Biological Assembly 1  

 3D View: Structure | Ligand Interaction

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Global Symmetry: Cyclic - C5  (3D View)
Global Stoichiometry: Homo 5-mer - A5 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 116661.73 
• Atom Count: 8225 
• Residue Count: 1030 
• Unique protein chains: 1

1B09

HUMAN C-REACTIVE PROTEIN COMPLEXED WITH PHOSPHOCHOLINE

• DOI: 10.2210/pdb1B09/pdb

• Classification: IMMUNE SYSTEM
• Organism(s): Homo sapiens


• Deposited: 1998-11-18 Released: 1999-12-03 
• Deposition Author(s): Thompson, D., Pepys, M.B., Wood, S.P.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.5 Å
• R-Value Free: 0.242 
• R-Value Work: 0.196 

Literature

The physiological structure of human C-reactive protein and its complex with phosphocholine.

Thompson, D., Pepys, M.B., Wood, S.P.

(1999) Structure Fold.Des. 7: 169-177

• PubMed: 10368284 
• DOI: 10.1016/S0969-2126(99)80023-9


• PubMed Abstract: 
  

Human C-reactive protein (CRP) is the classical acute phase reactant, the circulating concentration of which rises rapidly and extensively in a cytokine-mediated response to tissue injury, infection and inflammation. Serum CRP values are routinely measured, empirically, to detect and monitor many human diseases. However, CRP is likely to have important host defence, scavenging and metabolic functions through its capacity for calcium-dependent binding to exogenous and autologous molecules containing phosphocholine (PC) and then activating the classical complement pathway. CRP may also have pathogenic effects and the recent discovery of a prognostic association between increased CRP production and coronary atherothrombotic events is of particular interest.

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Organizational Affiliation: 

School of Biological Sciences, University of Southampton, Southampton SO16 7PX UK.

Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details
PROTEIN (C-REACTIVE PROTEIN)	A, B, C, D, E	206	Homo sapiens	Mutation(s): 0  Gene Names: CRP (PTX1)
Find proteins for P02741 (Homo sapiens) Go to Gene View: CRP Go to UniProtKB:  P02741

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram & Interactions
PC	A, B, C, D, E	PHOSPHOCHOLINE C5 H15 N O4 P YHHSONZFOIEMCP-UHFFFAOYSA-O
CA	A, B, C, D, E	CALCIUM ION Ca BHPQYMZQTOCNFJ-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.5 Å
• R-Value Free: 0.242 
• R-Value Work: 0.196 
• Space Group: P 4₁ 2₁ 2

Unit Cell:

Length (Å)	Angle (°)
a = 193.940	α = 90.00
b = 193.940	β = 90.00
c = 134.430	γ = 90.00

Software Package:

Software Name	Purpose
AMoRE	phasing
CCP4	data reduction
CCP4	data scaling
MOSFLM	data reduction
X-PLOR	model building
X-PLOR	refinement
X-PLOR	phasing

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 1998-11-18 
• Released Date: 1999-12-03 
• Deposition Author(s): Thompson, D., Pepys, M.B., Wood, S.P.

Revision History 

• Version 1.0: 1999-12-03
  Type: Initial release
• Version 1.1: 2008-04-26
  Type: Version format compliance
• Version 1.2: 2011-07-13
  Type: Version format compliance