6FJW

Streptococcus thermophilus Cas6

• PDB DOI: https://doi.org/10.2210/pdb6FJW/pdb

• Classification: HYDROLASE
• Organism(s): Streptococcus thermophilus
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2018-01-23 Released: 2019-02-06 
• Deposition Author(s): Tamulaitiene, G., Mogila, I., Siksnys, V., Tamulaitis, G.
• Funding Organization(s): Research council of Lthuania

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.70 Å
• R-Value Free: 0.252 
• R-Value Work: 0.213 
• R-Value Observed: 0.217 

Literature

Streptococcus thermophilus Cas6

Mogila, I., Kazlauskiene, M., Tamulaitiene, G., Siksnys, V., Tamulaitis, G.

To be published.

Biological Assembly 1  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 1 assigned by authors and generated by PISA (software)

Biological Assembly Evidence: homology

Macromolecule Content

• Total Structure Weight: 28.73 kDa 
• Atom Count: 1,871 
• Modelled Residue Count: 239 
• Deposited Residue Count: 243 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Cas6 protein	A	243	Streptococcus thermophilus	Mutation(s): 0  Gene Names: cas6 EC: 3.1
UniProt
Find proteins for A0A0A7HF73 (Streptococcus thermophilus) Explore A0A0A7HF73  Go to UniProtKB:  A0A0A7HF73

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
CA	B [auth A]	CALCIUM ION Ca BHPQYMZQTOCNFJ-UHFFFAOYSA-N

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: 2.70 Å
• R-Value Free: 0.252 
• R-Value Work: 0.213 
• R-Value Observed: 0.217 
• Space Group: P 3₁ 1 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 91.469	α = 90
b = 91.469	β = 90
c = 72.419	γ = 120

Software Package:

Software Name	Purpose
PHENIX	refinement
XDS	data reduction
SCALA	data scaling
SHELXDE	phasing
PDB_EXTRACT	data extraction

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2019-02-06 
Deposition Author(s): Tamulaitiene, G., Mogila, I., Siksnys, V., Tamulaitis, G.

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Funding Organization	Location	Grant Number
Research council of Lthuania	Lithuania	APP-3/2016

Revision History  

• Version 1.0: 2019-02-06
  Type: Initial release
  
• Version 1.1: 2024-10-23
  Changes: Data collection, Database references, Derived calculations, Structure summary