4MMP

Structure of Sialic Acid Binding Protein from Pasturella Multocida

• PDB DOI: https://doi.org/10.2210/pdb4MMP/pdb

• Classification: SUGAR BINDING PROTEIN
• Organism(s): Pasteurella multocida subsp. gallicida P1059
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2013-09-09 Released: 2014-07-09 
• Deposition Author(s): Ramaswamy, S., Thanuja, G.S.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.57 Å
• R-Value Free: 0.200 
• R-Value Work: 0.162 
• R-Value Observed: 0.164 

Biological Assembly 1  

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

Biological assembly 1 assigned by authors and generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 34.52 kDa 
• Atom Count: 2,624 
• Modelled Residue Count: 308 
• Deposited Residue Count: 308 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Sialic Acid Binding Protein	A	308	Pasteurella multocida subsp. gallicida P1059	Mutation(s): 0  Gene Names: SiaP, P1059_01877

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
SLB	B [auth A]	N-acetyl-beta-neuraminic acid C11 H19 N O9 SQVRNKJHWKZAKO-PFQGKNLYSA-N

Binding Affinity Annotations
ID	Source	Binding Affinity
SLB	Binding MOAD:  4MMP	Kd: 19.7 (nM) from 1 assay(s)

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.57 Å
• R-Value Free: 0.200 
• R-Value Work: 0.162 
• R-Value Observed: 0.164 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 42.643	α = 90
b = 77.758	β = 90
c = 85.519	γ = 90

Software Package:

Software Name	Purpose
SCALA	data scaling
AMoRE	phasing
REFMAC	refinement
PDB_EXTRACT	data extraction
HKL-3000	data collection
XDS	data reduction

Structure Validation

Entry History 

Deposition Data

• Released Date: 2014-07-09 
Deposition Author(s): Ramaswamy, S., Thanuja, G.S.

Revision History  

• Version 1.0: 2014-07-09
  Type: Initial release
  
• Version 1.1: 2014-09-24
  Changes: Database references
• Version 1.2: 2020-07-29
  Type: Remediation
  Reason: Carbohydrate remediation
  Changes: Data collection, Database references, Derived calculations, Structure summary
• Version 1.3: 2023-09-20
  Changes: Data collection, Database references, Refinement description, Structure summary