1KGD

Crystal Structure of the Guanylate Kinase-like Domain of Human CASK


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.314 Å
  • R-Value Free: 0.212 
  • R-Value Work: 0.186 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structural basis for nucleotide-dependent regulation of membrane-associated guanylate kinase-like domains.

Li, Y.Spangenberg, O.Paarmann, I.Konrad, M.Lavie, A.

(2002) J.Biol.Chem. 277: 4159-4165

  • DOI: 10.1074/jbc.M110792200

  • PubMed Abstract: 
  • CASK is a member of the membrane-associated guanylate kinases (MAGUK) homologs, a family of proteins that scaffold protein complexes at particular regions of the plasma membrane by utilizing multiple protein-binding domains. The GK domain of MAGUKs, ...

    CASK is a member of the membrane-associated guanylate kinases (MAGUK) homologs, a family of proteins that scaffold protein complexes at particular regions of the plasma membrane by utilizing multiple protein-binding domains. The GK domain of MAGUKs, which shares high similarity in amino acid sequence with yeast guanylate kinase (yGMPK), is the least characterized MAGUK domain both in structure and function. In addition to its scaffolding function, the GK domain of hCASK has been shown to be involved in transcription regulation. Here we report the crystal structure of the GK domain of human CASK (hCASK-GK) at 1.3-A resolution. The structure rationalizes the inability of the GK domain to catalyze phosphoryl transfer and strongly supports its new function as a protein-binding module. Comparison of the hCASK-GK structure with the available crystal structures of yGMPK provides insight into possible conformational changes that occur in hCASK upon GMP binding. These conformational changes may act to regulate hCASK-GK function in a nucleotide-dependent manner.


    Organizational Affiliation

    Department of Biochemistry and Molecular Biology, University of Illinois at Chicago, 60607, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
PERIPHERAL PLASMA MEMBRANE CASK
A
180Homo sapiensGene Names: CASK (LIN2)
EC: 2.7.11.1
Find proteins for O14936 (Homo sapiens)
Go to Gene View: CASK
Go to UniProtKB:  O14936
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
FMT
Query on FMT

Download SDF File 
Download CCD File 
A
FORMIC ACID
C H2 O2
BDAGIHXWWSANSR-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.314 Å
  • R-Value Free: 0.212 
  • R-Value Work: 0.186 
  • Space Group: P 32 2 1
Unit Cell:
Length (Å)Angle (°)
a = 70.341α = 90.00
b = 70.341β = 90.00
c = 74.861γ = 120.00
Software Package:
Software NamePurpose
SOLVEphasing
SCALEPACKdata scaling
REFMACrefinement
DENZOdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2001-12-19
    Type: Initial release
  • Version 1.1: 2008-04-27
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance