1EX2

CRYSTAL STRUCTURE OF BACILLUS SUBTILIS MAF PROTEIN

• PDB DOI: https://doi.org/10.2210/pdb1EX2/pdb

• Classification: STRUCTURAL GENOMICS
• Organism(s): Bacillus subtilis
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2000-04-28 Released: 2000-06-14 
• Deposition Author(s): Minasov, G., Teplova, M., Stewart, G.C., Koonin, E.V., Anderson, W.F., Egli, M., Midwest Center for Structural Genomics (MCSG)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.85 Å
• R-Value Free: 0.223 
• R-Value Work: 0.195 

Biological Assembly 1  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 43.27 kDa 
• Atom Count: 3,275 
• Modelled Residue Count: 370 
• Deposited Residue Count: 378 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
PROTEIN MAF	A, B	189	Bacillus subtilis	Mutation(s): 0
UniProt
Find proteins for Q02169 (Bacillus subtilis (strain 168)) Explore Q02169  Go to UniProtKB:  Q02169

Oligosaccharides

Help

Entity ID: 2
Molecule	Chains	Length	2D Diagram	Glycosylation	3D Interactions
beta-D-fructofuranose-(2-1)-alpha-D-glucopyranose	C	2		N/A
Glycosylation Resources
GlyTouCan:  G05551OP GlyCosmos:  G05551OP

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
PO4	D [auth A], E [auth A], F [auth B]	PHOSPHATE ION O4 P NBIIXXVUZAFLBC-UHFFFAOYSA-K

Biologically Interesting Molecules (External Reference) 1 Unique

Entity ID: 2
ID	Chains	Name	Type/Class	2D Diagram	3D Interactions
PRD_900003	C	sucrose	Oligosaccharide / Nutrient

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.85 Å
• R-Value Free: 0.223 
• R-Value Work: 0.195 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 62.66	α = 90
b = 86.01	β = 90
c = 93.94	γ = 90

Software Package:

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

Structure Validation

Entry History 

Deposition Data

• Released Date: 2000-06-14 
Deposition Author(s): Minasov, G., Teplova, M., Stewart, G.C., Koonin, E.V., Anderson, W.F., Egli, M., Midwest Center for Structural Genomics (MCSG)

Revision History  

• Version 1.0: 2000-06-14
  Type: Initial release
  
• Version 1.1: 2008-04-27
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 2.0: 2020-07-29
  Type: Remediation
  Reason: Carbohydrate remediation
  Changes: Atomic model, Data collection, Derived calculations, Non-polymer description, Structure summary