1J9L

CRYSTAL STRUCTURE OF SURE PROTEIN FROM T.MARITIMA IN COMPLEX WITH VANADATE

• PDB DOI: https://doi.org/10.2210/pdb1J9L/pdb

• Classification: UNKNOWN FUNCTION
• Organism(s): Thermotoga maritima
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2001-05-28 Released: 2001-09-12 
• Deposition Author(s): Suh, S.W., Lee, J.Y., Kwak, J.E., Moon, J.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.90 Å
• R-Value Free: 0.241 
• R-Value Work: 0.199 
• R-Value Observed: 0.199 

Literature

Crystal structure and functional analysis of the SurE protein identify a novel phosphatase family.

Lee, J.Y., Kwak, J.E., Moon, J., Eom, S.H., Liong, E.C., Pedelacq, J.D., Berendzen, J., Suh, S.W.

(2001) Nat Struct Biol 8: 789-794

• PubMed: 11524683 
• DOI: https://doi.org/10.1038/nsb0901-789
• Primary Citation of Related Structures:  
  1J9J, 1J9K, 1J9L


• PubMed Abstract: 
  

  Homologs of the Escherichia coli surE gene are present in many eubacteria and archaea. Despite the evolutionary conservation, little information is available on the structure and function of their gene products. We have determined the crystal structure of the SurE protein from Thermotoga maritima. The structure reveals the dimeric arrangement of the subunits and an active site around a bound metal ion. We also demonstrate that the SurE protein exhibits a divalent metal ion-dependent phosphatase activity that is inhibited by vanadate or tungstate. In the vanadate- and tungstate-complexed structures, the inhibitors bind adjacent to the divalent metal ion. Our structural and functional analyses identify the SurE proteins as a novel family of metal ion-dependent phosphatases.

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Organizational Affiliation: 

School of Chemistry and Molecular Engineering, College of Natural Sciences, Seoul National University, Seoul 151-742, Korea.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 56.8 kDa 
• Atom Count: 4,254 
• Modelled Residue Count: 494 
• Deposited Residue Count: 494 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
STATIONARY PHASE SURVIVAL PROTEIN	A, B	247	Thermotoga maritima	Mutation(s): 0
UniProt
Find proteins for P96112 (Thermotoga maritima (strain ATCC 43589 / DSM 3109 / JCM 10099 / NBRC 100826 / MSB8)) Explore P96112  Go to UniProtKB:  P96112

Small Molecules

Ligands 3 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
EPE	H [auth B]	4-(2-HYDROXYETHYL)-1-PIPERAZINE ETHANESULFONIC ACID C8 H18 N2 O4 S JKMHFZQWWAIEOD-UHFFFAOYSA-N
VO4	E [auth A], G [auth B]	VANADATE ION O4 V LSGOVYNHVSXFFJ-UHFFFAOYSA-N
CA	C [auth A], D [auth A], F [auth B]	CALCIUM ION Ca BHPQYMZQTOCNFJ-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.90 Å
• R-Value Free: 0.241 
• R-Value Work: 0.199 
• R-Value Observed: 0.199 
• Space Group: P 3₁ 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 114.724	α = 90
b = 114.724	β = 90
c = 77.543	γ = 120

Software Package:

Software Name	Purpose
CNS	refinement
DENZO	data reduction
SCALEPACK	data scaling
CNS	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2001-09-12 
Deposition Author(s): Suh, S.W., Lee, J.Y., Kwak, J.E., Moon, J.

Revision History  

• Version 1.0: 2001-09-12
  Type: Initial release
  
• Version 1.1: 2008-04-27
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2011-11-16
  Changes: Atomic model
• Version 1.4: 2023-10-25
  Changes: Data collection, Database references, Derived calculations, Refinement description