› 1zbk

X-ray diffraction
2.9Å resolution

Recognition of specific peptide sequences by signalling protein from sheep mammary gland (SPS-40): Crystal structure of the complex of SPS-40 with a peptide Trp-Pro-Trp at 2.9A resolution

Released:
DOI: 10.2210/pdb1zbk/pdb
PDB entry 1zbk coloured by chain, front view.
PDB entry 1zbk coloured by chain, side view.
PDB entry 1zbk coloured by chain, top view.
Source organisms:
Entry authors: Srivastava DB, Ethayathulla AS, Kumar J, Singh N, Somvanshi RK, Sharma S, Dey S, Singh TP

Function and Biology Details

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

Structure analysis Details

Assembly composition:
hetero dimer (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-552609 (preferred)
Entry contents:
2 distinct polypeptide molecules
Macromolecules (2 distinct):
Chitinase-3-like protein 1 Chain: A
Molecule details ›
Chain: A
Length: 361 amino acids
Theoretical weight: 40.61 KDa
Source organism: Ovis aries
PEPTIDE TRP-PRO-TRP Chain: C
Molecule details ›
Chain: C
Length: 3 amino acids
Theoretical weight: 488 Da
Source organism: Synthetic construct
Expression system: Not provided

Ligands and Environments

1 bound ligand:
Ligand NAG 2 x NAG
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: RIGAKU RU300
Spacegroup: P212121
Unit cell:
a: 62.64Å b: 66.45Å c: 107.44Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.209 0.207 0.235
Expression system: Not provided

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