3QQT

Amphiphilic nanotubes in the crystal structure of a biosurfactant protein hydrophobin HFBII

• PDB DOI: https://doi.org/10.2210/pdb3QQT/pdb

• Classification: STRUCTURAL PROTEIN
• Organism(s): Trichoderma reesei
• Mutation(s): No 


• Deposited: 2011-02-16 Released: 2011-11-23 
• Deposition Author(s): Kallio, J.M., Rouvinen, J.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.90 Å
• R-Value Free: 0.263 
• R-Value Work: 0.211 
• R-Value Observed: 0.214 

Starting Model: experimental

Literature

Amphiphilic nanotubes in the crystal structure of a biosurfactant protein hydrophobin HFBII.

Kallio, J.M., Rouvinen, J.

(2011) Chem Commun (Camb) 47: 9843-9845

• PubMed: 21808803 
• DOI: https://doi.org/10.1039/c1cc13139g
• Primary Citation of Related Structures:  
  3QQT


• PubMed Abstract: 
  

  Atomic scale experimental data by X-ray crystallography have been collected on an amphiphilic protein nanotube, consisting of a biosurfactant protein Trichoderma reesei hydrophobin HFBII.

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Organizational Affiliation: 

Department of Chemistry, University of Eastern Finland, Joensuu, Finland. [e-mail]

Biological Assembly 1  

Global Symmetry: Dihedral - D4  (Explore in 3D)
Global Stoichiometry: Homo 8-mer - A8 

Biological assembly 1 generated by PISA (software)

Biological Assembly 2  

Global Symmetry: Dihedral - D4  (Explore in 3D)
Global Stoichiometry: Homo 8-mer - A8 

Biological assembly 2 generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 14.96 kDa 
• Atom Count: 1,096 
• Modelled Residue Count: 140 
• Deposited Residue Count: 142 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Hydrophobin-2	A, B	71	Trichoderma reesei	Mutation(s): 0
UniProt
Find proteins for P79073 (Hypocrea jecorina) Explore P79073  Go to UniProtKB:  P79073

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
SDS	F [auth B]	DODECYL SULFATE C12 H26 O4 S MOTZDAYCYVMXPC-UHFFFAOYSA-N
SO4	C [auth A], D [auth A], E [auth A]	SULFATE ION O4 S QAOWNCQODCNURD-UHFFFAOYSA-L

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.90 Å
• R-Value Free: 0.263 
• R-Value Work: 0.211 
• R-Value Observed: 0.214 
• Space Group: I 2 2 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 42.052	α = 90
b = 91.359	β = 90
c = 94.808	γ = 90

Software Package:

Software Name	Purpose
XDS	data scaling
CCP4	model building
PHASER	phasing
PHENIX	refinement
XDS	data reduction
CCP4	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2011-11-23 
Deposition Author(s): Kallio, J.M., Rouvinen, J.

Revision History  

• Version 1.0: 2011-11-23
  Type: Initial release
  
• Version 1.1: 2023-09-13
  Changes: Data collection, Database references, Derived calculations, Refinement description
• Version 1.2: 2024-11-06
  Changes: Structure summary