6LE7

Crystal structure of nematode family I chitinase,CeCht1, in complex with dihydropyrrolopyrazol-6-one derivate 2

• PDB DOI: https://doi.org/10.2210/pdb6LE7/pdb

• Classification: HYDROLASE
• Organism(s): Caenorhabditis elegans
• Expression System: Komagataella phaffii GS115
• Mutation(s): No 


• Deposited: 2019-11-24 Released: 2021-05-26 
• Deposition Author(s): Chen, Q., Yang, Q., Zhou, Y.
• Funding Organization(s): National Natural Science Foundation of China

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.86 Å
• R-Value Free: 0.257 
• R-Value Work: 0.216 
• R-Value Observed: 0.219 

Literature

Crystal structure of nematode family I chitinase,CeCht1, in complex with dihydropyrrolopyrazol-6-one derivate 2

Chen, Q., Yang, Q., Zhou, Y.

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: 42.62 kDa 
• Atom Count: 3,273 
• Modelled Residue Count: 381 
• Deposited Residue Count: 381 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Probable endochitinase	A	381	Caenorhabditis elegans	Mutation(s): 0  Gene Names: cht-1, C04F6.3 EC: 3.2.1.14
UniProt
Find proteins for Q11174 (Caenorhabditis elegans) Explore Q11174  Go to UniProtKB:  Q11174

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
EA9 (Subject of Investigation/LOI)	B [auth A]	(4R)-3-(2-hydroxyphenyl)-4-(3-methoxy-4-propoxy-phenyl)-5-(pyridin-3-ylmethyl)-1,4-dihydropyrrolo[3,4-c]pyrazol-6-one C27 H26 N4 O4 VDJNZGXOMKRJML-AREMUKBSSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.86 Å
• R-Value Free: 0.257 
• R-Value Work: 0.216 
• R-Value Observed: 0.219 
• Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 47.634	α = 90
b = 67.119	β = 103.657
c = 57.062	γ = 90

Software Package:

Software Name	Purpose
PHENIX	refinement
HKL-3000	data reduction
HKL-3000	data scaling
PHASER	phasing

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2021-05-26 
Deposition Author(s): Chen, Q., Yang, Q., Zhou, Y.

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Funding Organization	Location	Grant Number
National Natural Science Foundation of China	China	31801776

Revision History  

• Version 1.0: 2021-05-26
  Type: Initial release
  
• Version 1.1: 2023-11-22
  Changes: Data collection, Database references, Refinement description