6wg6

X-ray diffraction
3.54Å resolution

Crystal structure of human SMC1-SMC3 hinge domain heterodimer in north-open conformation

Released:
Source organism: Homo sapiens
Primary publication:
Cryo-EM structure of the human cohesin-NIPBL-DNA complex.
Science 368 1454-1459 (2020)
PMID: 32409525

Function and Biology Details

Biochemical function:
Biological process:
Cellular component:

Structure analysis Details

Assemblies composition:
hetero trimer (preferred)
hetero dimer
PDBe Complex ID:
PDB-CPX-120835 (preferred)
Entry contents:
2 distinct polypeptide molecules
1 distinct DNA molecule
Macromolecules (3 distinct):
Structural maintenance of chromosomes protein 1A Chains: A, C, E, G, I, K
Molecule details ›
Chains: A, C, E, G, I, K
Length: 233 amino acids
Theoretical weight: 26.71 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli
UniProt:
  • Canonical: Q14683 (Residues: 472-702; Coverage: 19%)
Gene names: DXS423E, KIAA0178, SB1.8, SMC1, SMC1A, SMC1L1
Sequence domains: SMC proteins Flexible Hinge Domain
Structural maintenance of chromosomes protein 3 Chains: B, D, F, H, J, L
Molecule details ›
Chains: B, D, F, H, J, L
Length: 256 amino acids
Theoretical weight: 29.42 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli
UniProt:
  • Canonical: Q9UQE7 (Residues: 466-713; Coverage: 20%)
Gene names: BAM, BMH, CSPG6, SMC3, SMC3L1
Sequence domains: SMC proteins Flexible Hinge Domain
poly(dT) Chains: M, N
Molecule details ›
Chains: M, N
Length: 10 nucleotides
Theoretical weight: 3 KDa

Ligands and Environments

No bound ligands
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: APS BEAMLINE 19-ID
Spacegroup: P212121
Unit cell:
a: 123.985Å b: 145.021Å c: 315.949Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.253 0.252 0.288
Expression system: Escherichia coli