3GAQ | pdb_00003gaq

Female-specific Histamine-Binding Protein, D24R Mutant

• PDB DOI: https://doi.org/10.2210/pdb3GAQ/pdb

• Classification: IMMUNE SYSTEM
• Organism(s): Rhipicephalus appendiculatus
• Expression System: Escherichia coli
• Mutation(s): Yes 


• Deposited: 2009-02-18 Released: 2010-02-23 
• Deposition Author(s): Dennis, C.A., Homans, S.W.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.25 Å
• R-Value Free: 
  0.286 (Depositor), 0.280 (DCC) 
• R-Value Work: 
  0.229 (Depositor), 0.240 (DCC) 
• R-Value Observed: 
  0.232 (Depositor) 

Starting Model: experimental

Literature

Entropic contributions to binding in a 'Hydrophilic' Ligand-Protein Interaction

Syme, N.R., Dennis, C.A., Bronowska, A., Paesen, G., Homans, S.W.

To be published.

Biological Assembly 1  

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

Biological assembly 1 assigned by authors and generated by PISA (software)

Biological Assembly 2  

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

Biological assembly 2 assigned by authors and generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 39.19 kDa 
• Atom Count: 2,963 
• Modelled Residue Count: 344 
• Deposited Residue Count: 344 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Female-specific histamine-binding protein 2	A, B	172	Rhipicephalus appendiculatus	Mutation(s): 1
UniProt
Find proteins for O77421 (Rhipicephalus appendiculatus) Explore O77421  Go to UniProtKB:  O77421

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.25 Å
• R-Value Free:  0.286 (Depositor), 0.280 (DCC) 
• R-Value Work:  0.229 (Depositor), 0.240 (DCC) 
• R-Value Observed: 0.232 (Depositor) 

Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 57.963	α = 90
b = 56.61	β = 107.08
c = 63.801	γ = 90

Software Package:

Software Name	Purpose
d*TREK	data scaling
SCALA	data scaling
AMoRE	phasing
REFMAC	refinement
PDB_EXTRACT	data extraction
CrystalClear	data collection
MOSFLM	data reduction

Structure Validation

Entry History 

Deposition Data

• Released Date: 2010-02-23 
Deposition Author(s): Dennis, C.A., Homans, S.W.

Revision History  

• Version 1.0: 2010-02-23
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Version format compliance
• Version 1.2: 2021-10-20
  Changes: Database references
• Version 1.3: 2023-09-06
  Changes: Data collection, Refinement description
• Version 1.4: 2024-11-20
  Changes: Structure summary