5MBY

Crystal Structure of Arg184Gln mutant of Human Prolidase with Mn ions and GlyPro ligand


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.55 Å
  • R-Value Free: 0.174 
  • R-Value Work: 0.156 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structural basis for prolidase deficiency disease mechanisms.

Wilk, P.Uehlein, M.Piwowarczyk, R.Dobbek, H.Mueller, U.Weiss, M.S.

(2018) FEBS J. 285: 3422-3441

  • DOI: 10.1111/febs.14620
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Prolidase is a metallopeptidase that cleaves iminodipeptides containing a proline (Pro) or hydroxyproline (Hyp) residue at their C-terminal end. The disease prolidase deficiency (PD) is a rare recessive human disorder characterized by reduced prolida ...

    Prolidase is a metallopeptidase that cleaves iminodipeptides containing a proline (Pro) or hydroxyproline (Hyp) residue at their C-terminal end. The disease prolidase deficiency (PD) is a rare recessive human disorder characterized by reduced prolidase activity. PD manifests itself by a wide range of severe clinical symptoms, most commonly as skin ulceration, recurrent infections of the respiratory tract, and mental retardation. Several mutations in the PEPD gene have been identified that are responsible for the loss or the reduction of prolidase activity. In contrast, the structural basis of enzyme inactivation has so far remained elusive. In this study, we present high resolution crystal structures of a number of human prolidase (HsProl) variants, in which single amino acids are either substituted by others or deleted. The observed implications of the mutations on the three-dimensional structure of HsProl are reported and discussed and related to their enzymatic activity. The resulting structures may be divided into four groups depending on the presumed effect of the corresponding mutations on the reaction mechanism. The four possible inactivation mechanisms, which could be elucidated, are disruption of the catalytic Mn 2 (OH - )-center, introduction of chain disorder along with the displacement of important active site residues, rigidification of the active site, and flexibilization of the active site.


    Organizational Affiliation

    Institut für Biologie, Strukturbiologie/Biochemie, Humboldt-Universität zu Berlin, Germany.,Helmholtz-Zentrum Berlin, Macromolecular Crystallography (HZB-MX), Germany.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Xaa-Pro dipeptidase
A, B
485Homo sapiensMutation(s): 1 
Gene Names: PEPD (PRD)
EC: 3.4.13.9
Find proteins for P12955 (Homo sapiens)
Go to Gene View: PEPD
Go to UniProtKB:  P12955
Small Molecules
Ligands 5 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
MN
Query on MN

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Download CCD File 
A, B
MANGANESE (II) ION
Mn
WAEMQWOKJMHJLA-UHFFFAOYSA-N
 Ligand Interaction
GLY
Query on GLY

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Download CCD File 
A, B
GLYCINE
C2 H5 N O2
DHMQDGOQFOQNFH-UHFFFAOYSA-N
 Ligand Interaction
GOL
Query on GOL

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Download CCD File 
A, B
GLYCEROL
GLYCERIN; PROPANE-1,2,3-TRIOL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N
 Ligand Interaction
OH
Query on OH

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Download CCD File 
A, B
HYDROXIDE ION
H O
XLYOFNOQVPJJNP-UHFFFAOYSA-M
 Ligand Interaction
PRO
Query on PRO

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Download CCD File 
A, B
PROLINE
C5 H9 N O2
ONIBWKKTOPOVIA-BYPYZUCNSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

Unit Cell:
Length (Å)Angle (°)
a = 103.568α = 90.00
b = 107.091β = 90.00
c = 217.373γ = 90.00
Software Package:
Software NamePurpose
PHENIXrefinement
XDSdata reduction
XSCALEdata scaling
PDB_EXTRACTdata extraction
PHASERphasing
XDSdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2017-12-20
    Type: Initial release
  • Version 1.1: 2018-08-15
    Type: Data collection, Database references
  • Version 1.2: 2018-09-26
    Type: Data collection, Database references