4pl8

X-ray diffraction
2Å resolution

Structure of rabbit skeletal muscle actin in complex with a hybrid peptide comprising thymosin beta4 and the lysine-rich region of Cordon-Bleu

Released:
Primary publication:
Structural basis of thymosin-β4/profilin exchange leading to actin filament polymerization.
Proc Natl Acad Sci U S A 111 E4596-605 (2014)
PMID: 25313062

Function and Biology Details

Structure analysis Details

Assembly composition:
hetero trimer (preferred)
PDBe Complex ID:
PDB-CPX-130838 (preferred)
Entry contents:
2 distinct polypeptide molecules
Macromolecules (2 distinct):
Actin, alpha skeletal muscle Chains: A, B
Molecule details ›
Chains: A, B
Length: 375 amino acids
Theoretical weight: 41.88 KDa
Source organism: Oryctolagus cuniculus
UniProt:
  • Canonical: P68135 (Residues: 3-377; Coverage: 100%)
Gene names: ACTA, ACTA1
Sequence domains: Actin
Structure domains:
Protein cordon-bleu; Thymosin beta-4 Chain: H
Molecule details ›
Chain: H
Length: 73 amino acids
Theoretical weight: 8.33 KDa
Source organism: Homo sapiens
Expression system: Not provided
UniProt:
  • Canonical: O75128 (Residues: 1092-1106; Coverage: 1%)
  • Canonical: P62328 (Residues: 2-44; Coverage: 98%)
Gene names: COBL, KIAA0633, TB4X, THYB4, TMSB4, TMSB4X
Sequence domains: Thymosin beta-4 family

Ligands and Environments

2 bound ligands:
1 modified residue:

Experiments and Validation Details

Entry percentile scores
X-ray source: NSRRC BEAMLINE BL13B1
Spacegroup: P43212
Unit cell:
a: 93.64Å b: 93.64Å c: 206.274Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.173 0.171 0.207
Expression system: Not provided