5EPZ

Human Angiogenin in complex with sulphate anions at a basic solution


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.85 Å
  • R-Value Free: 0.217 
  • R-Value Work: 0.183 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

The ammonium sulfate inhibition of human angiogenin.

Chatzileontiadou, D.S.Tsirkone, V.G.Dossi, K.Kassouni, A.G.Liggri, P.G.Kantsadi, A.L.Stravodimos, G.A.Balatsos, N.A.Skamnaki, V.T.Leonidas, D.D.

(2016) Febs Lett. 590: 3005-3018

  • DOI: 10.1002/1873-3468.12335
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • In this study, we investigate the inhibition of human angiogenin by ammonium sulfate. The inhibitory potency of ammonium sulfate for human angiogenin (IC50 = 123.5 ± 14.9 mm) is comparable to that previously reported for RNase A (119.0 ± 6.5 mm) and ...

    In this study, we investigate the inhibition of human angiogenin by ammonium sulfate. The inhibitory potency of ammonium sulfate for human angiogenin (IC50 = 123.5 ± 14.9 mm) is comparable to that previously reported for RNase A (119.0 ± 6.5 mm) and RNase 2 (95.7 ± 9.3 mm). However, analysis of two X-ray crystal structures of human angiogenin in complex with sulfate anions (in acidic and basic pH environments, respectively) indicates an entirely distinct mechanism of inhibition. While ammonium sulfate inhibits the ribonucleolytic activity of RNase A and RNase 2 by binding to the active site of these enzymes, sulfate anions bind only to peripheral substrate anion-binding subsites of human angiogenin, and not to the active site.


    Organizational Affiliation

    Institute of Biology, Medicinal Chemistry & Biotechnology, National Hellenic Research Foundation, Athens, Greece.,Department of Biochemistry and Biotechnology, University of Thessaly, Larissa, Greece.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Angiogenin
A
120Homo sapiensMutation(s): 0 
Gene Names: ANG (RNASE5)
EC: 3.1.27.-
Find proteins for P03950 (Homo sapiens)
Go to Gene View: ANG
Go to UniProtKB:  P03950
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
SO4
Query on SO4

Download SDF File 
Download CCD File 
A
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
GOL
Query on GOL

Download SDF File 
Download CCD File 
A
GLYCEROL
GLYCERIN; PROPANE-1,2,3-TRIOL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.85 Å
  • R-Value Free: 0.217 
  • R-Value Work: 0.183 
  • Space Group: P 21 21 2
Unit Cell:
Length (Å)Angle (°)
a = 82.330α = 90.00
b = 37.420β = 90.00
c = 42.580γ = 90.00
Software Package:
Software NamePurpose
MOLREPphasing
REFMACrefinement
SCALAdata scaling
iMOSFLMdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2016-08-17
    Type: Initial release
  • Version 1.1: 2016-09-14
    Type: Database references
  • Version 1.2: 2018-01-17
    Type: Data collection