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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：P04166 New Search
8PDB entries
24Biological assembly
79chain/assembly records
UNP PDB Protein and construct Assembly Composition class Protein state Molecular copy count PDB declaration Consistency status
P04166 1awp CYTOCHROME B5 Author chain A Reference sequence 13–103 1 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
P04166 1awp CYTOCHROME B5 Author chain B Reference sequence 13–103 1 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
P04166 1b5m CYTOCHROME B5 Author chain A Reference sequence 19–102 1 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
P04166 1eue CYTOCHROME B5 Author chain A Reference sequence 6–91 1 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
P04166 1eue CYTOCHROME B5 Author chain B Reference sequence 6–91 1 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
P04166 1eue CYTOCHROME B5 Author chain A Reference sequence 6–91 2 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
P04166 1eue CYTOCHROME B5 Author chain B Reference sequence 6–91 2 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
P04166 1icc CYTOCHROME B5 OUTER MITOCHONDRIAL MEMBRANE ISOFORM Author chain A Reference sequence 17–103 1 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
P04166 1icc CYTOCHROME B5 OUTER MITOCHONDRIAL MEMBRANE ISOFORM Author chain B Reference sequence 17–103 1 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
P04166 1icc CYTOCHROME B5 OUTER MITOCHONDRIAL MEMBRANE ISOFORM Author chain C Reference sequence 17–103 1 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
P04166 1icc CYTOCHROME B5 OUTER MITOCHONDRIAL MEMBRANE ISOFORM Author chain D Reference sequence 17–103 1 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
P04166 1icc CYTOCHROME B5 OUTER MITOCHONDRIAL MEMBRANE ISOFORM Author chain A Reference sequence 17–103 2 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
P04166 1icc CYTOCHROME B5 OUTER MITOCHONDRIAL MEMBRANE ISOFORM Author chain B Reference sequence 17–103 2 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
P04166 1icc CYTOCHROME B5 OUTER MITOCHONDRIAL MEMBRANE ISOFORM Author chain C Reference sequence 17–103 2 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
P04166 1icc CYTOCHROME B5 OUTER MITOCHONDRIAL MEMBRANE ISOFORM Author chain D Reference sequence 17–103 2 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
P04166 1icc CYTOCHROME B5 OUTER MITOCHONDRIAL MEMBRANE ISOFORM Author chain A Reference sequence 17–103 3 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
P04166 1icc CYTOCHROME B5 OUTER MITOCHONDRIAL MEMBRANE ISOFORM Author chain B Reference sequence 17–103 3 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
P04166 1icc CYTOCHROME B5 OUTER MITOCHONDRIAL MEMBRANE ISOFORM Author chain C Reference sequence 17–103 3 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
P04166 1icc CYTOCHROME B5 OUTER MITOCHONDRIAL MEMBRANE ISOFORM Author chain D Reference sequence 17–103 3 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
P04166 1icc CYTOCHROME B5 OUTER MITOCHONDRIAL MEMBRANE ISOFORM Author chain A Reference sequence 17–103 4 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
P04166 1icc CYTOCHROME B5 OUTER MITOCHONDRIAL MEMBRANE ISOFORM Author chain B Reference sequence 17–103 4 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
P04166 1icc CYTOCHROME B5 OUTER MITOCHONDRIAL MEMBRANE ISOFORM Author chain C Reference sequence 17–103 4 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
P04166 1icc CYTOCHROME B5 OUTER MITOCHONDRIAL MEMBRANE ISOFORM Author chain D Reference sequence 17–103 4 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
P04166 1icc CYTOCHROME B5 OUTER MITOCHONDRIAL MEMBRANE ISOFORM Author chain A Reference sequence 17–103 5 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
P04166 1icc CYTOCHROME B5 OUTER MITOCHONDRIAL MEMBRANE ISOFORM Author chain B Reference sequence 17–103 5 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
P04166 1icc CYTOCHROME B5 OUTER MITOCHONDRIAL MEMBRANE ISOFORM Author chain C Reference sequence 17–103 5 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
P04166 1icc CYTOCHROME B5 OUTER MITOCHONDRIAL MEMBRANE ISOFORM Author chain D Reference sequence 17–103 5 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
P04166 1lj0 Cytochrome B5 outer mitochondrial membrane isoform Author chain A Reference sequence 12–103 1 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
P04166 1lj0 Cytochrome B5 outer mitochondrial membrane isoform Author chain B Reference sequence 12–103 1 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
P04166 1lj0 Cytochrome B5 outer mitochondrial membrane isoform Author chain C Reference sequence 12–103 1 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
P04166 1lj0 Cytochrome B5 outer mitochondrial membrane isoform Author chain D Reference sequence 12–103 1 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
P04166 1lj0 Cytochrome B5 outer mitochondrial membrane isoform Author chain A Reference sequence 12–103 2 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
P04166 1lj0 Cytochrome B5 outer mitochondrial membrane isoform Author chain B Reference sequence 12–103 2 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
P04166 1lj0 Cytochrome B5 outer mitochondrial membrane isoform Author chain C Reference sequence 12–103 2 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
P04166 1lj0 Cytochrome B5 outer mitochondrial membrane isoform Author chain D Reference sequence 12–103 2 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
P04166 1lj0 Cytochrome B5 outer mitochondrial membrane isoform Author chain A Reference sequence 12–103 3 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
P04166 1lj0 Cytochrome B5 outer mitochondrial membrane isoform Author chain B Reference sequence 12–103 3 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
P04166 1lj0 Cytochrome B5 outer mitochondrial membrane isoform Author chain C Reference sequence 12–103 3 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
P04166 1lj0 Cytochrome B5 outer mitochondrial membrane isoform Author chain D Reference sequence 12–103 3 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
P04166 1lj0 Cytochrome B5 outer mitochondrial membrane isoform Author chain A Reference sequence 12–103 4 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
P04166 1lj0 Cytochrome B5 outer mitochondrial membrane isoform Author chain B Reference sequence 12–103 4 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
P04166 1lj0 Cytochrome B5 outer mitochondrial membrane isoform Author chain C Reference sequence 12–103 4 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
P04166 1lj0 Cytochrome B5 outer mitochondrial membrane isoform Author chain D Reference sequence 12–103 4 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
P04166 1lj0 Cytochrome B5 outer mitochondrial membrane isoform Author chain A Reference sequence 12–103 5 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
P04166 1lj0 Cytochrome B5 outer mitochondrial membrane isoform Author chain B Reference sequence 12–103 5 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
P04166 1lj0 Cytochrome B5 outer mitochondrial membrane isoform Author chain C Reference sequence 12–103 5 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
P04166 1lj0 Cytochrome B5 outer mitochondrial membrane isoform Author chain D Reference sequence 12–103 5 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
P04166 1lj0 Cytochrome B5 outer mitochondrial membrane isoform Author chain A Reference sequence 12–103 6 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
P04166 1lj0 Cytochrome B5 outer mitochondrial membrane isoform Author chain B Reference sequence 12–103 6 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
P04166 1lj0 Cytochrome B5 outer mitochondrial membrane isoform Author chain C Reference sequence 12–103 6 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
P04166 1lj0 Cytochrome B5 outer mitochondrial membrane isoform Author chain D Reference sequence 12–103 6 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
P04166 2i89 Cytochrome b5 type B Author chain A Reference sequence 12–103 1 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
P04166 2i89 Cytochrome b5 type B Author chain B Reference sequence 12–103 1 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
P04166 2i89 Cytochrome b5 type B Author chain C Reference sequence 12–103 1 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
P04166 2i89 Cytochrome b5 type B Author chain D Reference sequence 12–103 1 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
P04166 2i89 Cytochrome b5 type B Author chain A Reference sequence 12–103 2 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
P04166 2i89 Cytochrome b5 type B Author chain B Reference sequence 12–103 2 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
P04166 2i89 Cytochrome b5 type B Author chain C Reference sequence 12–103 2 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
P04166 2i89 Cytochrome b5 type B Author chain D Reference sequence 12–103 2 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
P04166 2i89 Cytochrome b5 type B Author chain A Reference sequence 12–103 3 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
P04166 2i89 Cytochrome b5 type B Author chain B Reference sequence 12–103 3 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
P04166 2i89 Cytochrome b5 type B Author chain C Reference sequence 12–103 3 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
P04166 2i89 Cytochrome b5 type B Author chain D Reference sequence 12–103 3 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
P04166 2i89 Cytochrome b5 type B Author chain A Reference sequence 12–103 4 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
P04166 2i89 Cytochrome b5 type B Author chain B Reference sequence 12–103 4 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
P04166 2i89 Cytochrome b5 type B Author chain C Reference sequence 12–103 4 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
P04166 2i89 Cytochrome b5 type B Author chain D Reference sequence 12–103 4 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
P04166 2i89 Cytochrome b5 type B Author chain A Reference sequence 12–103 5 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
P04166 2i89 Cytochrome b5 type B Author chain B Reference sequence 12–103 5 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
P04166 2i89 Cytochrome b5 type B Author chain C Reference sequence 12–103 5 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
P04166 2i89 Cytochrome b5 type B Author chain D Reference sequence 12–103 5 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
P04166 3mus Cytochrome b5 type B Author chain A Reference sequence 17–102 1 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
P04166 3mus Cytochrome b5 type B Author chain B Reference sequence 17–102 1 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
P04166 3mus Cytochrome b5 type B Author chain A Reference sequence 17–102 2 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
P04166 3mus Cytochrome b5 type B Author chain B Reference sequence 17–102 2 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
P04166 4hil Cytochrome b5 type B Author chain A Reference sequence 17–102 1 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
P04166 4hil Cytochrome b5 type B Author chain B Reference sequence 17–102 1 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
P04166 4hil Cytochrome b5 type B Author chain A Reference sequence 17–102 2 Protein monomer Monomer Protein 1 monomeric （1） Consistent with protein count
P04166 4hil Cytochrome b5 type B Author chain B Reference sequence 17–102 2 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.