1F3M

CRYSTAL STRUCTURE OF HUMAN SERINE/THREONINE KINASE PAK1


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.30 Å
  • R-Value Free: 0.258 
  • R-Value Work: 0.237 
  • R-Value Observed: 0.258 

wwPDB Validation   3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

Structure of PAK1 in an autoinhibited conformation reveals a multistage activation switch.

Lei, M.Lu, W.Meng, W.Parrini, M.C.Eck, M.J.Mayer, B.J.Harrison, S.C.

(2000) Cell 102: 387-397

  • DOI: 10.1016/s0092-8674(00)00043-x
  • Primary Citation of Related Structures:  
    1F3M

  • PubMed Abstract: 
  • The p21-activated kinases (PAKs), stimulated by binding with GTP-liganded forms of Cdc42 or Rac, modulate cytoskeletal actin assembly and activate MAP-kinase pathways. The 2.3 A resolution crystal structure of a complex between the N-terminal autoregulat ...

    The p21-activated kinases (PAKs), stimulated by binding with GTP-liganded forms of Cdc42 or Rac, modulate cytoskeletal actin assembly and activate MAP-kinase pathways. The 2.3 A resolution crystal structure of a complex between the N-terminal autoregulatory fragment and the C-terminal kinase domain of PAK1 shows that GTPase binding will trigger a series of conformational changes, beginning with disruption of a PAK1 dimer and ending with rearrangement of the kinase active site into a catalytically competent state. An inhibitory switch (IS) domain, which overlaps the GTPase binding region of PAK1, positions a polypeptide segment across the kinase cleft. GTPase binding will refold part of the IS domain and unfold the rest. A related switch has been seen in the Wiskott-Aldrich syndrome protein (WASP).


    Organizational Affiliation

    Laboratory of Molecular Medicine, Children's Hospital, Boston, Massachusetts 02115, USA.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
SERINE/THREONINE-PROTEIN KINASE PAK-ALPHA AB80Homo sapiensMutation(s): 0 
Gene Names: PAK1
EC: 2.7.1 (PDB Primary Data), 2.7.11.1 (UniProt)
Find proteins for Q13153 (Homo sapiens)
Explore Q13153 
Go to UniProtKB:  Q13153
NIH Common Fund Data Resources
PHAROS:  Q13153
Protein Feature View
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
SERINE/THREONINE-PROTEIN KINASE PAK-ALPHA CD297Homo sapiensMutation(s): 0 
Gene Names: PAK1
EC: 2.7.1 (PDB Primary Data), 2.7.11.1 (UniProt)
Find proteins for Q13153 (Homo sapiens)
Explore Q13153 
Go to UniProtKB:  Q13153
NIH Common Fund Data Resources
PHAROS:  Q13153
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
IOD
Query on IOD

Download Ideal Coordinates CCD File 
A, B, C, D
IODIDE ION
I
XMBWDFGMSWQBCA-UHFFFAOYSA-M
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.30 Å
  • R-Value Free: 0.258 
  • R-Value Work: 0.237 
  • R-Value Observed: 0.258 
  • Space Group: P 41
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 94.583α = 90
b = 94.583β = 90
c = 147.497γ = 90
Software Package:
Software NamePurpose
CNSrefinement
DENZOdata reduction
SCALEPACKdata scaling
CNSphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2000-06-29
    Type: Initial release
  • Version 1.1: 2008-04-27
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2017-02-01
    Changes: Structure summary