› 1tk2

X-ray diffraction
1.54Å resolution

Crystal Structure of the Complex formed between Alkaline Proteinase Savinase and Gramicidin S at 1.5A Resolution

Released:
DOI: 10.2210/pdb1tk2/pdb
PDB entry 1tk2 coloured by chain, front view.
PDB entry 1tk2 coloured by chain, side view.
PDB entry 1tk2 coloured by chain, top view.
Source organisms:
Entry authors: Bhatt VS, Kaur P, Klupsch S, Betzel C, Brenner S, Singh TP

Function and Biology Details

Reaction catalysed: 
Hydrolysis of proteins with broad specificity for peptide bonds, and a preference for a large uncharged residue in P1. Hydrolyzes peptide amides.
Biochemical function:
Biological process:
Cellular component:
Sequence domains:
Structure domain:

Structure analysis Details

Assembly composition:
hetero dimer (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-151552 (preferred)
Entry contents:
2 distinct polypeptide molecules
Macromolecules (2 distinct):
Subtilisin Savinase Chain: A
Molecule details ›
Chain: A
Length: 269 amino acids
Theoretical weight: 26.72 KDa
Source organism: Lederbergia lenta
UniProt:
  • Canonical: P29600 (Residues: 1-269; Coverage: 100%)
Sequence domains: Subtilase family
Structure domains: Peptidase S8/S53 domain
GRAMICIDIN S Chain: B
Molecule details ›
Chain: B
Length: 10 amino acids
Theoretical weight: 1.16 KDa
Source organism: Brevibacillus brevis
Expression system: Not provided

Ligands and Environments

1 bound ligand:
Ligand CA 2 x CA
2 modified residues:
Ligand ORN 2 x ORN
Ligand DPN 2 x DPN

Experiments and Validation Details

Entry percentile scores
X-ray source: EMBL/DESY, HAMBURG BEAMLINE X11
Spacegroup: P212121
Unit cell:
a: 76.25Å b: 73.34Å c: 40.89Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.17 0.169 0.189
Expression system: Not provided

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