2G42

Crystal structure of a putative nucleic acid binding protein (tm0693) from thermotoga maritima at 2.28 A resolution

• PDB DOI: https://doi.org/10.2210/pdb2G42/pdb

• Classification: GENE REGULATION
• Organism(s): Thermotoga maritima
• Expression System: Escherichia coli
• Mutation(s): Yes 


• Deposited: 2006-02-21 Released: 2006-03-07 
• Deposition Author(s): Joint Center for Structural Genomics (JCSG)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.28 Å
• R-Value Free: 0.251 
• R-Value Work: 0.203 
• R-Value Observed: 0.206 

Literature

Crystal structure of hypothetical protein (tm0693) from Thermotoga maritima at 2.28 A resolution

Joint Center for Structural Genomics (JCSG)

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)

Biological Assembly Evidence: gel filtration

Macromolecule Content

• Total Structure Weight: 19.09 kDa 
• Atom Count: 1,309 
• Modelled Residue Count: 157 
• Deposited Residue Count: 158 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
hypothetical protein TM_0693	A, B	79	Thermotoga maritima	Mutation(s): 2  Gene Names: tm0693
UniProt
Find proteins for Q9WZF7 (Thermotoga maritima (strain ATCC 43589 / DSM 3109 / JCM 10099 / NBRC 100826 / MSB8)) Explore Q9WZF7  Go to UniProtKB:  Q9WZF7

Small Molecules

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

Modified Residues  1 Unique
ID	Chains	Type	Formula	2D Diagram	Parent
MSE	A, B	L-PEPTIDE LINKING	C5 H11 N O2 Se		MET

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.28 Å
• R-Value Free: 0.251 
• R-Value Work: 0.203 
• R-Value Observed: 0.206 
• Space Group: P 1 2₁ 1
• Diffraction Data: https://doi.org/10.18430/M32G42

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 41.174	α = 90
b = 26.761	β = 97.23
c = 73.221	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
XSCALE	data scaling
PDB_EXTRACT	data extraction
XDS	data reduction
SOLVE	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2006-03-07 
Deposition Author(s): Joint Center for Structural Genomics (JCSG)

Revision History  

• Version 1.0: 2006-03-07
  Type: Initial release
  
• Version 1.1: 2008-05-01
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Advisory, Version format compliance
• Version 1.3: 2017-10-25
  Changes: Author supporting evidence
• Version 1.4: 2023-01-25
  Changes: Database references, Derived calculations
• Version 1.5: 2024-10-30
  Changes: Data collection, Refinement description, Structure summary