7A68

proteinase K crystallized from 0.5 M NaNO3

• PDB DOI: https://doi.org/10.2210/pdb7A68/pdb

• Classification: HYDROLASE
• Organism(s): Parengyodontium album
• Expression System: Parengyodontium album
• Mutation(s): No 


• Deposited: 2020-08-25 Released: 2020-10-21 
• Deposition Author(s): Ilina, K.B., Kulikov, A.G., Timofeev, V.I., Marchenkova, M.A., Pisarevsky, Y.V., Kovalchuk, M.V.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.55 Å
• R-Value Free: 
  0.200 (Depositor), 0.200 (DCC) 
• R-Value Work: 
  0.147 (Depositor), 0.160 (DCC) 
• R-Value Observed: 
  0.150 (Depositor) 

Starting Model: experimental

Literature

proteinase K crystallized from 0.5 M NaNO3

Ilina, K.B., Kulikov, A.G., Timofeev, V.I., Marchenkova, M.A., Pisarevsky, Y.V., Kovalchuk, M.V.

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: 29 kDa 
• Atom Count: 2,123 
• Modelled Residue Count: 279 
• Deposited Residue Count: 279 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Proteinase K	A	279	Parengyodontium album	Mutation(s): 0  Gene Names: PROK EC: 3.4.21.64
UniProt
Find proteins for P06873 (Parengyodontium album) Explore P06873  Go to UniProtKB:  P06873

Small Molecules

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

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.55 Å
• R-Value Free:  0.200 (Depositor), 0.200 (DCC) 
• R-Value Work:  0.147 (Depositor), 0.160 (DCC) 
• R-Value Observed: 0.150 (Depositor) 

Space Group: P 4₃ 2₁ 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 68.32	α = 90
b = 68.32	β = 90
c = 108.1	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
PDB_EXTRACT	data extraction
iMOSFLM	data reduction
SCALA	data scaling
PHASER	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2020-10-21 
Deposition Author(s): Ilina, K.B., Kulikov, A.G., Timofeev, V.I., Marchenkova, M.A., Pisarevsky, Y.V., Kovalchuk, M.V.

Revision History  

• Version 1.0: 2020-10-21
  Type: Initial release
  
• Version 1.1: 2024-01-31
  Changes: Data collection, Database references, Refinement description
• Version 1.2: 2024-10-09
  Changes: Structure summary