1RT9

Structure of human purine nucleoside phosphorylase in complex with Immucillin-H and sulfate


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.30 Å
  • R-Value Free: 0.281 
  • R-Value Work: 0.251 
  • R-Value Observed: 0.254 

Starting Model: experimental
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Ligand Structure Quality Assessment 


This is version 2.1 of the entry. See complete history


Literature

Structural comparison of human and malarial purine nucleoside phosphorylases

Shi, W.Lewandowicz, A.Tyler, P.C.Furneaux, R.H.Almo, S.C.Schramm, V.L.

To be published.

Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Purine nucleoside phosphorylase289Homo sapiensMutation(s): 0 
Gene Names: NPPNP
EC: 2.4.2.1
UniProt & NIH Common Fund Data Resources
Find proteins for P00491 (Homo sapiens)
Explore P00491 
Go to UniProtKB:  P00491
PHAROS:  P00491
GTEx:  ENSG00000198805 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP00491
Sequence Annotations
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  • Reference Sequence
Small Molecules
Binding Affinity Annotations 
IDSourceBinding Affinity
IMH BindingDB:  1RT9 Ki: min: 0.06, max: 72 (nM) from 6 assay(s)
Kd: min: 0.02, max: 0.06 (nM) from 3 assay(s)
IC50: min: 0.06, max: 100 (nM) from 3 assay(s)
ΔH: -3.50e+1 (kJ/mol) from 1 assay(s)
ΔG: -4.56e+1 (kJ/mol) from 1 assay(s)
PDBBind:  1RT9 Ki: 0.06 (nM) from 1 assay(s)
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.30 Å
  • R-Value Free: 0.281 
  • R-Value Work: 0.251 
  • R-Value Observed: 0.254 
  • Space Group: H 3 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 142.076α = 90
b = 142.076β = 90
c = 166.955γ = 120
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
CNSrefinement
CNSphasing

Structure Validation

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Ligand Structure Quality Assessment 


Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2005-02-22
    Type: Initial release
  • Version 1.1: 2008-04-29
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Derived calculations, Version format compliance
  • Version 2.0: 2022-10-05
    Changes: Atomic model, Database references, Derived calculations, Structure summary
  • Version 2.1: 2023-09-20
    Changes: Data collection, Refinement description