6NH9

Crystal structure of a human calcium/calmodulin dependent serine protein kinase (CASK) PDZ domain

• PDB DOI: https://doi.org/10.2210/pdb6NH9/pdb

• Classification: PROTEIN BINDING
• Organism(s): Homo sapiens
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2018-12-21 Released: 2019-12-25 
• Deposition Author(s): Sun, Y.J., Gakhar, L., Fuentes, E.J.
• Funding Organization(s): American Heart Association

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.85 Å
• R-Value Free: 0.263 
• R-Value Work: 0.226 
• R-Value Observed: 0.228 

Literature

CASK PDZ domain specificity

Sun, Y.J., Hou, T., Fuentes, E.J.

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.

Biological Assembly 3  

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

Biological assembly 3 assigned by authors.

Macromolecule Content

• Total Structure Weight: 30.36 kDa 
• Atom Count: 2,157 
• Modelled Residue Count: 257 
• Deposited Residue Count: 264 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Peripheral plasma membrane protein CASK	A, B, C	88	Homo sapiens	Mutation(s): 0  Gene Names: CASK, LIN2 EC: 2.7.11.1
UniProt & NIH Common Fund Data Resources
Find proteins for O14936 (Homo sapiens) Explore O14936  Go to UniProtKB:  O14936
PHAROS:  O14936 GTEx:  ENSG00000147044

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.85 Å
• R-Value Free: 0.263 
• R-Value Work: 0.226 
• R-Value Observed: 0.228 
• Space Group: C 1 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 61.052	α = 90
b = 35.4	β = 90.31
c = 119.487	γ = 90

Software Package:

Software Name	Purpose
PHENIX	refinement
Blu-Ice	data collection
XDS	data reduction
pointless	data scaling
Aimless	data scaling
PHASER	phasing
Coot	model building

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2019-12-25 
Deposition Author(s): Sun, Y.J., Gakhar, L., Fuentes, E.J.

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Funding Organization	Location	Grant Number
American Heart Association	United States	15GRNT25740021

Revision History  

• Version 1.0: 2019-12-25
  Type: Initial release
  
• Version 1.1: 2024-03-13
  Changes: Data collection, Database references