1MGP

Hypothetical protein TM841 from Thermotoga maritima reveals fatty acid binding function

• PDB DOI: https://doi.org/10.2210/pdb1MGP/pdb

• Classification: LIPID BINDING PROTEIN
• Organism(s): Thermotoga maritima
• Expression System: Escherichia coli
• Mutation(s): Yes 


• Deposited: 2002-08-15 Released: 2002-09-18 
• Deposition Author(s): Schulze-Gahmen, U., Pelaschier, J., Yokota, H., Kim, R., Kim, S.-H., Berkeley Structural Genomics Center (BSGC)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.00 Å
• R-Value Free: 0.228 
• R-Value Work: 0.202 

Literature

Crystal structure of a hypothetical protein, TM841 of Thermotoga maritima, reveals its function as fatty acid binding protein

Schulze-Gahmen, U., Pelaschier, J., Yokota, H., Kim, R., Kim, S.-H.

(2003) Proteins 50: 526-530

• PubMed: 12577257 
• DOI: https://doi.org/10.1002/prot.10305
• Primary Citation of Related Structures:  
  1MGP


• PubMed Abstract: 
  

  We determined the three-dimensional (3D) crystal structure of protein TM841, a protein product from a hypothetical open-reading frame in the genome of the hyperthermophile bacterium Thermotoga maritima, to 2.0 A resolution. The protein belongs to a large protein family, DegV or COG1307 of unknown function. The 35 kDa protein consists of two separate domains, with low-level structural resemblance to domains from other proteins with known 3D structures. These structural homologies, however, provided no clues for the function of TM841. But the electron density maps revealed clear density for a bound fatty-acid molecule in a pocket between the two protein domains. The structure indicates that TM841 has the molecular function of fatty-acid binding and may play a role in the cellular functions of fatty acid transport or metabolism.

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Organizational Affiliation: 

Physical Biosciences Division, Lawrence Berkeley National Laboratory, University of California, Berkeley, CA 94720-5230, USA.

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 36.19 kDa 
• Atom Count: 2,431 
• Modelled Residue Count: 276 
• Deposited Residue Count: 313 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Hypothetical protein TM841	A	313	Thermotoga maritima	Mutation(s): 6
UniProt
Find proteins for Q9X1H9 (Thermotoga maritima (strain ATCC 43589 / DSM 3109 / JCM 10099 / NBRC 100826 / MSB8)) Explore Q9X1H9  Go to UniProtKB:  Q9X1H9

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
PLM	B [auth A]	PALMITIC ACID C16 H32 O2 IPCSVZSSVZVIGE-UHFFFAOYSA-N

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

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.00 Å
• R-Value Free: 0.228 
• R-Value Work: 0.202 
• Space Group: P 6₁ 2 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 115.01	α = 90
b = 115.01	β = 90
c = 91.26	γ = 120

Software Package:

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

Structure Validation

Entry History 

Deposition Data

• Released Date: 2002-09-18 
Deposition Author(s): Schulze-Gahmen, U., Pelaschier, J., Yokota, H., Kim, R., Kim, S.-H., Berkeley Structural Genomics Center (BSGC)

Revision History  

• Version 1.0: 2002-09-18
  Type: Initial release
  
• Version 1.1: 2008-04-28
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2024-10-16
  Changes: Data collection, Database references, Derived calculations, Structure summary