8ro8

Human cohesin SMC1A-HD(longCC-EQ)/RAD21-C complex - Apo closed P-loop conformation

Method: X-RAY DIFFRACTION Dmax: 96.6 Å Quality: GOOD

1. Protein Identity and Related Structures Protein Identity & Related Structures

Structural maintenance of chromosomes protein 1A

Homo sapiens

UniProt Q14683

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Protein heterocomplex Heteromer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain A; UniProt 1–200 Chain A; UniProt 992–1233 Mutation:E1157Q 64-kDa C-terminal product × 1 (O60216) X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;293 K;0.2 M sodium malonate dibasic monohydrate; 0.1 M Bis-Tris propane pH 6.5; 20% w/v PEG 3350 Resolution 1.90 Å R-free 0.231

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

12 other PDB entries and 14 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name SMC1A_HUMAN
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–200; UniProt 1–200 Author chain A; PDBConstruct 215–456; UniProt 992–1233

64-kDa C-terminal product

Homo sapiens

UniProt O60216

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Protein heterocomplex Heteromer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain B; UniProt 558–629 Not recorded Structural maintenance of chromosomes protein 1A × 1 (Q14683) X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;293 K;0.2 M sodium malonate dibasic monohydrate; 0.1 M Bis-Tris propane pH 6.5; 20% w/v PEG 3350 Resolution 1.90 Å R-free 0.231

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

35 other PDB entries and 41 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name RAD21_HUMAN
Isoform
PDB entities 2
Chains and sequence ranges Author chain B; PDBConstruct 2–73; UniProt 558–629

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.

SAXS scattering curve SAXS Profile

SAXS profile for 8ro8

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 8ro8
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2. Structure Basics 2. Structure Basics

Entry ID entry_id8ro8
Deposition date deposition_date2024-01-11
Structure title titleHuman cohesin SMC1A-HD(longCC-EQ)/RAD21-C complex - Apo closed P-loop conformation
Keywords keywords3D genome organization, Chromatin, Cohesin, ATPase activity, ATPase cycle, NUCLEAR PROTEIN; NUCLEAR PROTEIN
Experimental Method methodX-RAY DIFFRACTION

3. SAXS Parameters (CRYSOL theoretical calculation) 3. SAXS Parameters (CRYSOL)

Radius of gyration Rg (Guinier) rg_guinier25.51
Radius of gyration Rg (electron density) rg_electron24.62
Forward intensity I(0) i034128800.00
Molecular weight molecular_weight46199.0 kDa
Excluded volume excluded_volume58358 ų
Envelope volume envelope_volume70822 ų
Hydration-shell volume shell_volume25017 ų
Envelope diameter envelope_diameter99.9
Shell Rg shell_rg30.49
Envelope Rg envelope_rg25.22
Shape Rg shape_rg24.59
Total Rg total_rg25.41
Total atoms total_atoms3258
Residues n_residues413
Spherical-harmonic order n_harmonics20
q range q_range— – 0.5000 −1
Data points n_points101
Shell type shell_typedirectional
Solvent electron density solvent_density0.3340 e/ų
Shell contrast contrast_shell0.0300 e/ų
CRYSOL version crysol_version4.1.3

4. P(r) Distance Distribution (GNOM inversion) 4. P(r) Analysis (GNOM)

Maximum dimension Dmax dmax96.6
Rg (real space) rg_real25.57
Rg uncertainty (real space) rg_real_error0.86
I(0) (real space) i0_real3.4130e+07
I(0) uncertainty (real space) i0_real_error5.3170e+05
Rg (reciprocal space) rg_reciprocal25.55
I(0) (reciprocal space) i0_reciprocal34130000.0000
Solution quality estimate total_estimate0.8248
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary29.6
Skewness Skewness skewness0.467
Kurtosis Kurtosis kurtosis0.082
Angular range angular_range— – 0.3100 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha6602000.0000
Real-space data points n_real_points63
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.629; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.853; Smooth: 0.980

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (3)

8. Citations (1)

9. Files and Curves (10)