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8i4v

Cryo-EM structure of 5-subunit Smc5/6 arm region

Method: ELECTRON MICROSCOPY
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1. Protein Identity and Related Structures Protein Identity & Related Structures

Structural maintenance of chromosomes protein 5

Saccharomyces cerevisiae S288C

UniProt Q08204

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 4 Structural maintenance of chromosomes protein 6 × 1 （Q12749） E3 SUMO-protein ligase MMS21 × 1 （P38632） DNA repair protein KRE29 × 1 （P40026） 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
3htk 7p47 7qcd 7tve 7yqh 8hqs 8i21 8i4u 8i4v 8i4w 8i4x 8t8f

15 assemblies; showing the first 12

View Construct and Data Evidence
UniProt name SMC5_YEAST
Isoform —
PDB entities 1
Chains and sequence ranges Author chain A； PDBConstruct 1–1069； UniProt 25–1093

Structural maintenance of chromosomes protein 6

Saccharomyces cerevisiae S288C

UniProt Q12749

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 4 Structural maintenance of chromosomes protein 5 × 1 （Q08204） E3 SUMO-protein ligase MMS21 × 1 （P38632） DNA repair protein KRE29 × 1 （P40026） 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
7qcd 7tve 7yqh 8hqs 8i21 8i4u 8i4v 8i4w 8i4x 8t8e 8t8f 8wjl

14 assemblies; showing the first 12

View Construct and Data Evidence
UniProt name SMC6_YEAST
Isoform —
PDB entities 2
Chains and sequence ranges Author chain B； PDBConstruct 1–1114； UniProt 1–1114

E3 SUMO-protein ligase MMS21

Saccharomyces cerevisiae S288C

UniProt P38632

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 4 Structural maintenance of chromosomes protein 5 × 1 （Q08204） Structural maintenance of chromosomes protein 6 × 1 （Q12749） DNA repair protein KRE29 × 1 （P40026） 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
3htk 7p47 7qcd 7yqh 8i21 8i4u 8i4v 8i4x 8wjl 8wjo

10 assemblies

View Construct and Data Evidence
UniProt name NSE2_YEAST
Isoform —
PDB entities 3
Chains and sequence ranges Author chain C； PDBConstruct 1–251； UniProt 4–254

DNA repair protein KRE29

Saccharomyces cerevisiae S288C

UniProt P40026

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 4 Structural maintenance of chromosomes protein 5 × 1 （Q08204） Structural maintenance of chromosomes protein 6 × 1 （Q12749） E3 SUMO-protein ligase MMS21 × 1 （P38632） 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
6j0w 6j0w 7lto 7ogg 7sde 7yqh 8hqs 8i4v 8i4w 8i4x 8t8e 8t8f

13 assemblies; showing the first 12

View Construct and Data Evidence
UniProt name KRE29_YEAST
Isoform —
PDB entities 4
Chains and sequence ranges Author chain D； PDBConstruct 1–64； UniProt 87–150

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_id8i4v
Deposition date deposition_date2023-01-21
Structure title titleCryo-EM structure of 5-subunit Smc5/6 arm region
Keywords keywordsCELL CYCLE; CELL CYCLE
Experimental Method methodELECTRON MICROSCOPY
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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.

8i4v__assembly_1__model_1

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

Download this curve (.dat)

8i4v__assembly_1__model_1 | I(q)

10-2 10-1 106 107 108 q (1/Angstrom) I(q)
100 plotted points; both axes use logarithmic scales.

8i4v__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）52.95 Å
Rg (electron density)54.17 Å
Total Rg53.89 Å
Atom count7041
Residues864
Excluded volume125390 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 8i4v__assembly_1__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 (4)

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7. Citations (1)