3QM2 | pdb_00003qm2

2.25 Angstrom Crystal Structure of Phosphoserine Aminotransferase (SerC) from Salmonella enterica subsp. enterica serovar Typhimurium

• PDB DOI: https://doi.org/10.2210/pdb3QM2/pdb

• Classification: TRANSFERASE
• Organism(s): Salmonella enterica subsp. enterica serovar Typhimurium
• Expression System: Escherichia coli 1520
• Mutation(s): No 


• Deposited: 2011-02-03 Released: 2011-02-23 
• Deposition Author(s): Minasov, G., Halavaty, A., Shuvalova, L., Dubrovska, I., Winsor, J., Papazisi, L., Anderson, W.F., Center for Structural Genomics of Infectious Diseases (CSGID)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.25 Å
• R-Value Free: 
  0.242 (Depositor), 0.251 (DCC) 
• R-Value Work: 
  0.185 (Depositor), 0.198 (DCC) 
• R-Value Observed: 
  0.188 (Depositor) 

Starting Model: experimental

Literature

2.25 Angstrom Crystal Structure of Phosphoserine Aminotransferase (SerC) from Salmonella enterica subsp. enterica serovar Typhimurium.

Minasov, G., Halavaty, A., Shuvalova, L., Dubrovska, I., Winsor, J., Papazisi, L., Anderson, W.F.

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 and generated by PISA (software)

Macromolecule Content 

• Total Structure Weight: 85.32 kDa 
• Atom Count: 5,372 
• Modeled Residue Count: 661 
• Deposited Residue Count: 772 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Phosphoserine aminotransferase	A, B	386	Salmonella enterica subsp. enterica serovar Typhimurium	Mutation(s): 0  Gene Names: serC, STM0977 EC: 2.6.1.52
UniProt
Find proteins for P55900 (Salmonella typhimurium (strain LT2 / SGSC1412 / ATCC 700720)) Explore P55900  Go to UniProtKB:  P55900

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
CA	C [auth A], D [auth B]	CALCIUM ION Ca BHPQYMZQTOCNFJ-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.25 Å
• R-Value Free:  0.242 (Depositor), 0.251 (DCC) 
• R-Value Work:  0.185 (Depositor), 0.198 (DCC) 
• R-Value Observed: 0.188 (Depositor) 

Diffraction Data: https://doi.org/10.18430/m33qm2

Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 64.26	α = 90
b = 82.171	β = 95.83
c = 71.925	γ = 90

Software Package:

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

Structure Validation

Entry History 

Deposition Data

• Released Date: 2011-02-23 
Deposition Author(s): Minasov, G., Halavaty, A., Shuvalova, L., Dubrovska, I., Winsor, J., Papazisi, L., Anderson, W.F., Center for Structural Genomics of Infectious Diseases (CSGID)

Revision History  

• Version 1.0: 2011-02-23
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Version format compliance
• Version 1.2: 2017-11-08
  Changes: Refinement description
• Version 1.3: 2023-09-13
  Changes: Data collection, Database references, Derived calculations, Refinement description