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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：P04271 New Search
15PDB entries
16Biological assembly
41chain/assembly records
UNP PDB Protein and construct Assembly Composition class Protein state Molecular copy count PDB declaration Consistency status
P04271 1mq1 S-100 protein, beta chain Author chain A Reference sequence 1–91 1 Protein heterocomplex Heteromer Protein 4 tetrameric （4） Consistent with protein count
P04271 1mq1 S-100 protein, beta chain Author chain B Reference sequence 1–91 1 Protein heterocomplex Heteromer Protein 4 tetrameric （4） Consistent with protein count
P04271 1uwo S100B Author chain A Reference sequence 1–91 1 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
P04271 1uwo S100B Author chain B Reference sequence 1–91 1 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
P04271 2h61 Protein S100-B Author chain A Reference sequence 0–91 1 Protein homooligomer Homooligomer Protein 8 octameric （8） Consistent with protein count
P04271 2h61 Protein S100-B Author chain B Reference sequence 0–91 1 Protein homooligomer Homooligomer Protein 8 octameric （8） Consistent with protein count
P04271 2h61 Protein S100-B Author chain C Reference sequence 0–91 1 Protein homooligomer Homooligomer Protein 8 octameric （8） Consistent with protein count
P04271 2h61 Protein S100-B Author chain D Reference sequence 0–91 1 Protein homooligomer Homooligomer Protein 8 octameric （8） Consistent with protein count
P04271 2h61 Protein S100-B Author chain E Reference sequence 0–91 1 Protein homooligomer Homooligomer Protein 8 octameric （8） Consistent with protein count
P04271 2h61 Protein S100-B Author chain F Reference sequence 0–91 1 Protein homooligomer Homooligomer Protein 8 octameric （8） Consistent with protein count
P04271 2h61 Protein S100-B Author chain G Reference sequence 0–91 1 Protein homooligomer Homooligomer Protein 8 octameric （8） Consistent with protein count
P04271 2h61 Protein S100-B Author chain H Reference sequence 0–91 1 Protein homooligomer Homooligomer Protein 8 octameric （8） Consistent with protein count
P04271 2m49 Protein S100-B Author chain B Reference sequence 2–92 1 Protein heterocomplex Heteromer Protein 4 tetrameric （4） Consistent with protein count
P04271 2m49 Protein S100-B Author chain D Reference sequence 2–92 1 Protein heterocomplex Heteromer Protein 4 tetrameric （4） Consistent with protein count
P04271 2pru Protein S100-B Author chain A Reference sequence 2–92 1 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
P04271 2pru Protein S100-B Author chain B Reference sequence 2–92 1 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
P04271 3czt Protein S100-B Author chain X Reference sequence 1–92 1 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
P04271 3d0y Protein S100-B Author chain A Reference sequence 1–92 1 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
P04271 3d0y Protein S100-B Author chain B Reference sequence 1–92 1 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
P04271 3d10 Protein S100-B Author chain A Reference sequence 1–92 1 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
P04271 3d10 Protein S100-B Author chain B Reference sequence 1–92 1 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
P04271 3hcm Protein S100-B Author chain A Reference sequence 1–92 1 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
P04271 3hcm Protein S100-B Author chain B Reference sequence 1–92 1 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
P04271 4xyn Protein S100-B Author chain A Reference sequence 1–92 1 Protein heterocomplex Heteromer Protein 3 trimeric （3） Consistent with protein count
P04271 4xyn Protein S100-B Author chain B Reference sequence 1–92 1 Protein heterocomplex Heteromer Protein 3 trimeric （3） Consistent with protein count
P04271 4xyn Protein S100-B Author chain C Reference sequence 1–92 1 Protein heterocomplex Heteromer Protein 3 trimeric （3） Consistent with protein count
P04271 4xyn Protein S100-B Author chain D Reference sequence 1–92 1 Protein heterocomplex Heteromer Protein 3 trimeric （3） Consistent with protein count
P04271 4xyn Protein S100-B Author chain A Reference sequence 1–92 2 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
P04271 4xyn Protein S100-B Author chain B Reference sequence 1–92 2 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
P04271 4xyn Protein S100-B Author chain C Reference sequence 1–92 2 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
P04271 4xyn Protein S100-B Author chain D Reference sequence 1–92 2 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
P04271 5csf Protein S100-B Author chain A Reference sequence 1–92 1 Protein heterocomplex Heteromer Protein 3 trimeric （3） Consistent with protein count
P04271 5csf Protein S100-B Author chain B Reference sequence 1–92 1 Protein heterocomplex Heteromer Protein 3 trimeric （3） Consistent with protein count
P04271 5csi Protein S100-B Author chain A Reference sequence 1–92 1 Protein heterocomplex Heteromer Protein 3 trimeric （3） Consistent with protein count
P04271 5csi Protein S100-B Author chain B Reference sequence 1–92 1 Protein heterocomplex Heteromer Protein 3 trimeric （3） Consistent with protein count
P04271 5csj Protein S100-B Author chain A Reference sequence 1–92 1 Protein heterocomplex Heteromer Protein 3 trimeric （3） Consistent with protein count
P04271 5csj Protein S100-B Author chain B Reference sequence 1–92 1 Protein heterocomplex Heteromer Protein 3 trimeric （3） Consistent with protein count
P04271 5csn Protein S100-B Author chain A Reference sequence 1–92 1 Protein heterocomplex Heteromer Protein 3 trimeric （3） Consistent with protein count
P04271 5csn Protein S100-B Author chain B Reference sequence 1–92 1 Protein heterocomplex Heteromer Protein 3 trimeric （3） Consistent with protein count
P04271 5d7f Protein S100-B Author chain A Reference sequence 1–92 1 Protein heterocomplex Heteromer Protein 3 trimeric （3） Consistent with protein count
P04271 5d7f Protein S100-B Author chain B Reference sequence 1–92 1 Protein heterocomplex Heteromer Protein 3 trimeric （3） 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.