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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：Q4DA73 New Search
13PDB entries
19Biological assembly
62chain/assembly records
UNP PDB Protein and construct Assembly Composition class Protein state Molecular copy count PDB declaration Consistency status
Q4DA73 3bwb Spermidine synthase Author chain A Reference sequence 1–296 1 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
Q4DA73 3bwb Spermidine synthase Author chain B Reference sequence 1–296 1 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
Q4DA73 3bwc Spermidine synthase Author chain A Reference sequence 1–296 1 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
Q4DA73 3bwc Spermidine synthase Author chain B Reference sequence 1–296 1 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
Q4DA73 4yuv Spermidine synthase, putative Author chain A Reference sequence 1–296 1 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
Q4DA73 4yuv Spermidine synthase, putative Author chain B Reference sequence 1–296 1 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
Q4DA73 4yuw Spermidine synthase, putative Author chain A Reference sequence 1–296 1 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
Q4DA73 4yuw Spermidine synthase, putative Author chain B Reference sequence 1–296 1 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
Q4DA73 4yux Spermidine synthase, putative Author chain A Reference sequence 1–296 1 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
Q4DA73 4yux Spermidine synthase, putative Author chain B Reference sequence 1–296 1 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
Q4DA73 4yuy Spermidine synthase, putative Author chain A Reference sequence 1–296 1 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
Q4DA73 4yuy Spermidine synthase, putative Author chain B Reference sequence 1–296 1 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
Q4DA73 4yuz Spermidine synthase, putative Author chain A Reference sequence 1–296 1 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
Q4DA73 4yuz Spermidine synthase, putative Author chain B Reference sequence 1–296 1 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
Q4DA73 4yuz Spermidine synthase, putative Author chain C Reference sequence 1–296 1 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
Q4DA73 4yuz Spermidine synthase, putative Author chain D Reference sequence 1–296 1 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
Q4DA73 4yuz Spermidine synthase, putative Author chain A Reference sequence 1–296 2 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
Q4DA73 4yuz Spermidine synthase, putative Author chain B Reference sequence 1–296 2 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
Q4DA73 4yuz Spermidine synthase, putative Author chain C Reference sequence 1–296 2 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
Q4DA73 4yuz Spermidine synthase, putative Author chain D Reference sequence 1–296 2 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
Q4DA73 4yv0 Spermidine synthase, putative Author chain A Reference sequence 1–296 1 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
Q4DA73 4yv0 Spermidine synthase, putative Author chain B Reference sequence 1–296 1 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
Q4DA73 4yv0 Spermidine synthase, putative Author chain C Reference sequence 1–296 1 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
Q4DA73 4yv0 Spermidine synthase, putative Author chain D Reference sequence 1–296 1 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
Q4DA73 4yv0 Spermidine synthase, putative Author chain A Reference sequence 1–296 2 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
Q4DA73 4yv0 Spermidine synthase, putative Author chain B Reference sequence 1–296 2 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
Q4DA73 4yv0 Spermidine synthase, putative Author chain C Reference sequence 1–296 2 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
Q4DA73 4yv0 Spermidine synthase, putative Author chain D Reference sequence 1–296 2 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
Q4DA73 4yv1 Spermidine synthase, putative Author chain A Reference sequence 1–296 1 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
Q4DA73 4yv1 Spermidine synthase, putative Author chain B Reference sequence 1–296 1 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
Q4DA73 4yv1 Spermidine synthase, putative Author chain C Reference sequence 1–296 1 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
Q4DA73 4yv1 Spermidine synthase, putative Author chain D Reference sequence 1–296 1 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
Q4DA73 4yv1 Spermidine synthase, putative Author chain A Reference sequence 1–296 2 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
Q4DA73 4yv1 Spermidine synthase, putative Author chain B Reference sequence 1–296 2 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
Q4DA73 4yv1 Spermidine synthase, putative Author chain C Reference sequence 1–296 2 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
Q4DA73 4yv1 Spermidine synthase, putative Author chain D Reference sequence 1–296 2 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
Q4DA73 4yv2 Spermidine synthase, putative Author chain A Reference sequence 1–296 1 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
Q4DA73 4yv2 Spermidine synthase, putative Author chain B Reference sequence 1–296 1 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
Q4DA73 5b1s Spermidine synthase, putative Author chain A Reference sequence 1–296 1 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
Q4DA73 5b1s Spermidine synthase, putative Author chain B Reference sequence 1–296 1 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
Q4DA73 5b1s Spermidine synthase, putative Author chain C Reference sequence 1–296 1 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
Q4DA73 5b1s Spermidine synthase, putative Author chain D Reference sequence 1–296 1 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
Q4DA73 5b1s Spermidine synthase, putative Author chain A Reference sequence 1–296 2 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
Q4DA73 5b1s Spermidine synthase, putative Author chain B Reference sequence 1–296 2 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
Q4DA73 5b1s Spermidine synthase, putative Author chain C Reference sequence 1–296 2 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
Q4DA73 5b1s Spermidine synthase, putative Author chain D Reference sequence 1–296 2 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
Q4DA73 5y4p Spermidine synthase, putative Author chain A Reference sequence 1–296 1 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
Q4DA73 5y4p Spermidine synthase, putative Author chain B Reference sequence 1–296 1 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
Q4DA73 5y4p Spermidine synthase, putative Author chain C Reference sequence 1–296 1 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
Q4DA73 5y4p Spermidine synthase, putative Author chain D Reference sequence 1–296 1 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
Q4DA73 5y4p Spermidine synthase, putative Author chain A Reference sequence 1–296 2 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
Q4DA73 5y4p Spermidine synthase, putative Author chain B Reference sequence 1–296 2 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
Q4DA73 5y4p Spermidine synthase, putative Author chain C Reference sequence 1–296 2 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
Q4DA73 5y4p Spermidine synthase, putative Author chain D Reference sequence 1–296 2 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
Q4DA73 5y4q Spermidine synthase, putative Author chain A Reference sequence 1–296 1 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
Q4DA73 5y4q Spermidine synthase, putative Author chain B Reference sequence 1–296 1 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
Q4DA73 5y4q Spermidine synthase, putative Author chain C Reference sequence 1–296 1 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
Q4DA73 5y4q Spermidine synthase, putative Author chain D Reference sequence 1–296 1 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
Q4DA73 5y4q Spermidine synthase, putative Author chain A Reference sequence 1–296 2 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
Q4DA73 5y4q Spermidine synthase, putative Author chain B Reference sequence 1–296 2 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
Q4DA73 5y4q Spermidine synthase, putative Author chain C Reference sequence 1–296 2 Protein homooligomer Homooligomer Protein 2 dimeric （2） Consistent with protein count
Q4DA73 5y4q Spermidine synthase, putative Author chain D Reference sequence 1–296 2 Protein homooligomer Homooligomer Protein 2 dimeric （2） 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.