2P02

Crystal structure of the alpha subunit of human S-adenosylmethionine synthetase 2

• PDB DOI: https://doi.org/10.2210/pdb2P02/pdb
• Entry: 2P02 supersedes: 2HJ2

• Classification: TRANSFERASE
• Organism(s): Homo sapiens
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2007-02-28 Released: 2007-03-13 
• Deposition Author(s): Papagrigoriou, E., Shafqat, N., Rojkova, A., Niessen, F.H., Kavanagh, K.L., von Delft, F., Gorrec, F., Ugochukwu, E., Arrowsmith, C.H., Edwards, A., Weigelt, J., Sundstrom, M., Oppermann, U., Structural Genomics Consortium (SGC)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.21 Å
• R-Value Free: 0.119 
• R-Value Work: 0.100 
• R-Value Observed: 0.101 

Starting Model: experimental

Literature

Crystal structure of the alpha subunit of human S-adenosylmethionine synthetase 2

Papagrigoriou, E., Shafqat, N., Rojkova, A., Niessen, F.H., Kavanagh, K.L., von Delft, F., Gorrec, F., Ugochukwu, E., Arrowsmith, C.H., Edwards, A., Weigelt, J., Sundstrom, M., Oppermann, U.

To be published.

Biological Assembly 1  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 44.24 kDa 
• Atom Count: 3,582 
• Modelled Residue Count: 380 
• Deposited Residue Count: 396 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
S-adenosylmethionine synthetase isoform type-2	A	396	Homo sapiens	Mutation(s): 0  Gene Names: MAT2A, AMS2, MATA2 EC: 2.5.1.6
UniProt & NIH Common Fund Data Resources
Find proteins for P31153 (Homo sapiens) Explore P31153  Go to UniProtKB:  P31153
GTEx:  ENSG00000168906

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
SAM	C [auth A]	S-ADENOSYLMETHIONINE C15 H22 N6 O5 S MEFKEPWMEQBLKI-FCKMPRQPSA-N
CL	B [auth A]	CHLORIDE ION Cl VEXZGXHMUGYJMC-UHFFFAOYSA-M

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.21 Å
• R-Value Free: 0.119 
• R-Value Work: 0.100 
• R-Value Observed: 0.101 
• Space Group: I 2 2 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 68.301	α = 90
b = 94.106	β = 90
c = 117.383	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
MAR345	data collection
HKL-2000	data reduction
HKL-2000	data scaling
PHASER	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2007-03-13 
Deposition Author(s): Papagrigoriou, E., Shafqat, N., Rojkova, A., Niessen, F.H., Kavanagh, K.L., von Delft, F., Gorrec, F., Ugochukwu, E., Arrowsmith, C.H., Edwards, A., Weigelt, J., Sundstrom, M., Oppermann, U., Structural Genomics Consortium (SGC)
• This entry supersedes: 2HJ2

Revision History  

• Version 1.0: 2007-03-13
  Type: Initial release
  
• Version 1.1: 2008-05-01
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2017-10-18
  Changes: Refinement description
• Version 1.4: 2023-08-30
  Changes: Data collection, Database references, Derived calculations, Refinement description