Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Biological Assembly Evidence: gel filtration

Macromolecule Content

• Total Structure Weight: 37.32 kDa 
• Atom Count: 2,650 
• Modelled Residue Count: 316 
• Deposited Residue Count: 329 
• Unique protein chains: 1

 8FUW

KpsC D160N Kdo adduct

• PDB DOI: 10.2210/pdb8FUW/pdb

• Classification: TRANSFERASE
• Organism(s): Escherichia coli
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): Yes 


• Deposited: 2023-01-18 Released: 2023-03-08 
• Deposition Author(s): Kimber, M.S., Doyle, L., Whitfield, C.
• Funding Organization(s): Natural Sciences and Engineering Research Council (NSERC, Canada)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.90 Å
• R-Value Free: 0.226 
• R-Value Work: 0.191 
• R-Value Observed: 0.192 

Literature

Mechanism and linkage specificities of the dual retaining beta-Kdo glycosyltransferase modules of KpsC from bacterial capsule biosynthesis

Doyle, L., Ovchinnikova, O.G., Huang, B., Forrester, T.J.B., Lowary, T.L., Kimber, M.S., Whitfield, C.

To be published.

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Capsule polysaccharide export protein KpsC	A	329	Escherichia coli	Mutation(s): 1  Gene Names: kpsC
UniProt
Find proteins for A0A0H2Z2W8 (Escherichia coli O1:K1 / APEC) Explore A0A0H2Z2W8  Go to UniProtKB:  A0A0H2Z2W8

Small Molecules

Ligands 3 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
C5P (Subject of Investigation/LOI)	B [auth A]	CYTIDINE-5'-MONOPHOSPHATE C9 H14 N3 O8 P IERHLVCPSMICTF-XVFCMESISA-N
KDO (Subject of Investigation/LOI)	C [auth A], D [auth A]	3-deoxy-alpha-D-manno-oct-2-ulopyranosonic acid C8 H14 O8 NNLZBVFSCVTSLA-HXUQBWEZSA-N
CL	E [auth A]	CHLORIDE ION Cl VEXZGXHMUGYJMC-UHFFFAOYSA-M

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.90 Å
• R-Value Free: 0.226 
• R-Value Work: 0.191 
• R-Value Observed: 0.192 
• Space Group: P 3₁ 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 64.38	α = 90
b = 64.38	β = 90
c = 139.2	γ = 120

Software Package:

Software Name	Purpose
PHENIX	refinement
XDS	data reduction
XSCALE	data scaling
PHASER	phasing

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2023-03-08 
Deposition Author(s): Kimber, M.S., Doyle, L., Whitfield, C.

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Funding Organization	Location	Grant Number
Natural Sciences and Engineering Research Council (NSERC, Canada)	Canada	400427

Revision History  

• Version 1.0: 2023-03-08
  Type: Initial release