6I5T

Cryo-EM informed directed evolution of Nitrilase 4 leads to a change in quaternary structure.

• PDB DOI: https://doi.org/10.2210/pdb6I5T/pdb
• EM Map EMD-4418: EMDB EMDataResource

• Classification: HYDROLASE
• Organism(s): Arabidopsis thaliana
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2018-11-14 Released: 2019-11-20 
• Deposition Author(s): Mulelu, A.E., Woodward, J.D.
• Funding Organization(s): National Research Foundation in South Africa

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Experimental Data Snapshot

• Method: ELECTRON MICROSCOPY
• Resolution: 3.90 Å
• Aggregation State: FILAMENT 
• Reconstruction Method: HELICAL 

Literature

Cryo-EM informed directed evolution of nitrilase 4 leads to a change in quaternary structure.

Mulelu, A.E., Kirykowicz, A.M., Woodward, J.D.

To be published.

Biological Assembly 1  

Global Symmetry: Helical - H  (Explore in 3D)
Global Stoichiometry: Homo 6-mer - A6 

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

Biological Assembly Evidence: gel filtration

Macromolecule Content

• Total Structure Weight: 238.6 kDa 
• Atom Count: 13,356 
• Modelled Residue Count: 1,734 
• Deposited Residue Count: 2,166 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Bifunctional nitrilase/nitrile hydratase NIT4	A [auth F], B [auth E], C [auth D], D [auth C], E [auth B], F [auth A]	361	Arabidopsis thaliana	Mutation(s): 0  Gene Names: NIT4, At5g22300, MWD9.8 EC: 3.5.5.1 (PDB Primary Data), 3.5.5.4 (PDB Primary Data), 4.2.1.65 (PDB Primary Data)
UniProt
Find proteins for P46011 (Arabidopsis thaliana) Explore P46011  Go to UniProtKB:  P46011

Experimental Data & Validation

Experimental Data

• Method: ELECTRON MICROSCOPY
• Resolution: 3.90 Å
• Aggregation State: FILAMENT 
• Reconstruction Method: HELICAL 

EM Software:

Task	Software Package	Version
MODEL REFINEMENT	PHENIX	1.14
RECONSTRUCTION	RELION	2.0

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2019-11-20 
Deposition Author(s): Mulelu, A.E., Woodward, J.D.

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Funding Organization	Location	Grant Number
National Research Foundation in South Africa	South Africa	Research Career Advancement Fellowship
	United Kingdom	Start: Synchrotron Techniques for African Research and Technology, ST/R002754/1

Revision History  

• Version 1.0: 2019-11-20
  Type: Initial release
  
• Version 1.1: 2019-12-18
  Changes: Other