1IVY

PHYSIOLOGICAL DIMER HPP PRECURSOR


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.2 Å
  • R-Value Free: 0.268 
  • R-Value Work: 0.213 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Three-dimensional structure of the human 'protective protein': structure of the precursor form suggests a complex activation mechanism.

Rudenko, G.Bonten, E.d'Azzo, A.Hol, W.G.

(1995) Structure 3: 1249-1259


  • PubMed Abstract: 
  • The human 'protective protein' (HPP) forms a multi-enzyme complex with beta-galactosidase and neuraminidase in the lysosomes, protecting these two glycosidases from degradation. In humans, deficiency of HPP leads to the lysosomal storage disease gala ...

    The human 'protective protein' (HPP) forms a multi-enzyme complex with beta-galactosidase and neuraminidase in the lysosomes, protecting these two glycosidases from degradation. In humans, deficiency of HPP leads to the lysosomal storage disease galactosialidosis. Proteolytic cleavage of the precursor form of HPP involves removal of a 2 kDa excision peptide and results in a carboxypeptidase activity. The physiological relevance of this activity is, as yet, unknown.


    Related Citations: 
    • Expression of Cdna Encoding the Human 'Protective Protein' Associated with Lysosomal Beta-Galactosidase and Neuraminidase: Homology to Yeast Proteases
      Galjart, N.J.,Gillemans, N.,Harris, A.,Van Der Horst, G.T.,Verheijen, F.W.,Galjaard, H.,D'Azzo, A.
      (1988) Cell 54: 755
    • Structure Determination of the Human Protective Protein: Twofold Averaging Reveals the Three-Dimensional Structure of a Domain which Was Entirely Absent in the Initial Model
      Rudenko, G.,Bonten, E.,D'Azzo, A.,Hol, W.G.J.
      (1996) Acta Crystallogr.,Sect.D 52: 923


    Organizational Affiliation

    Department of Biological Structure, School of Medicine, University of Washington, Seattle 98195-7742, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
HUMAN PROTECTIVE PROTEIN
A, B
452Homo sapiensGene Names: CTSA (PPGB)
EC: 3.4.16.5
Find proteins for P10619 (Homo sapiens)
Go to Gene View: CTSA
Go to UniProtKB:  P10619
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
NDG
Query on NDG

Download SDF File 
Download CCD File 
A
2-(ACETYLAMINO)-2-DEOXY-A-D-GLUCOPYRANOSE
C8 H15 N O6
OVRNDRQMDRJTHS-PVFLNQBWSA-N
 Ligand Interaction
NAG
Query on NAG

Download SDF File 
Download CCD File 
A, B
N-ACETYL-D-GLUCOSAMINE
C8 H15 N O6
OVRNDRQMDRJTHS-FMDGEEDCSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.2 Å
  • R-Value Free: 0.268 
  • R-Value Work: 0.213 
  • Space Group: P 21 21 2
Unit Cell:
Length (Å)Angle (°)
a = 115.040α = 90.00
b = 148.110β = 90.00
c = 80.970γ = 90.00
Software Package:
Software NamePurpose
MOSFLMdata reduction
TRUNCATEdata reduction
X-PLORrefinement
ROTAVATAdata scaling
X-PLORphasing
AGROVATAdata reduction
X-PLORmodel building
ROTAVATAdata reduction
CCP4data scaling
TRUNCATE)data scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1997-04-21
    Type: Initial release
  • Version 1.1: 2008-03-24
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Non-polymer description, Version format compliance