3BSQ

Crystal structure of human kallikrein 7 produced as a secretion protein in E.coli


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.8 Å
  • R-Value Free: 0.291 
  • R-Value Work: 0.217 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Crystal structure of human epidermal kallikrein 7 (hK7) synthesized directly in its native state in E. coli: insights into the atomic basis of its inhibition by LEKTI domain 6 (LD6)

Fernandez, I.S.Standker, L.Magert, H.J.Forssmann, W.G.Gimenez-Gallego, G.Romero, A.

(2008) J.Mol.Biol. 377: 1488-1497

  • DOI: 10.1016/j.jmb.2008.01.089

  • PubMed Abstract: 
  • Human kallikrein 7, a major protease of human skin, has been synthesized directly in its native conformation in Escherichia coli by forcing the secretion of the newly synthesized polypeptide into the bacterial periplasm. The procedure yields a stable ...

    Human kallikrein 7, a major protease of human skin, has been synthesized directly in its native conformation in Escherichia coli by forcing the secretion of the newly synthesized polypeptide into the bacterial periplasm. The procedure yields a stable kallikrein 7 with highly specific activity that is inhibited efficiently by its specific inhibitor LEKTI domain 6. The protein was crystallized, and its three-dimensional structure was solved in the absence of protease inhibitors. The structure obtained agrees with that reported recently for human tissue kallikrein 7 crystallized in the presence of protease inhibitors from a preparation obtained in a baculovirus protein expression system. A model of the interaction between the protease and its inhibitor is proposed on the basis of both the three-dimensional structure of human tissue kallikrein 7 reported here and that of the LEKTI domain 6 solved previously by NMR.


    Organizational Affiliation

    Departamento de Ciencia de Proteínas, Centro de Investigaciones Biológicas-CSIC, Ramiro de Maeztu 9, 28040 Madrid, Spain.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Kallikrein-7
A, B, C
227Homo sapiensMutation(s): 0 
Gene Names: KLK7 (PRSS6, SCCE)
EC: 3.4.21.117
Find proteins for P49862 (Homo sapiens)
Go to Gene View: KLK7
Go to UniProtKB:  P49862
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
SO4
Query on SO4

Download SDF File 
Download CCD File 
A, B, C
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.8 Å
  • R-Value Free: 0.291 
  • R-Value Work: 0.217 
  • Space Group: H 3 2
Unit Cell:
Length (Å)Angle (°)
a = 113.580α = 90.00
b = 113.580β = 90.00
c = 326.390γ = 120.00
Software Package:
Software NamePurpose
REFMACrefinement
MOSFLMdata reduction
PDB_EXTRACTdata extraction
ADSCdata collection
SCALAdata scaling
MOLREPphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2008-04-29
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Advisory, Version format compliance