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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：P03903 New Search
31PDB entries
31Biological assembly
32chain/assembly records
UNP PDB Protein and construct Assembly Composition class Protein state Molecular copy count PDB declaration Consistency status
P03903 6g2j NADH-ubiquinone oxidoreductase chain 4L Author chain K Reference sequence 1–98 1 Protein heterocomplex Heteromer Protein 45 45-meric （45） Consistent with protein count
P03903 6g72 NADH-ubiquinone oxidoreductase chain 4L Author chain K Reference sequence 1–98 1 Protein heterocomplex Heteromer Protein 45 45-meric （45） Consistent with protein count
P03903 6zr2 NADH-ubiquinone oxidoreductase chain 4L Author chain K Reference sequence 1–98 1 Protein heterocomplex Heteromer Protein 45 45-meric （45） Consistent with protein count
P03903 6ztq NADH-ubiquinone oxidoreductase chain 4L Author chain K Reference sequence 1–98 1 Protein heterocomplex Heteromer Protein 45 45-meric （45） Consistent with protein count
P03903 7ak5 NADH-ubiquinone oxidoreductase chain 4L Author chain K Reference sequence 1–98 1 Protein heterocomplex Heteromer Protein 45 45-meric （45） Consistent with protein count
P03903 7ak6 NADH-ubiquinone oxidoreductase chain 4L Author chain K Reference sequence 1–98 1 Protein heterocomplex Heteromer Protein 45 45-meric （45） Consistent with protein count
P03903 7b93 NADH-ubiquinone oxidoreductase chain 4L Author chain K Reference sequence 1–98 1 Protein heterocomplex Heteromer Protein 45 45-meric （45） Consistent with protein count
P03903 7psa NADH-ubiquinone oxidoreductase chain 4L Author chain K Reference sequence 1–98 1 Protein heterocomplex Heteromer Protein 45 45-meric （45） Consistent with protein count
P03903 8c2s NADH-ubiquinone oxidoreductase chain 4L Author chain K Reference sequence 1–98 1 Protein heterocomplex Heteromer Protein 43 43-meric （43） Consistent with protein count
P03903 8ca3 NADH-ubiquinone oxidoreductase chain 4L Author chain K Reference sequence 1–98 1 Protein heterocomplex Heteromer Protein 43 43-meric （43） Consistent with protein count
P03903 8ca5 NADH-ubiquinone oxidoreductase chain 4L Author chain K Reference sequence 1–98 1 Protein heterocomplex Heteromer Protein 43 43-meric （43） Consistent with protein count
P03903 8iao NADH-ubiquinone oxidoreductase chain 4L Author chain K Reference sequence 1–98 1 Protein heterocomplex Heteromer Protein 67 67-meric （67） Consistent with protein count
P03903 8iaq NADH-ubiquinone oxidoreductase chain 4L Author chain K Reference sequence 1–98 1 Protein heterocomplex Heteromer Protein 24 24-meric （24） Consistent with protein count
P03903 8ib4 NADH-ubiquinone oxidoreductase chain 4L Author chain K Reference sequence 1–98 1 Protein heterocomplex Heteromer Protein 66 66-meric （66） Consistent with protein count
P03903 8ib6 NADH-ubiquinone oxidoreductase chain 4L Author chain K Reference sequence 1–98 1 Protein heterocomplex Heteromer Protein 24 24-meric （24） Consistent with protein count
P03903 8ib9 NADH-ubiquinone oxidoreductase chain 4L Author chain K Reference sequence 1–98 1 Protein heterocomplex Heteromer Protein 66 66-meric （66） Consistent with protein count
P03903 8ibb NADH-ubiquinone oxidoreductase chain 4L Author chain K Reference sequence 1–98 1 Protein heterocomplex Heteromer Protein 24 24-meric （24） Consistent with protein count
P03903 8ibd NADH-ubiquinone oxidoreductase chain 4L Author chain K Reference sequence 1–98 1 Protein heterocomplex Heteromer Protein 67 67-meric （67） Consistent with protein count
P03903 8ibf NADH-ubiquinone oxidoreductase chain 4L Author chain K Reference sequence 1–98 1 Protein heterocomplex Heteromer Protein 24 24-meric （24） Consistent with protein count
P03903 8ic2 NADH-ubiquinone oxidoreductase chain 4L Author chain K Reference sequence 1–98 1 Protein heterocomplex Heteromer Protein 66 66-meric （66） Consistent with protein count
P03903 8ic4 NADH-ubiquinone oxidoreductase chain 4L Author chain K Reference sequence 1–98 1 Protein heterocomplex Heteromer Protein 24 24-meric （24） Consistent with protein count
P03903 8olt NADH-ubiquinone oxidoreductase chain 4L Author chain K Reference sequence 1–98 1 Protein heterocomplex Heteromer Protein 45 45-meric （45） Consistent with protein count
P03903 8om1 NADH-ubiquinone oxidoreductase chain 4L Author chain K Reference sequence 1–98 1 Protein heterocomplex Heteromer Protein 45 45-meric （45） Consistent with protein count
P03903 8pw5 NADH-ubiquinone oxidoreductase chain 4L Author chain K1 Reference sequence 1–98 1 Protein heterocomplex Heteromer Protein 92 92-meric （92） Consistent with protein count
P03903 8pw6 NADH-ubiquinone oxidoreductase chain 4L Author chain K1 Reference sequence 1–98 1 Protein heterocomplex Heteromer Protein 79 79-meric （79） Consistent with protein count
P03903 8pw7 NADH-ubiquinone oxidoreductase chain 4L Author chain K1 Reference sequence 1–98 1 Protein heterocomplex Heteromer Protein 79 79-meric （79） Consistent with protein count
P03903 8rgp NADH-ubiquinone oxidoreductase chain 4L Author chain K Reference sequence 1–98 1 Protein heterocomplex Heteromer Protein 45 45-meric （45） Consistent with protein count
P03903 8rgq NADH-ubiquinone oxidoreductase chain 4L Author chain K Reference sequence 1–98 1 Protein heterocomplex Heteromer Protein 45 45-meric （45） Consistent with protein count
P03903 8rgr NADH-ubiquinone oxidoreductase chain 4L Author chain K Reference sequence 1–98 1 Protein heterocomplex Heteromer Protein 45 45-meric （45） Consistent with protein count
P03903 8rgt NADH-ubiquinone oxidoreductase chain 4L Author chain K Reference sequence 1–98 1 Protein heterocomplex Heteromer Protein 45 45-meric （45） Consistent with protein count
P03903 8uca NADH-ubiquinone oxidoreductase chain 4L Author chain 4L Reference sequence 1–98 1 Protein heterocomplex Heteromer Protein 111 111-meric （111） Consistent with protein count
P03903 8uca NADH-ubiquinone oxidoreductase chain 4L Author chain 4l Reference sequence 1–98 1 Protein heterocomplex Heteromer Protein 111 111-meric （111） 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.