4Q6T | pdb_00004q6t

The crystal structure of a class V chitininase from Pseudomonas fluorescens Pf-5

• PDB DOI: https://doi.org/10.2210/pdb4Q6T/pdb

• Classification: HYDROLASE
• Organism(s): Pseudomonas protegens Pf-5
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2014-04-23 Released: 2014-05-07 
• Deposition Author(s): Tan, K., Mack, J.C., Endres, M., Joachimiak, A., Midwest Center for Structural Genomics (MCSG)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.40 Å
• R-Value Free: 
  0.172 (Depositor), 0.172 (DCC) 
• R-Value Work: 
  0.136 (Depositor), 0.136 (DCC) 
• R-Value Observed: 
  0.138 (Depositor) 

Literature

The crystal structure of a class V chitininase from Pseudomonas fluorescens Pf-5

Tan, K., Mack, J.C., Endres, M., Joachimiak, A.

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)

Macromolecule Content

• Total Structure Weight: 38.66 kDa 
• Atom Count: 3,006 
• Modelled Residue Count: 337 
• Deposited Residue Count: 351 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Glycosyl hydrolase, family 18	A	351	Pseudomonas protegens Pf-5	Mutation(s): 0  Gene Names: PFL_1213
UniProt
Find proteins for Q4KHD9 (Pseudomonas fluorescens (strain ATCC BAA-477 / NRRL B-23932 / Pf-5)) Explore Q4KHD9  Go to UniProtKB:  Q4KHD9

Small Molecules

Ligands 4 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
CD	G [auth A]	CADMIUM ION Cd WLZRMCYVCSSEQC-UHFFFAOYSA-N
GOL	E [auth A]	GLYCEROL C3 H8 O3 PEDCQBHIVMGVHV-UHFFFAOYSA-N
NI	B [auth A], C [auth A], D [auth A]	NICKEL (II) ION Ni VEQPNABPJHWNSG-UHFFFAOYSA-N
CL	F [auth A]	CHLORIDE ION Cl VEXZGXHMUGYJMC-UHFFFAOYSA-M

Modified Residues  1 Unique
ID	Chains	Type	Formula	2D Diagram	Parent
MSE	A	L-PEPTIDE LINKING	C5 H11 N O2 Se		MET

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.40 Å
• R-Value Free:  0.172 (Depositor), 0.172 (DCC) 
• R-Value Work:  0.136 (Depositor), 0.136 (DCC) 
• R-Value Observed: 0.138 (Depositor) 

Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 52.022	α = 90
b = 57.327	β = 90
c = 110.797	γ = 90

Software Package:

Software Name	Purpose
SBC-Collect	data collection
SHELXS	phasing
MLPHARE	phasing
DM	model building
ARP	model building
WARP	model building
PHENIX	refinement
HKL-3000	data reduction
HKL-3000	data scaling
DM	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2014-05-07 
Deposition Author(s): Tan, K., Mack, J.C., Endres, M., Joachimiak, A., Midwest Center for Structural Genomics (MCSG)

Revision History  

• Version 1.0: 2014-05-07
  Type: Initial release
  
• Version 1.1: 2017-11-22
  Changes: Refinement description
• Version 1.2: 2024-11-06
  Changes: Data collection, Database references, Derived calculations, Structure summary