1AKL

ALKALINE PROTEASE FROM PSEUDOMONAS AERUGINOSA IFO3080


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Free: 0.225 
  • R-Value Work: 0.197 
  • R-Value Observed: 0.197 

wwPDB Validation   3D Report Full Report


This is version 1.4 of the entry. See complete history


Literature

Crystal structure of the unliganded alkaline protease from Pseudomonas aeruginosa IFO3080 and its conformational changes on ligand binding.

Miyatake, H.Hata, Y.Fujii, T.Hamada, K.Morihara, K.Katsube, Y.

(1995) J Biochem 118: 474-479

  • DOI: 10.1093/oxfordjournals.jbchem.a124932
  • Primary Citation of Related Structures:  
    1AKL

  • PubMed Abstract: 
  • The crystal structure of the unliganded alkaline protease from Pseudomonas aeruginosa IFO3080 has been determined at 2.0 A resolution by the X-ray method. The enzyme consists of N-terminal catalytic and C-terminal beta-helix domains. On structural comparison between the present unliganded enzyme and structurally- known liganded enzyme, some structural changes were observed around the active site ...

    The crystal structure of the unliganded alkaline protease from Pseudomonas aeruginosa IFO3080 has been determined at 2.0 A resolution by the X-ray method. The enzyme consists of N-terminal catalytic and C-terminal beta-helix domains. On structural comparison between the present unliganded enzyme and structurally- known liganded enzyme, some structural changes were observed around the active site. In the unliganded enzyme, Y216 serves as the fifth ligand for the active site zinc ion. On ligand binding, Y216 may move to form a hydrogen-bond with the carbonyl oxygen of the P1 residue of a ligand peptide. D191 in the flexible loop, Y190 to D196, over the active site cleft forms hydrogen-bonds with the backbone atoms of the P1 and P2 residues of the ligand to close the entrance to the cleft. The water molecule which is the fourth ligand for the zinc ion is replaced by the carbonyl oxygen of the P1 residue. These structural changes around the active site may reflect the substrate-binding mode during the enzymatic reaction.


    Related Citations: 
    • Crystal Structure Determination of Alkaline Protease from Pseudomonas Aeruginosa Strain Pao1
      Miyatake, H., Hata, Y., Fujii, T., Morihara, K., Katsube, Y.
      (1993) Photon Factory Activity Report 11: 108

    Organizational Affiliation

    Institute for Chemical Research, Kyoto University.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
ALKALINE PROTEASEA470Pseudomonas aeruginosaMutation(s): 0 
EC: 3.4.24.40
UniProt
Find proteins for Q03023 (Pseudomonas aeruginosa (strain ATCC 15692 / DSM 22644 / CIP 104116 / JCM 14847 / LMG 12228 / 1C / PRS 101 / PAO1))
Explore Q03023 
Go to UniProtKB:  Q03023
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Free: 0.225 
  • R-Value Work: 0.197 
  • R-Value Observed: 0.197 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 77.16α = 90
b = 176.69β = 90
c = 51.12γ = 90
Software Package:
Software NamePurpose
X-PLORmodel building
X-PLORrefinement
WEISdata reduction
X-PLORphasing

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 1996-03-08
    Type: Initial release
  • Version 1.1: 2008-03-03
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2014-03-12
    Changes: Other
  • Version 1.4: 2017-10-11
    Changes: Data collection, Other