1KN9

CRYSTAL STRUCTURE OF A BACTERIAL SIGNAL PEPTIDASE APO-ENZYME, IMPLICATIONS FOR SIGNAL PEPTIDE BINDING AND THE SER-LYS DYAD MECHANISM.

Structural Biology Knowledgebase: 1KN9 SBKB.org


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.4 Å
  • R-Value Free: 0.278
  • R-Value Work: 0.239

Literature

Macromolecules
Sequence Display for 1KN9

Classification: HYDROLASE

Total Structure Weight: 111867.48

Macromolecule Entities
Molecule Chains Length Organism Details
Signal peptidase I A, B, C, D 249 Escherichia coli EC#: 3.4.21.89 IUBMB
Fragment: Residues 76-323, plus initiating methionine
Gene Name(s): lepB b2568 JW2552
Metabolic Pathways
Maps:       
Reactions:
ESCHER  BiGG

Membrane Protein

Source: mpstruc | Group: MONOTOPIC MEMBRANE PROTEINS

Subgroup Name: Peptidases

Protein Name: LepB Signal Peptidase (SPase) in complex with a β-lactam inhibitor



Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.4 Å
  • R-Value Free: 0.278
  • R-Value Work: 0.239
  • Space Group: P 41 21 2

Unit Cell:

Length (Å) Angle (°)
a = 112.44 α = 90.00
b = 112.44 β = 90.00
c = 198.68 γ = 90.00

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History

Deposition Data

  • Deposited Date: 2001-12-18
  • Released Date: 2002-01-30
  • Deposition author(s): Paetzel, M., Dalbey, R.E., Strynadka, N.C.J.

Revision History

  • 2011-07-13
    Type: Version format compliance | Details: compliance with PDB Exchange Dictionary V4