← Back to search

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：Q13485 New Search
10PDB entries
14Biological assembly
30chain/assembly records
UNP PDB Protein and construct Assembly Composition class Protein state Molecular copy count PDB declaration Consistency status
Q13485 1dd1 SMAD4 Author chain A Reference sequence 285–552 1 Protein homooligomer Homooligomer Protein 3 trimeric （3） Consistent with protein count
Q13485 1dd1 SMAD4 Author chain B Reference sequence 285–552 1 Protein homooligomer Homooligomer Protein 3 trimeric （3） Consistent with protein count
Q13485 1dd1 SMAD4 Author chain C Reference sequence 285–552 1 Protein homooligomer Homooligomer Protein 3 trimeric （3） Consistent with protein count
Q13485 1dd1 SMAD4 Author chain A Reference sequence 285–552 2 Protein homooligomer Homooligomer Protein 6 hexameric （6） Consistent with protein count
Q13485 1dd1 SMAD4 Author chain B Reference sequence 285–552 2 Protein homooligomer Homooligomer Protein 6 hexameric （6） Consistent with protein count
Q13485 1dd1 SMAD4 Author chain C Reference sequence 285–552 2 Protein homooligomer Homooligomer Protein 6 hexameric （6） Consistent with protein count
Q13485 1g88 SMAD4 Author chain A Reference sequence 285–552 1 Protein homooligomer Homooligomer Protein 3 trimeric （3） Consistent with protein count
Q13485 1g88 SMAD4 Author chain B Reference sequence 285–552 1 Protein homooligomer Homooligomer Protein 3 trimeric （3） Consistent with protein count
Q13485 1g88 SMAD4 Author chain C Reference sequence 285–552 1 Protein homooligomer Homooligomer Protein 3 trimeric （3） Consistent with protein count
Q13485 1mr1 Mothers against decapentaplegic homolog 4 Author chain A Reference sequence 319–552 1 Protein heterocomplex Heteromer Protein 2 dimeric （2） Consistent with protein count
Q13485 1mr1 Mothers against decapentaplegic homolog 4 Author chain B Reference sequence 319–552 1 Protein heterocomplex Heteromer Protein 2 dimeric （2） Consistent with protein count
Q13485 1mr1 Mothers against decapentaplegic homolog 4 Author chain A Reference sequence 319–552 2 Protein heterocomplex Heteromer Protein 2 dimeric （2） Consistent with protein count
Q13485 1mr1 Mothers against decapentaplegic homolog 4 Author chain B Reference sequence 319–552 2 Protein heterocomplex Heteromer Protein 2 dimeric （2） Consistent with protein count
Q13485 1u7f Mothers against decapentaplegic homolog 4 Author chain B Reference sequence 314–552 1 Protein heterocomplex Heteromer Protein 3 trimeric （3） Consistent with protein count
Q13485 1u7v Mothers against decapentaplegic homolog 4 Author chain B Reference sequence 314–549 1 Protein heterocomplex Heteromer Protein 3 trimeric （3） Consistent with protein count
Q13485 1ygs SMAD4 Author chain A Reference sequence 319–552 1 Protein homooligomer Homooligomer Protein 3 trimeric （3） Consistent with protein count
Q13485 5c4v Mothers against decapentaplegic homolog 4 Author chain A Reference sequence 314–549 1 Protein heterocomplex Heteromer Protein 2 dimeric （2） Consistent with protein count
Q13485 5c4v Mothers against decapentaplegic homolog 4 Author chain C Reference sequence 314–549 1 Protein heterocomplex Heteromer Protein 2 dimeric （2） Consistent with protein count
Q13485 5c4v Mothers against decapentaplegic homolog 4 Author chain E Reference sequence 314–549 1 Protein heterocomplex Heteromer Protein 2 dimeric （2） Consistent with protein count
Q13485 5c4v Mothers against decapentaplegic homolog 4 Author chain A Reference sequence 314–549 2 Protein heterocomplex Heteromer Protein 2 dimeric （2） Consistent with protein count
Q13485 5c4v Mothers against decapentaplegic homolog 4 Author chain C Reference sequence 314–549 2 Protein heterocomplex Heteromer Protein 2 dimeric （2） Consistent with protein count
Q13485 5c4v Mothers against decapentaplegic homolog 4 Author chain E Reference sequence 314–549 2 Protein heterocomplex Heteromer Protein 2 dimeric （2） Consistent with protein count
Q13485 5c4v Mothers against decapentaplegic homolog 4 Author chain A Reference sequence 314–549 3 Protein heterocomplex Heteromer Protein 2 dimeric （2） Consistent with protein count
Q13485 5c4v Mothers against decapentaplegic homolog 4 Author chain C Reference sequence 314–549 3 Protein heterocomplex Heteromer Protein 2 dimeric （2） Consistent with protein count
Q13485 5c4v Mothers against decapentaplegic homolog 4 Author chain E Reference sequence 314–549 3 Protein heterocomplex Heteromer Protein 2 dimeric （2） Consistent with protein count
Q13485 5mey MH1 domain of human Smad4 Author chain A Reference sequence 10–140 1 Protein–DNA Homooligomer Protein 2 DNA 2 tetrameric （4） Consistent with all polymers
Q13485 5mez MH1 domain of human Smad4 Author chain A Reference sequence 10–140 1 Protein–DNA Homooligomer Protein 2 DNA 2 tetrameric （4） Consistent with all polymers
Q13485 5mez MH1 domain of human Smad4 Author chain B Reference sequence 10–140 1 Protein–DNA Homooligomer Protein 2 DNA 2 tetrameric （4） Consistent with all polymers
Q13485 5mf0 MH1 domain of human Smad4 Author chain A Reference sequence 10–140 1 Protein–DNA Homooligomer Protein 2 DNA 2 tetrameric （4） Consistent with all polymers
Q13485 5mf0 MH1 domain of human Smad4 Author chain B Reference sequence 10–140 1 Protein–DNA Homooligomer Protein 2 DNA 2 tetrameric （4） Consistent with all polymers

“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.