9BUF | pdb_00009buf

Hydrolase domain of Chitinase 1 from Streptomyces venezuelae

• PDB DOI: https://doi.org/10.2210/pdb9BUF/pdb

• Classification: HYDROLASE
• Organism(s): Streptomyces venezuelae ATCC 10712
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2024-05-17 Released: 2025-08-27 
• Deposition Author(s): Dalton, J.A.T., Smith, O.B., Frkic, R.L., Jackson, C.J.
• Funding Organization(s): Australian Research Council (ARC)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.75 Å
• R-Value Free: 
  0.232 (Depositor), 0.229 (DCC) 
• R-Value Work: 
  0.195 (Depositor), 0.191 (DCC) 
• R-Value Observed: 
  0.197 (Depositor) 

Starting Model: in silico

Literature

Hydrolase domain of Chitinase 1 from Streptomyces venezuelae

Dalton, J.A.T., Smith, O.B., Frkic, R.L., Jackson, C.J.

To be published.

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Biological Assembly Evidence: gel filtration

Biological Assembly 2  

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

Biological assembly 2 assigned by authors.

Macromolecule Content 

• Total Structure Weight: 65.56 kDa 
• Atom Count: 4,893 
• Modeled Residue Count: 591 
• Deposited Residue Count: 630 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Exochitinase 1	A, B	315	Streptomyces venezuelae ATCC 10712	Mutation(s): 0  Gene Names: SVEN_2589 EC: 3.2.1.14
UniProt
Find proteins for F2R3N3 (Streptomyces venezuelae (strain ATCC 10712 / CBS 650.69 / DSM 40230 / JCM 4526 / NBRC 13096 / PD 04745)) Explore F2R3N3  Go to UniProtKB:  F2R3N3

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
SO4	C [auth A], D [auth A]	SULFATE ION O4 S QAOWNCQODCNURD-UHFFFAOYSA-L
ACT	E [auth A]	ACETATE ION C2 H3 O2 QTBSBXVTEAMEQO-UHFFFAOYSA-M

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.75 Å
• R-Value Free:  0.232 (Depositor), 0.229 (DCC) 
• R-Value Work:  0.195 (Depositor), 0.191 (DCC) 
• R-Value Observed: 0.197 (Depositor) 

Space Group: I 1 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 77.529	α = 90
b = 54.769	β = 92.13
c = 144.421	γ = 90

Software Package:

Software Name	Purpose
PHENIX	refinement
Aimless	data scaling
XDS	data reduction
PHASER	phasing

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2025-08-27 
Deposition Author(s): Dalton, J.A.T., Smith, O.B., Frkic, R.L., Jackson, C.J.

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Funding Organization	Location	Grant Number
Australian Research Council (ARC)	Australia	CE200100012
Australian Research Council (ARC)	Australia	CE200100029

Revision History  

• Version 1.0: 2025-08-27
  Type: Initial release