2IIQ

Crystal structure of Pasteurella multocida sialyltransferase in an open conformation with CMP bound

• PDB DOI: https://doi.org/10.2210/pdb2IIQ/pdb

• Classification: TRANSFERASE
• Organism(s): Pasteurella multocida
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2006-09-28 Released: 2007-08-14 
• Deposition Author(s): Ni, L., Fisher, A.J.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.30 Å
• R-Value Free: 0.256 
• R-Value Work: 0.208 
• R-Value Observed: 0.210 

Literature

Structural analysis of multifunctional sialyltransferase from Pasteurella multocida.

Ni, L., Huang, S., Yu, H., Cao, H., Sun, M., Chen, X., Fisher, A.J.

To be published.

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Biological Assembly 2  

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

Biological assembly 2 assigned by authors.

Macromolecule Content

• Total Structure Weight: 93.58 kDa 
• Atom Count: 6,947 
• Modelled Residue Count: 776 
• Deposited Residue Count: 798 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Alpha-2,3/2,6-sialyltransferase/sialidase	A, B	399	Pasteurella multocida	Mutation(s): 0  Gene Names: Pm0188 EC: 2.4.99.4
UniProt
Find proteins for Q15KI8 (Pasteurella multocida) Explore Q15KI8  Go to UniProtKB:  Q15KI8

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
C5P	C [auth A], D [auth B]	CYTIDINE-5'-MONOPHOSPHATE C9 H14 N3 O8 P IERHLVCPSMICTF-XVFCMESISA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.30 Å
• R-Value Free: 0.256 
• R-Value Work: 0.208 
• R-Value Observed: 0.210 
• Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 52.528	α = 90
b = 61.572	β = 94.77
c = 119.547	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
PROTEUM PLUS	data collection
PROTEUM PLUS	data reduction
PROTEUM PLUS	data scaling
AMoRE	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2007-08-14 
Deposition Author(s): Ni, L., Fisher, A.J.

Revision History  

• Version 1.0: 2007-08-14
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Advisory, Version format compliance
• Version 1.2: 2023-08-30
  Changes: Data collection, Database references, Derived calculations, Refinement description