1LL4

STRUCTURE OF C. IMMITIS CHITINASE 1 COMPLEXED WITH ALLOSAMIDIN

• PDB DOI: https://doi.org/10.2210/pdb1LL4/pdb

• Classification: HYDROLASE
• Organism(s): Coccidioides immitis
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2002-04-26 Released: 2002-09-25 
• Deposition Author(s): Bortone, K., Monzingo, A.F., Ernst, S., Robertus, J.D.

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.80 Å
• R-Value Free: 0.258 
• R-Value Work: 0.197 

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Biological Assembly 2  

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

Biological assembly 2 assigned by authors.

Biological Assembly 3  

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

Biological assembly 3 assigned by authors.

Biological Assembly 4  

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

Biological assembly 4 assigned by authors.

Macromolecule Content

• Total Structure Weight: 177.42 kDa 
• Atom Count: 12,604 
• Modelled Residue Count: 1,568 
• Deposited Residue Count: 1,568 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
CHITINASE 1	A, B, C, D	392	Coccidioides immitis	Mutation(s): 0  Gene Names: CTS1 EC: 3.2.1.14
UniProt
Find proteins for P0CB51 (Coccidioides posadasii (strain RMSCC 757 / Silveira)) Explore P0CB51  Go to UniProtKB:  P0CB51

Oligosaccharides

Help

Entity ID: 2
Molecule	Chains	Length	2D Diagram	Glycosylation	3D Interactions
2-acetamido-2-deoxy-beta-D-allopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-allopyranose	E, F, G, H	2		N/A
Glycosylation Resources
GlyTouCan:  G77950XB GlyCosmos:  G77950XB

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
AMI	I [auth A], J [auth B], K [auth C], L [auth D]	ALLOSAMIZOLINE C9 H16 N2 O4 MKJAYSJDHSEFRI-PVFLNQBWSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.80 Å
• R-Value Free: 0.258 
• R-Value Work: 0.197 
• Space Group: P 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 61.045	α = 80.61
b = 78.19	β = 82.27
c = 88.457	γ = 66.72

Software Package:

Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
EPMR	phasing
X-PLOR	refinement

Structure Validation

Entry History 

Deposition Data

• Released Date: 2002-09-25 
Deposition Author(s): Bortone, K., Monzingo, A.F., Ernst, S., Robertus, J.D.

Revision History  

• Version 1.0: 2002-09-25
  Type: Initial release
  
• Version 1.1: 2008-04-28
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 2.0: 2020-07-29
  Type: Remediation
  Reason: Carbohydrate remediation
  Changes: Atomic model, Data collection, Derived calculations, Structure summary
• Version 2.1: 2023-08-16
  Changes: Data collection, Database references, Refinement description, Structure summary