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3fwc

Sac3:Sus1:Cdc31 complex

Method: X-RAY DIFFRACTION
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1. Protein Identity and Related Structures Protein Identity & Related Structures

Cell division control protein 31

Saccharomyces cerevisiae

UniProt P06704

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 4 Nuclear mRNA export protein SAC3 × 1 （P46674） Protein SUS1 × 2 （Q6WNK7） SULFATE ION × 1 water × 3 Consistent with protein count
2 Protein heterocomplex Heteromer Protein 4 Nuclear mRNA export protein SAC3 × 1 （P46674） Protein SUS1 × 2 （Q6WNK7） SULFATE ION × 1 water × 4 Consistent with protein count
3 Protein heterocomplex Heteromer Protein 4 Nuclear mRNA export protein SAC3 × 1 （P46674） Protein SUS1 × 2 （Q6WNK7） SULFATE ION × 1 water × 4 Consistent with protein count
4 Protein heterocomplex Heteromer Protein 4 Nuclear mRNA export protein SAC3 × 1 （P46674） Protein SUS1 × 2 （Q6WNK7） SULFATE ION × 1 water × 4 Consistent with protein count

Other States of the Same Protein in the Database

Monomer

None

Homodimer

None

Homotetramer

None

Other homooligomers

None

Heteromeric or nucleic-acid complex
2doq 2gv5 2gv5 3fwb 3fwc 3fwc 3fwc 3fwc 4mbe 4mbe

10 assemblies

View Construct and Data Evidence
UniProt name CDC31_YEAST
Isoform —
PDB entities 1
Chains and sequence ranges Author chain A； PDBConstruct 1–161； UniProt 1–161 Author chain E； PDBConstruct 1–161； UniProt 1–161 Author chain I； PDBConstruct 1–161； UniProt 1–161 Author chain M； PDBConstruct 1–161； UniProt 1–161

Nuclear mRNA export protein SAC3

Saccharomyces cerevisiae

UniProt P46674

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 4 Cell division control protein 31 × 1 （P06704） Protein SUS1 × 2 （Q6WNK7） SULFATE ION × 1 water × 3 Consistent with protein count
2 Protein heterocomplex Heteromer Protein 4 Cell division control protein 31 × 1 （P06704） Protein SUS1 × 2 （Q6WNK7） SULFATE ION × 1 water × 4 Consistent with protein count
3 Protein heterocomplex Heteromer Protein 4 Cell division control protein 31 × 1 （P06704） Protein SUS1 × 2 （Q6WNK7） SULFATE ION × 1 water × 4 Consistent with protein count
4 Protein heterocomplex Heteromer Protein 4 Cell division control protein 31 × 1 （P06704） Protein SUS1 × 2 （Q6WNK7） SULFATE ION × 1 water × 4 Consistent with protein count

Other States of the Same Protein in the Database

Monomer

None

Homodimer

None

Homotetramer

None

Other homooligomers

None

Heteromeric or nucleic-acid complex
3fwb 3fwc 3fwc 3fwc 3fwc 3t5v 3t5v 4c31 4mbe 4mbe 4trq 5g5p

14 assemblies; showing the first 12

View Construct and Data Evidence
UniProt name SAC3_YEAST
Isoform —
PDB entities 2
Chains and sequence ranges Author chain B； PDBConstruct 3–85； UniProt 723–805 Author chain F； PDBConstruct 3–85； UniProt 723–805 Author chain J； PDBConstruct 3–85； UniProt 723–805 Author chain N； PDBConstruct 3–85； UniProt 723–805

Protein SUS1

Saccharomyces cerevisiae

UniProt Q6WNK7

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 4 Cell division control protein 31 × 1 （P06704） Nuclear mRNA export protein SAC3 × 1 （P46674） SULFATE ION × 1 water × 3 Consistent with protein count
2 Protein heterocomplex Heteromer Protein 4 Cell division control protein 31 × 1 （P06704） Nuclear mRNA export protein SAC3 × 1 （P46674） SULFATE ION × 1 water × 4 Consistent with protein count
3 Protein heterocomplex Heteromer Protein 4 Cell division control protein 31 × 1 （P06704） Nuclear mRNA export protein SAC3 × 1 （P46674） SULFATE ION × 1 water × 4 Consistent with protein count
4 Protein heterocomplex Heteromer Protein 4 Cell division control protein 31 × 1 （P06704） Nuclear mRNA export protein SAC3 × 1 （P46674） SULFATE ION × 1 water × 4 Consistent with protein count

Other States of the Same Protein in the Database

Monomer

None

Homodimer

None

Homotetramer

None

Other homooligomers

None

Heteromeric or nucleic-acid complex
3fwb 3fwc 3fwc 3fwc 3fwc 3kik 3kik 3kik 3kik 3kjl 3kjl 3kjl

29 assemblies; showing the first 12

View Construct and Data Evidence
UniProt name SUS1_YEAST
Isoform —
PDB entities 3
Chains and sequence ranges Author chain C； PDBConstruct 1–96； UniProt 1–96 Author chain D； PDBConstruct 1–96； UniProt 1–96 Author chain G； PDBConstruct 1–96； UniProt 1–96 Author chain H； PDBConstruct 1–96； UniProt 1–96 Author chain K； PDBConstruct 1–96； UniProt 1–96 Author chain L； PDBConstruct 1–96； UniProt 1–96 Author chain O； PDBConstruct 1–96； UniProt 1–96 Author chain P； PDBConstruct 1–96； UniProt 1–96

The page prioritizes protein identity, the current assembly, associated components, oligomeric state and cross-PDB links. Chain mapping and sequence ranges are retained as data evidence. Internal IDs, import timestamps and assembly operation expressions are maintenance fields and are not shown here.

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2. Structure Basics 2. Structure Basics

Entry ID entry_id3fwc
Deposition date deposition_date2009-01-17
Structure title titleSac3:Sus1:Cdc31 complex
Keywords keywords;gene gating, complex, Calcium, Cell cycle, Cell division, Mitosis, mRNA transport, Nuclear pore complex, Nucleus, Phosphoprotein, Protein transport, Translocation, Transport, Acetylation, Transcription, Transcription regulation ;; cell cycle, transcription
Experimental Method methodX-RAY DIFFRACTION
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3. Official assembly/model SAXS Official SAXS Profiles

This page reads only the latest assembly calculations. Every curve maps to an explicit PDB entry, official biological assembly and coordinate model.

3fwc__assembly_1__model_1

Assembly 1 · Model 1 · CRYSOL 4.1.3-1-20251215 (887e7ef)

Download this curve (.dat)

3fwc__assembly_1__model_1 | I(q)

10-2 10-1 105 106 107 q (1/Angstrom) I(q)
100 plotted points; both axes use logarithmic scales.

3fwc__assembly_1__model_1 | P(r) · Pending

The new assembly/model P(r) has not been calculated yet This placeholder does not display legacy data r (Angstrom) P(r)
P(r) will be calculated and displayed separately for the same assembly/model.
Rg（Guinier）36.67 Å
Rg (electron density)37.92 Å
Total Rg37.68 Å
Atom count3308
Residues401
Excluded volume59011 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 3fwc__assembly_1__model_1 tetrameric （4） Success 4.1.3-1-20251215 (887e7ef) View Download
2 1 3fwc__assembly_2__model_1 tetrameric （4） Success 4.1.3-1-20251215 (887e7ef) View Download
3 1 3fwc__assembly_3__model_1 tetrameric （4） Success 4.1.3-1-20251215 (887e7ef) View Download
4 1 3fwc__assembly_4__model_1 tetrameric （4） Success 4.1.3-1-20251215 (887e7ef) View Download
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4. Crystallography and Experiment 4. Crystallography & Experiment

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5. Entities and Polymers Entities & Polymers (5)

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6. Fold Classification (SCOP + CATH) 28 domains

SCOP 2.08 (12 domains)

Domain ID domain_idd3fwca_
Class classa — All alpha proteins
Fold Fold folda.39 — EF Hand-like
Superfamily Superfamily superfamilya.39.1 — EF-hand
Family Family familya.39.1.5 — Calmodulin-like
Domain ID domain_idd3fwcc_
Class classa — All alpha proteins
Fold Fold folda.301 — Sus1-like
Superfamily Superfamily superfamilya.301.1 — Sus1-like
Family Family familya.301.1.1 — Sus1-like
Domain ID domain_idd3fwcd_
Class classa — All alpha proteins
Fold Fold folda.301 — Sus1-like
Superfamily Superfamily superfamilya.301.1 — Sus1-like
Family Family familya.301.1.1 — Sus1-like
Domain ID domain_idd3fwce_
Class classa — All alpha proteins
Fold Fold folda.39 — EF Hand-like
Superfamily Superfamily superfamilya.39.1 — EF-hand
Family Family familya.39.1.5 — Calmodulin-like
Domain ID domain_idd3fwcg_
Class classa — All alpha proteins
Fold Fold folda.301 — Sus1-like
Superfamily Superfamily superfamilya.301.1 — Sus1-like
Family Family familya.301.1.1 — Sus1-like
Domain ID domain_idd3fwch_
Class classa — All alpha proteins
Fold Fold folda.301 — Sus1-like
Superfamily Superfamily superfamilya.301.1 — Sus1-like
Family Family familya.301.1.1 — Sus1-like
Domain ID domain_idd3fwci_
Class classa — All alpha proteins
Fold Fold folda.39 — EF Hand-like
Superfamily Superfamily superfamilya.39.1 — EF-hand
Family Family familya.39.1.5 — Calmodulin-like
Domain ID domain_idd3fwck_
Class classa — All alpha proteins
Fold Fold folda.301 — Sus1-like
Superfamily Superfamily superfamilya.301.1 — Sus1-like
Family Family familya.301.1.1 — Sus1-like
Domain ID domain_idd3fwcl_
Class classa — All alpha proteins
Fold Fold folda.301 — Sus1-like
Superfamily Superfamily superfamilya.301.1 — Sus1-like
Family Family familya.301.1.1 — Sus1-like
Domain ID domain_idd3fwcm_
Class classa — All alpha proteins
Fold Fold folda.39 — EF Hand-like
Superfamily Superfamily superfamilya.39.1 — EF-hand
Family Family familya.39.1.5 — Calmodulin-like
Domain ID domain_idd3fwco_
Class classa — All alpha proteins
Fold Fold folda.301 — Sus1-like
Superfamily Superfamily superfamilya.301.1 — Sus1-like
Family Family familya.301.1.1 — Sus1-like
Domain ID domain_idd3fwcp_
Class classa — All alpha proteins
Fold Fold folda.301 — Sus1-like
Superfamily Superfamily superfamilya.301.1 — Sus1-like
Family Family familya.301.1.1 — Sus1-like

CATH v4.4 (16 domains)

Domain ID domain_id3fwcA01
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology238 — Recoverin; domain 1
Homologous superfamily homologous superfamily10 — EF-hand
Domain ID domain_id3fwcB00
Class class6 — Special
Architecture architecture10 — Helix non-globular
Topology topology250 — Single alpha-helices involved in coiled-coils or other helix-helix interfaces
Homologous superfamily homologous superfamily2880 —
Domain ID domain_id3fwcC00
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology246 — Serum Albumin; Chain A, Domain 1
Homologous superfamily homologous superfamily140 — ENY2/SUS1
Domain ID domain_id3fwcD00
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology246 — Serum Albumin; Chain A, Domain 1
Homologous superfamily homologous superfamily140 — ENY2/SUS1
Domain ID domain_id3fwcE01
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology238 — Recoverin; domain 1
Homologous superfamily homologous superfamily10 — EF-hand
Domain ID domain_id3fwcF00
Class class6 — Special
Architecture architecture10 — Helix non-globular
Topology topology250 — Single alpha-helices involved in coiled-coils or other helix-helix interfaces
Homologous superfamily homologous superfamily2880 —
Domain ID domain_id3fwcG00
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology246 — Serum Albumin; Chain A, Domain 1
Homologous superfamily homologous superfamily140 — ENY2/SUS1
Domain ID domain_id3fwcH00
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology246 — Serum Albumin; Chain A, Domain 1
Homologous superfamily homologous superfamily140 — ENY2/SUS1
Domain ID domain_id3fwcI01
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology238 — Recoverin; domain 1
Homologous superfamily homologous superfamily10 — EF-hand
Domain ID domain_id3fwcJ00
Class class6 — Special
Architecture architecture10 — Helix non-globular
Topology topology250 — Single alpha-helices involved in coiled-coils or other helix-helix interfaces
Homologous superfamily homologous superfamily2880 —
Domain ID domain_id3fwcK00
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology246 — Serum Albumin; Chain A, Domain 1
Homologous superfamily homologous superfamily140 — ENY2/SUS1
Domain ID domain_id3fwcL00
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology246 — Serum Albumin; Chain A, Domain 1
Homologous superfamily homologous superfamily140 — ENY2/SUS1
Domain ID domain_id3fwcM01
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology238 — Recoverin; domain 1
Homologous superfamily homologous superfamily10 — EF-hand
Domain ID domain_id3fwcN00
Class class6 — Special
Architecture architecture10 — Helix non-globular
Topology topology250 — Single alpha-helices involved in coiled-coils or other helix-helix interfaces
Homologous superfamily homologous superfamily2880 —
Domain ID domain_id3fwcO00
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology246 — Serum Albumin; Chain A, Domain 1
Homologous superfamily homologous superfamily140 — ENY2/SUS1
Domain ID domain_id3fwcP00
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology246 — Serum Albumin; Chain A, Domain 1
Homologous superfamily homologous superfamily140 — ENY2/SUS1
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7. Citations (1)