2GB4

Crystal structure of Thiopurine methyltransferase (18204406) from Mus musculus at 1.35 A resolution

• PDB DOI: https://doi.org/10.2210/pdb2GB4/pdb

• Classification: TRANSFERASE
• Organism(s): Mus musculus
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2006-03-09 Released: 2006-09-19 
• Deposition Author(s): Joint Center for Structural Genomics (JCSG)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.25 Å
• R-Value Free: 0.193 
• R-Value Observed: 0.136 

Starting Model: experimental

Literature

Crystal structure of Thiopurine methyltransferase (18204406) from Mus musculus at 1.35 A resolution

Joint Center for Structural Genomics (JCSG)

To be published.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors.

Biological Assembly 2  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 2 assigned by authors.

Macromolecule Content

• Total Structure Weight: 58.94 kDa 
• Atom Count: 4,250 
• Modelled Residue Count: 461 
• Deposited Residue Count: 504 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Thiopurine S-methyltransferase	A, B	252	Mus musculus	Mutation(s): 0  Gene Names: Tpmt EC: 2.1.1.67
UniProt
Find proteins for O55060 (Mus musculus) Explore O55060  Go to UniProtKB:  O55060

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
SAH	C [auth A], D [auth B]	S-ADENOSYL-L-HOMOCYSTEINE C14 H20 N6 O5 S ZJUKTBDSGOFHSH-WFMPWKQPSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.25 Å
• R-Value Free: 0.193 
• R-Value Observed: 0.136 
• Space Group: P 1 2₁ 1
• Diffraction Data: https://doi.org/10.18430/M32GB4

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 62.988	α = 90
b = 70.554	β = 115.7
c = 72.593	γ = 90

Software Package:

Software Name	Purpose
SHELXL-97	refinement
SCALEPACK	data scaling
PDB_EXTRACT	data extraction
DENZO	data reduction
MOLREP	phasing
REFMAC	refinement

Structure Validation

Entry History 

Deposition Data

• Released Date: 2006-09-19 
Deposition Author(s): Joint Center for Structural Genomics (JCSG)

Revision History  

• Version 1.0: 2006-09-19
  Type: Initial release
  
• Version 1.1: 2008-04-01
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2019-07-24
  Changes: Advisory, Data collection, Refinement description
• Version 1.4: 2023-01-25
  Changes: Advisory, Database references, Derived calculations
• Version 1.5: 2023-09-20
  Changes: Data collection, Refinement description