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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：P21912 New Search
6PDB entries
6Biological assembly
7chain/assembly records
UNP PDB Protein and construct Assembly Composition class Protein state Molecular copy count PDB declaration Consistency status
P21912 7kcl Succinate dehydrogenase [ubiquinone] iron-sulfur subunit, mitochondrial Author chain C Reference sequence 29–160 1 Protein heterocomplex Heteromer Protein 3 trimeric （3） Consistent with protein count
P21912 7kcm Succinate dehydrogenase [ubiquinone] iron-sulfur subunit, mitochondrial Author chain C Reference sequence 29–160 1 Protein heterocomplex Heteromer Protein 3 trimeric （3） Consistent with protein count
P21912 7klu Heat shock protein 75 kDa, mitochondrial, SpyTag, Succinate dehydrogenase [ubiquinone] iron-sulfur subunit, mitochondrial (chimera) Author chain B Reference sequence 29–160 1 Insufficient information Heteromer Protein 4 tetrameric （4） Consistent with protein count
P21912 7klu Heat shock protein 75 kDa, mitochondrial, SpyTag, Succinate dehydrogenase [ubiquinone] iron-sulfur subunit, mitochondrial (chimera) Author chain C Reference sequence 29–160 1 Insufficient information Heteromer Protein 4 tetrameric （4） Consistent with protein count
P21912 7klv Heat shock protein 75 kDa, mitochondrial, SpyTag, Succinate dehydrogenase [ubiquinone] iron-sulfur subunit, mitochondrial (chimera) Author chain B Reference sequence 29–160 1 Insufficient information Heteromer Protein 2 dimeric （2） Consistent with protein count
P21912 8gs8 Succinate dehydrogenase [ubiquinone] iron-sulfur subunit, mitochondrial Author chain B Reference sequence 1–280 1 Protein heterocomplex Heteromer Protein 4 tetrameric （4） Consistent with protein count
P21912 9kc4 Succinate dehydrogenase [ubiquinone] iron-sulfur subunit, mitochondrial Author chain B Reference sequence 1–280 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.