1CG6

STRUCTURE OF HUMAN 5'-DEOXY-5'-METHYLTHIOADENOSINE PHOSPHORYLASE COMPLEXED WITH 5'-DEOXY-5'-METHYLTHIOADENOSINE AND SULFATE AT 1.7 A RESOLUTION


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.7 Å
  • R-Value Free: 0.225 
  • R-Value Work: 0.202 

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:  

  • 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 sapiensMutation(s): 0 
Gene 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 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
MTA
Query on MTA

Download SDF File 
Download CCD File 
A
5'-DEOXY-5'-METHYLTHIOADENOSINE
C11 H15 N5 O3 S
WUUGFSXJNOTRMR-IOSLPCCCSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.7 Å
  • R-Value Free: 0.225 
  • R-Value Work: 0.202 
  • Space Group: P 3 2 1
Unit Cell:
Length (Å)Angle (°)
a = 122.830α = 90.00
b = 122.830β = 90.00
c = 45.000γ = 120.00
Software Package:
Software NamePurpose
X-PLORrefinement
X-PLORmodel building
X-PLORphasing
MOSFLMdata reduction
CCP4data scaling

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