2GO2

Crystal structure of BbKI, a Kunitz-type kallikrein inhibitor

• PDB DOI: https://doi.org/10.2210/pdb2GO2/pdb

• Classification: PROTEIN BINDING
• Organism(s): Bauhinia bauhinioides
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2006-04-12 Released: 2007-03-13 
• Deposition Author(s): Navarro, M.V.A.S., Garratt, R.C.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.87 Å
• R-Value Free: 0.210 
• R-Value Work: 0.166 
• R-Value Observed: 0.168 

Literature

The Crystal Structure of BbKI, a kunitz-type kallikrein inhibitor devoid of disulfide bridges

Navarro, M.V.A.S., Oliva, M.L.V., Araujo, A.P.U., Garratt, R.C.

To be published.

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 17.96 kDa 
• Atom Count: 1,471 
• Modelled Residue Count: 163 
• Deposited Residue Count: 163 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Kunitz-type serine protease inhibitor BbKI	A	163	Bauhinia bauhinioides	Mutation(s): 0  Gene Names: BbKI
UniProt
Find proteins for Q6VEQ7 (Bauhinia bauhinioides) Explore Q6VEQ7  Go to UniProtKB:  Q6VEQ7

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
EDO	B [auth A], C [auth A]	1,2-ETHANEDIOL C2 H6 O2 LYCAIKOWRPUZTN-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.87 Å
• R-Value Free: 0.210 
• R-Value Work: 0.166 
• R-Value Observed: 0.168 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 46.701	α = 90
b = 64.143	β = 90
c = 59.244	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
MOSFLM	data reduction
CCP4	data scaling
SHARP	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2007-03-13 
Deposition Author(s): Navarro, M.V.A.S., Garratt, R.C.

Revision History  

• Version 1.0: 2007-03-13
  Type: Initial release
  
• Version 1.1: 2008-05-01
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Advisory, Version format compliance
• Version 1.3: 2024-02-14
  Changes: Data collection, Database references, Derived calculations