent with protein count
P21953 2bfe 2-OXOISOVALERATE DEHYDROGENASE BETA SUBUNIT Author chain B Reference sequence 51–392 1 Protein heterocomplex Heteromer Protein 4 tetrameric （4） Consistent with protein count
P21953 2bff 2-OXOISOVALERATE DEHYDROGENASE BETA SUBUNIT Author chain B Reference sequence 51–392 1 Protein heterocomplex Heteromer Protein 4 tetrameric （4） Consistent with protein count
P21953 2j9f 2-OXOISOVALERATE DEHYDROGENASE BETA SUBUNIT Author chain B Reference sequence 51–392 1 Protein heterocomplex Heteromer Protein 4 tetrameric （4） Consistent with protein count
P21953 2j9f 2-OXOISOVALERATE DEHYDROGENASE BETA SUBUNIT Author chain D Reference sequence 51–392 1 Protein heterocomplex Heteromer Protein 4 tetrameric （4） 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.