2FNC

Thermotoga maritima maltotriose binding protein bound with maltotriose.

• PDB DOI: https://doi.org/10.2210/pdb2FNC/pdb

• Classification: SUGAR BINDING PROTEIN
• Organism(s): Thermotoga maritima MSB8
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2006-01-10 Released: 2007-01-16 
• Deposition Author(s): Cuneo, M.J., Changela, A.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.70 Å
• R-Value Free: 0.230 
• R-Value Work: 0.194 
• R-Value Observed: 0.195 

Starting Model: experimental

Literature

The crystal structure of redundant maltotriose binding proteins from the thermophile Thermotoga maritima

Cuneo, M.J., Changela, A., Hocker, B., Beese, L.S., Hellinga, H.W.

To be published.

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 42.34 kDa 
• Atom Count: 3,294 
• Modelled Residue Count: 379 
• Deposited Residue Count: 381 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
maltose ABC transporter, periplasmic maltose-binding protein	A	381	Thermotoga maritima MSB8	Mutation(s): 0  Gene Names: TM1839
UniProt
Find proteins for Q9S5Y1 (Thermotoga maritima (strain ATCC 43589 / DSM 3109 / JCM 10099 / NBRC 100826 / MSB8)) Explore Q9S5Y1  Go to UniProtKB:  Q9S5Y1

Oligosaccharides

Help

Entity ID: 2
Molecule	Chains	Length	2D Diagram	Glycosylation	3D Interactions
alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose	B	3		N/A
Glycosylation Resources
GlyTouCan:  G96370VA GlyCosmos:  G96370VA GlyGen:  G96370VA

Biologically Interesting Molecules (External Reference) 1 Unique

Entity ID: 2
ID	Chains	Name	Type/Class	2D Diagram	3D Interactions
PRD_900009	B	alpha-maltotriose	Oligosaccharide / Nutrient

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.70 Å
• R-Value Free: 0.230 
• R-Value Work: 0.194 
• R-Value Observed: 0.195 
• Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 35.836	α = 90
b = 56.183	β = 94.67
c = 88.794	γ = 90

Software Package:

Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
REFMAC	refinement
PDB_EXTRACT	data extraction
HKL-2000	data reduction
AMoRE	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2007-01-16 
Deposition Author(s): Cuneo, M.J., Changela, A.

Revision History  

• Version 1.0: 2007-01-16
  Type: Initial release
  
• Version 1.1: 2008-05-01
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Source and taxonomy, Version format compliance
• Version 1.3: 2017-10-18
  Changes: Refinement description
• Version 2.0: 2020-07-29
  Type: Remediation
  Reason: Carbohydrate remediation
  Changes: Atomic model, Data collection, Database references, Derived calculations, Non-polymer description, Structure summary
• Version 2.1: 2023-08-30
  Changes: Data collection, Database references, Refinement description, Structure summary