1MRV

crystal structure of an inactive Akt2 kinase domain

• PDB DOI: https://doi.org/10.2210/pdb1MRV/pdb

• Classification: TRANSFERASE
• Organism(s): Homo sapiens
• Expression System: Spodoptera frugiperda
• Mutation(s): No 


• Deposited: 2002-09-18 Released: 2003-09-23 
• Deposition Author(s): Huang, X., Begley, M., Morgenstern, K.A., Gu, Y., Rose, P., Zhao, H., Zhu, X.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.80 Å
• R-Value Free: 0.295 
• R-Value Work: 0.247 

Starting Model: experimental

Literature

Crystal structure of an inactive akt2 kinase domain

Huang, X., Begley, M., Morgenstern, K.A., Gu, Y., Rose, P., Zhao, H., Zhu, X.

(2003) Structure 11: 21-30

• PubMed: 12517337 
• DOI: https://doi.org/10.1016/s0969-2126(02)00937-1
• Primary Citation of Related Structures:  
  1MRV, 1MRY


• PubMed Abstract: 
  

  Akt/PKB represents a subfamily of three isoforms from the AGC serine/threonine kinase family. Amplification of Akt activity has been implicated in diseases that involve inappropriate cell survival, including a number of human malignancies. The structure of an inactive and unliganded Akt2 kinase domain reveals several features that distinguish it from other kinases. Most of the alpha helix C is disordered. The activation loop in this structure adopts a conformation that appears to sterically hinder the binding of both ATP and peptide substrate. In addition, an intramolecular disulfide bond is observed between two cysteines in the activation loop. Residues within the linker region between the N- and C-terminal lobes also contribute to the inactive conformation by partially occupying the ATP binding site.

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Organizational Affiliation: 

Amgen Cambridge Research Center, One Kendall Square, Building 1000, Cambridge, MA 02139, USA. [e-mail]

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 39.31 kDa 
• Atom Count: 2,150 
• Modelled Residue Count: 261 
• Deposited Residue Count: 339 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
RAC-beta serine/threonine kinase	A	339	Homo sapiens	Mutation(s): 0  Gene Names: AKT2 EC: 2.7.1 (PDB Primary Data), 2.7.11.1 (UniProt)
UniProt & NIH Common Fund Data Resources
Find proteins for P31751 (Homo sapiens) Explore P31751  Go to UniProtKB:  P31751
PHAROS:  P31751 GTEx:  ENSG00000105221

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.80 Å
• R-Value Free: 0.295 
• R-Value Work: 0.247 
• Space Group: P 4₁ 2₁ 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 150.44	α = 90
b = 150.44	β = 90
c = 40.18	γ = 90

Software Package:

Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
AMoRE	phasing
CNS	refinement

Structure Validation

Entry History 

Deposition Data

• Released Date: 2003-09-23 
Deposition Author(s): Huang, X., Begley, M., Morgenstern, K.A., Gu, Y., Rose, P., Zhao, H., Zhu, X.

Revision History  

• Version 1.0: 2003-09-23
  Type: Initial release
  
• Version 1.1: 2008-04-28
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2024-02-14
  Changes: Data collection, Database references
• Version 1.4: 2024-04-03
  Changes: Refinement description