1N10

Crystal Structure of Phl p 1, a Major Timothy Grass Pollen Allergen

• PDB DOI: https://doi.org/10.2210/pdb1N10/pdb

• Classification: ALLERGEN
• Organism(s): Phleum pratense
• Expression System: Spodoptera frugiperda
• Mutation(s): No 


• Deposited: 2002-10-16 Released: 2003-01-28 
• Deposition Author(s): Fedorov, A.A., Ball, T., Leistler, B., Valenta, R., Almo, S.C., Burley, S.K., New York SGX Research Center for Structural Genomics (NYSGXRC)

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.90 Å
• R-Value Free: 
  0.267 (Depositor), 0.260 (DCC) 
• R-Value Work: 
  0.239 (Depositor), 0.240 (DCC) 
• R-Value Observed: 
  0.243 (Depositor) 

Literature

X-ray Crystal Structure of Phl p 1, a Major Timothy Grass Pollen Allergen

Fedorov, A.A., Ball, T., Leistler, B., Valenta, R., Almo, S.C.

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: 52.97 kDa 
• Atom Count: 3,540 
• Modelled Residue Count: 456 
• Deposited Residue Count: 482 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Pollen allergen Phl p 1	A, B	241	Phleum pratense	Mutation(s): 0  Gene Names: PHLPI
UniProt
Find proteins for P43213 (Phleum pratense) Explore P43213  Go to UniProtKB:  P43213
Glycosylation
Glycosylation Sites: 1

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
NAG	C [auth A], D [auth B]	2-acetamido-2-deoxy-beta-D-glucopyranose C8 H15 N O6 OVRNDRQMDRJTHS-FMDGEEDCSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.90 Å
• R-Value Free:  0.267 (Depositor), 0.260 (DCC) 
• R-Value Work:  0.239 (Depositor), 0.240 (DCC) 
• R-Value Observed: 0.243 (Depositor) 

Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 59.685	α = 90
b = 65.526	β = 90
c = 144.769	γ = 90

Software Package:

Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
SOLVE	phasing
CNS	refinement

Structure Validation

Entry History 

Deposition Data

• Released Date: 2003-01-28 
Deposition Author(s): Fedorov, A.A., Ball, T., Leistler, B., Valenta, R., Almo, S.C., Burley, S.K., New York SGX Research Center for Structural Genomics (NYSGXRC)

Revision History  

• Version 1.0: 2003-01-28
  Type: Initial release
  
• Version 1.1: 2008-04-28
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Non-polymer description, Version format compliance
• Version 1.3: 2020-07-29
  Type: Remediation
  Reason: Carbohydrate remediation
  Changes: Data collection, Derived calculations, Structure summary
• Version 1.4: 2021-02-03
  Changes: Structure summary
• Version 1.5: 2024-10-30
  Changes: Data collection, Database references, Structure summary