3u1a

X-ray diffraction
2Å resolution

N-terminal 81-aa fragment of smooth muscle tropomyosin alpha

Released:
Source organism: Gallus gallus

Function and Biology Details

Biochemical function:
  • not assigned
Biological process:
  • not assigned
Cellular component:
  • not assigned
Sequence domain:

Structure analysis Details

Assemblies composition:
homo dimer (preferred)
homo tetramer
PDBe Complex ID:
PDB-CPX-137548 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Tropomyosin alpha-1 chain Chains: A, B, C, D
Molecule details ›
Chains: A, B, C, D
Length: 84 amino acids
Theoretical weight: 9.61 KDa
Source organism: Gallus gallus
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: P04268 (Residues: 1-81; Coverage: 29%)
Gene name: TPM1
Sequence domains: Tropomyosin
Structure domains: Single alpha-helices involved in coiled-coils or other helix-helix interfaces

Ligands and Environments

No bound ligands
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: APS BEAMLINE 17-ID
Spacegroup: P212121
Unit cell:
a: 58.768Å b: 63.181Å c: 101.299Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.224 0.222 0.265
Expression system: Escherichia coli BL21(DE3)