9FBP | pdb_00009fbp

Deletion mutant MmChi60

• PDB DOI: https://doi.org/10.2210/pdb9FBP/pdb

• Classification: HYDROLASE
• Organism(s): Moritella marina
• Expression System: Escherichia coli 'BL21-Gold(DE3)pLysS AG
• Mutation(s): No 


• Deposited: 2024-05-14 Released: 2025-05-28 
• Deposition Author(s): Rypniewski, W., Bejger, M., Biniek-Antosiak, K.
• Funding Organization(s): Polish National Science Centre

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.84 Å
• R-Value Free: 
  0.219 (Depositor), 0.211 (DCC) 
• R-Value Work: 
  0.154 (Depositor), 0.169 (DCC) 

Starting Model: experimental

Literature

Probing the structure and thermodynamics of a psychrophilic chitinase

Bejger, M., Malecki, P.H., Biniek-Antosiak, K., Rypniewski, W.

To be published.

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.

Macromolecule Content 

• Total Structure Weight: 83.23 kDa 
• Atom Count: 6,107 
• Modeled Residue Count: 742 
• Deposited Residue Count: 742 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Chitinase 60	A, B	371	Moritella marina	Mutation(s): 0  Gene Names: chi60 EC: 3.2.1.14
UniProt
Find proteins for B1VBB0 (Moritella marina) Explore B1VBB0  Go to UniProtKB:  B1VBB0

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
NA (Subject of Investigation/LOI)	C [auth A], D [auth B]	SODIUM ION Na FKNQFGJONOIPTF-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.84 Å
• R-Value Free:  0.219 (Depositor), 0.211 (DCC) 
• R-Value Work:  0.154 (Depositor), 0.169 (DCC) 

Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 44.79	α = 90
b = 172.829	β = 90.006
c = 47.088	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
XDS	data reduction
XDS	data scaling
PHASER	phasing

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2025-05-28 
Deposition Author(s): Rypniewski, W., Bejger, M., Biniek-Antosiak, K.

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Funding Organization	Location	Grant Number
Polish National Science Centre	Poland	UMO-2017/27/B/NZ1/02201

Revision History  

• Version 1.0: 2025-05-28
  Type: Initial release
  
• Version 2.0: 2025-09-24
  Changes: Atomic model, Data collection, Database references, Derived calculations, Source and taxonomy, Structure summary