3HHT

A mutant of the nitrile hydratase from Geobacillus pallidus having enhanced thermostability

• PDB DOI:  https://doi.org/10.2210/pdb3HHT/pdb

• Classification: LYASE
• Organism(s): Aeribacillus pallidus
• Expression System: Escherichia coli
• Mutation(s): Yes 


• Deposited: 2009-05-17 Released: 2009-07-14 
• Deposition Author(s): Van Wyk, J.C., Sewell, B.T., Cowan, D.A., Sayed, M.F., Tsekoa, T.L., Tastan Bishop, A.O.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.16 Å
• R-Value Free: 0.144 
• R-Value Work: 0.127 
• R-Value Observed: 0.128 

Literature

The high-resolution structure of a Cobalt containing nitrile hydratase

Van Wyk, J.C., Tastan Bishop, A.O., Cowan, D.A., Sayed, M.F., Tsekoa, T.L., Sewell, B.T.

To be published.

Biological Assembly 1  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Hetero 4-mer - A2B2 

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

Macromolecule Content

• Total Structure Weight: 51.26 kDa 
• Atom Count: 4,028 
• Modelled Residue Count: 429 
• Deposited Residue Count: 445 
• Unique protein chains: 2

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Nitrile hydratase alpha subunit	A	216	Aeribacillus pallidus	Mutation(s): 1  EC: 4.2.1.84
UniProt
Find proteins for Q84FS5 (Bacillus sp. RAPc8) Explore Q84FS5  Go to UniProtKB:  Q84FS5

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Nitrile hydratase beta subunit	B	229	Aeribacillus pallidus	Mutation(s): 3  EC: 4.2.1.84
UniProt
Find proteins for Q84FS6 (Bacillus sp. RAPc8) Explore Q84FS6  Go to UniProtKB:  Q84FS6

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
3CO	C [auth A]	COBALT (III) ION Co JAWGVVJVYSANRY-UHFFFAOYSA-N
CL	D [auth A], E [auth B]	CHLORIDE ION Cl VEXZGXHMUGYJMC-UHFFFAOYSA-M

Modified Residues  1 Unique
ID	Chains	Type	Formula	2D Diagram	Parent
CSD	A	L-PEPTIDE LINKING	C3 H7 N O4 S		CYS

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.16 Å
• R-Value Free: 0.144 
• R-Value Work: 0.127 
• R-Value Observed: 0.128 
• Space Group: P 4₁ 2₁ 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 105.832	α = 90
b = 105.832	β = 90
c = 83.723	γ = 90

Software Package:

Software Name	Purpose
d*TREK	data scaling
PHASER	phasing
REFMAC	refinement
PDB_EXTRACT	data extraction
MxCuBE	data collection
d*TREK	data reduction

Structure Validation

Entry History 

Deposition Data

• Released Date: 2009-07-14 
Deposition Author(s): Van Wyk, J.C., Sewell, B.T., Cowan, D.A., Sayed, M.F., Tsekoa, T.L., Tastan Bishop, A.O.

Revision History  

• Version 1.0: 2009-07-14
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Version format compliance
• Version 1.2: 2021-10-13
  Changes: Database references, Derived calculations
• Version 1.3: 2023-09-06
  Changes: Data collection, Refinement description