4l8r

X-ray diffraction
2.6Å resolution

Structure of mrna stem-loop, human stem-loop binding protein and 3'hexo ternary complex

Released:

Function and Biology Details

Structure analysis Details

Assemblies composition:
hetero trimer (preferred)
hetero dimer
PDBe Complex ID:
PDB-CPX-172013 (preferred)
Entry contents:
2 distinct polypeptide molecules
1 distinct RNA molecule
Macromolecules (3 distinct):
3'-5' exoribonuclease 1 Chains: B, E
Molecule details ›
Chains: B, E
Length: 303 amino acids
Theoretical weight: 35.82 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: Q8IV48 (Residues: 55-349; Coverage: 85%)
Gene names: 3'EXO, ERI1, THEX1
Sequence domains:
Structure domains: Ribonuclease H-like superfamily/Ribonuclease H
Histone RNA hairpin-binding protein Chain: C
Molecule details ›
Chain: C
Length: 120 amino acids
Theoretical weight: 14.07 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: Q14493 (Residues: 125-223; Coverage: 37%)
Gene names: HBP, SLBP
Sequence domains: Histone RNA hairpin-binding protein RNA-binding domain
Structure domains: Histone RNA hairpin-binding protein RNA-binding domain
HISTONE MRNA STEM-LOOP Chains: A, D
Molecule details ›
Chains: A, D
Length: 26 nucleotides
Theoretical weight: 8.22 KDa
Sequence domains: Histone 3' UTR stem-loop

Ligands and Environments

No bound ligands
1 modified residue:

Experiments and Validation Details

Entry percentile scores
X-ray source: NSLS BEAMLINE X29A
Spacegroup: P212121
Unit cell:
a: 81.758Å b: 90.802Å c: 128.636Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.199 0.199 0.249
Expression system: Escherichia coli BL21(DE3)