X-ray diffraction
2Å resolution

Crystal structure of the polyketide synthase 1 from huperzia serrata

Source organism: Huperzia serrata
Primary publication:
Synthesis of unnatural alkaloid scaffolds by exploiting plant polyketide synthase.
Proc. Natl. Acad. Sci. U.S.A. 108 13504-9 (2011)
PMID: 21825160

Function and Biology Details

Structure analysis Details

Assembly composition:
homo dimer (preferred)
Entry contents:
1 distinct polypeptide molecule
Chalcone synthase-like polyketide synthase Chain: A
Molecule details ›
Chain: A
Length: 402 amino acids
Theoretical weight: 43.66 KDa
Source organism: Huperzia serrata
Expression system: Escherichia coli
  • Canonical: A3E7Z7 (Residues: 1-399; Coverage: 100%)
Gene name: Pks1
Sequence domains:
Structure domains: Peroxisomal Thiolase; Chain A, domain 1

Ligands and Environments

2 bound ligands:
1 modified residue:

Experiments and Validation Details

Entry percentile scores
X-ray source: SPRING-8 BEAMLINE BL24XU
Spacegroup: I212121
Unit cell:
a: 73.3Å b: 85Å c: 137.7Å
α: 90° β: 90° γ: 90°
R R work R free
0.214 0.211 0.234
Expression system: Escherichia coli