1CQA

BIRCH POLLEN PROFILIN

• PDB DOI: https://doi.org/10.2210/pdb1CQA/pdb

• Classification: CONTRACTILE PROTEIN
• Organism(s): Betula pendula
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 1996-07-26 Released: 1997-02-12 
• Deposition Author(s): Fedorov, A.A., Ball, T., Mahoney, N.M., Valenta, R., Almo, S.C.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.40 Å
• R-Value Work: 0.178 

Literature

The molecular basis for allergen cross-reactivity: crystal structure and IgE-epitope mapping of birch pollen profilin.

Fedorov, A.A., Ball, T., Mahoney, N.M., Valenta, R., Almo, S.C.

(1997) Structure 5: 33-45

• PubMed: 9016715 
• DOI: https://doi.org/10.1016/s0969-2126(97)00164-0
• Primary Citation of Related Structures:  
  1CQA


• PubMed Abstract: 
  

  The profilins are a group of ubiquitous actin monomer binding proteins that are responsible for regulating the normal distribution of filamentous actin networks in eukaryotic cells. Profilins also bind polyphosphoinositides, which can disrupt the profilin-action complex, and proline-rich ligands which localize profilin to sites requiring extensive actin filament accumulation. Profilins represent cross-reactive allergens for almost 20 % of all pollen allergic patients.

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Organizational Affiliation: 

Department of Biochemistry, Albert Einstein College of Medicine, Bronx, NY 10461, USA.

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 14.29 kDa 
• Atom Count: 977 
• Modelled Residue Count: 123 
• Deposited Residue Count: 133 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
PROFILIN	A	133	Betula pendula	Mutation(s): 0
UniProt
Find proteins for P25816 (Betula pendula) Explore P25816  Go to UniProtKB:  P25816

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.40 Å
• R-Value Work: 0.178 
• Space Group: P 4₁ 2₁ 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 59.9	α = 90
b = 59.9	β = 90
c = 85.37	γ = 90

Software Package:

Software Name	Purpose
PHASES	phasing
X-PLOR	model building
PROFFT	refinement
X-PLOR	refinement
XDS	data reduction
XSCALE	data scaling
X-PLOR	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 1997-02-12 
Deposition Author(s): Fedorov, A.A., Ball, T., Mahoney, N.M., Valenta, R., Almo, S.C.

Revision History  

• Version 1.0: 1997-02-12
  Type: Initial release
  
• Version 1.1: 2008-03-24
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2024-02-07
  Changes: Data collection, Database references