1CB0

STRUCTURE OF HUMAN 5'-DEOXY-5'-METHYLTHIOADENOSINE PHOSPHORYLASE AT 1.7 A RESOLUTION


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.7 Å
  • R-Value Free: 0.202 
  • R-Value Work: 0.181 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

The structure of human 5'-deoxy-5'-methylthioadenosine phosphorylase at 1.7 A resolution provides insights into substrate binding and catalysis.

Appleby, T.C.Erion, M.D.Ealick, S.E.

(1999) Structure Fold.Des. 7: 629-641

  • Primary Citation of Related Structures:  1CG6

  • PubMed Abstract: 
  • 5'-Deoxy-5'-methylthioadenosine phosphorylase (MTAP) catalyzes the reversible phosphorolysis of 5'-deoxy-5'-methylthioadenosine (MTA) to adenine and 5-methylthio-D-ribose-1-phosphate. MTA is a by-product of polyamine biosynthesis, which is essential ...

    5'-Deoxy-5'-methylthioadenosine phosphorylase (MTAP) catalyzes the reversible phosphorolysis of 5'-deoxy-5'-methylthioadenosine (MTA) to adenine and 5-methylthio-D-ribose-1-phosphate. MTA is a by-product of polyamine biosynthesis, which is essential for cell growth and proliferation. This salvage reaction is the principle source of free adenine in human cells. Because of its importance in coupling the purine salvage pathway to polyamine biosynthesis MTAP is a potential chemotherapeutic target.


    Organizational Affiliation

    Section of Biochemistry, Molecular and Cell Biology, Cornell University, Ithaca, NY 14853, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
PROTEIN (5'-DEOXY-5'-METHYLTHIOADENOSINE PHOSPHORYLASE)
A
283Homo sapiensGene Names: MTAP (MSAP)
EC: 2.4.2.28
Find proteins for Q13126 (Homo sapiens)
Go to Gene View: MTAP
Go to UniProtKB:  Q13126
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ADE
Query on ADE

Download SDF File 
Download CCD File 
A
ADENINE
C5 H5 N5
GFFGJBXGBJISGV-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.7 Å
  • R-Value Free: 0.202 
  • R-Value Work: 0.181 
  • Space Group: P 3 2 1
Unit Cell:
Length (Å)Angle (°)
a = 120.760α = 90.00
b = 120.760β = 90.00
c = 44.460γ = 120.00
Software Package:
Software NamePurpose
X-PLORrefinement
SHELXmodel building
MADSYSphasing
CCP4data scaling
MOSFLMdata reduction
MLPHAREphasing
SHELXphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1999-07-05
    Type: Initial release
  • Version 1.1: 2008-04-26
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Derived calculations, Version format compliance