2B1R

X-ray structure of the sucrose-phosphatase (SPP) from Synechocystis sp.PCC6803 in complex with cellobiose

• PDB DOI: https://doi.org/10.2210/pdb2B1R/pdb

• Classification: HYDROLASE
• Organism(s): Synechocystis sp. PCC 6803
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2005-09-16 Released: 2006-09-12 
• Deposition Author(s): Fieulaine, S., Lunn, J.E., Ferrer, J.-L.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.20 Å
• R-Value Free: 0.198 
• R-Value Work: 0.177 

Starting Model: experimental

Literature

Crystal structure of a cyanobacterial sucrose-phosphatase in complex with glucose-containing disaccharides

Fieulaine, S., Lunn, J.E., Ferrer, J.-L.

(2007) Proteins 68: 796-801

• PubMed: 17510968 
• DOI: https://doi.org/10.1002/prot.21481
• Primary Citation of Related Structures:  
  2B1Q, 2B1R, 2D2V

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Organizational Affiliation: 

Institut de Biologie Structurale J-P. Ebel, CEA/CNRS/UJF, Grenoble, France.

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 28.16 kDa 
• Atom Count: 2,215 
• Modelled Residue Count: 244 
• Deposited Residue Count: 244 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
hypothetical protein slr0953	A	244	Synechocystis sp. PCC 6803	Mutation(s): 0  Gene Names: spp EC: 3.1.3.24
UniProt
Find proteins for P74325 (Synechocystis sp. (strain ATCC 27184 / PCC 6803 / Kazusa)) Explore P74325  Go to UniProtKB:  P74325

Oligosaccharides

Help

Entity ID: 2
Molecule	Chains	Length	2D Diagram	Glycosylation	3D Interactions
beta-D-glucopyranose-(1-4)-beta-D-glucopyranose	B	2		N/A
Glycosylation Resources
GlyTouCan:  G84824ZO GlyCosmos:  G84824ZO

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
MG	C [auth A]	MAGNESIUM ION Mg JLVVSXFLKOJNIY-UHFFFAOYSA-N

Biologically Interesting Molecules (External Reference) 1 Unique

Entity ID: 2
ID	Chains	Name	Type/Class	2D Diagram	3D Interactions
PRD_900005	B	beta-cellobiose	Oligosaccharide / Metabolism

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.20 Å
• R-Value Free: 0.198 
• R-Value Work: 0.177 
• Space Group: P 6₅ 2 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 68.68	α = 90
b = 68.68	β = 90
c = 268.71	γ = 120

Software Package:

Software Name	Purpose
XDS	data scaling
XDS	data reduction
CNS	refinement
CNS	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2006-09-12 
Deposition Author(s): Fieulaine, S., Lunn, J.E., Ferrer, J.-L.

Revision History  

• Version 1.0: 2006-09-12
  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 2.0: 2020-07-29
  Type: Remediation
  Reason: Carbohydrate remediation
  Changes: Advisory, Atomic model, Data collection, Derived calculations, Non-polymer description, Structure summary
• Version 2.1: 2023-10-25
  Changes: Data collection, Database references, Refinement description, Structure summary