5e4w

X-ray diffraction
2.8Å resolution

Crystal structure of cpSRP43 chromodomains 2 and 3 in complex with the Alb3 tail

Released:

Function and Biology Details

Structure analysis Details

Assemblies composition:
hetero trimer (preferred)
hetero hexamer
PDBe Complex ID:
PDB-CPX-127623 (preferred)
Entry contents:
3 distinct polypeptide molecules
Macromolecules (3 distinct):
Thioredoxin 1 Chains: A, B
Molecule details ›
Chains: A, B
Length: 109 amino acids
Theoretical weight: 11.74 KDa
Source organism: Escherichia coli O157:H7
Expression system: Escherichia coli
UniProt:
  • Canonical: P0AA27 (Residues: 3-109; Coverage: 98%)
Gene names: ECs4714, Z5291, trxA
Sequence domains: Thioredoxin
Structure domains: Glutaredoxin
Signal recognition particle 43 kDa protein, chloroplastic Chains: C, D
Molecule details ›
Chains: C, D
Length: 105 amino acids
Theoretical weight: 12.03 KDa
Source organism: Arabidopsis thaliana
Expression system: Escherichia coli
UniProt:
  • Canonical: O22265 (Residues: 265-369; Coverage: 28%)
Gene names: At2g47450, CAO, CPSRP43, T30B22.25
Sequence domains: Chromo (CHRromatin Organisation MOdifier) domain
Structure domains: OB fold (Dihydrolipoamide Acetyltransferase, E2P)
Inner membrane protein ALBINO3, chloroplastic Chains: E, F
Molecule details ›
Chains: E, F
Length: 9 amino acids
Theoretical weight: 1.15 KDa
Source organism: Arabidopsis thaliana
Expression system: Escherichia coli
UniProt:
  • Canonical: Q8LBP4 (Residues: 453-461; Coverage: 2%)
Gene names: ALB3, At2g28800, F8N16.9

Ligands and Environments

2 bound ligands:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: ESRF BEAMLINE ID29
Spacegroup: P21212
Unit cell:
a: 79.592Å b: 163.668Å c: 37.43Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.252 0.25 0.292
Expression system: Escherichia coli