4pkg

X-ray diffraction
1.8Å resolution

Complex of ATP-actin With the N-terminal Actin-Binding Domain of Tropomodulin

Released:
Primary publication:
Mechanism of actin filament pointed-end capping by tropomodulin.
Science 345 463-7 (2014)
PMID: 25061212

Function and Biology Details

Structure analysis Details

Assembly composition:
hetero dimer (preferred)
PDBe Complex ID:
PDB-CPX-139008 (preferred)
Entry contents:
2 distinct polypeptide molecules
Macromolecules (2 distinct):
Actin, alpha skeletal muscle Chain: A
Molecule details ›
Chain: A
Length: 377 amino acids
Theoretical weight: 42.11 KDa
Source organism: Oryctolagus cuniculus
UniProt:
  • Canonical: P68135 (Residues: 1-377; Coverage: 100%)
Gene names: ACTA, ACTA1
Sequence domains: Actin
Structure domains:
Gelsolin; Tropomodulin-1 Chain: G
Molecule details ›
Chain: G
Length: 186 amino acids
Theoretical weight: 20.82 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: P06396 (Residues: 52-176, 187-187; Coverage: 17%)
  • Canonical: P28289 (Residues: 51-101; Coverage: 14%)
Gene names: D9S57E, GSN, TMOD, TMOD1
Sequence domains:
Structure domains: Severin

Ligands and Environments

2 bound ligands:
1 modified residue:

Experiments and Validation Details

Entry percentile scores
X-ray source: NSLS BEAMLINE X6A
Spacegroup: P212121
Unit cell:
a: 69.471Å b: 75.866Å c: 136.396Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.157 0.156 0.187
Expression system: Escherichia coli BL21(DE3)