1FJM

Protein serine/threonine phosphatase-1 (alpha isoform, type 1) complexed with microcystin-LR toxin


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.10 Å
  • R-Value Work: 0.178 
  • R-Value Observed: 0.178 

wwPDB Validation   3D Report Full Report


This is version 2.0 of the entry. See complete history


Literature

Three-dimensional structure of the catalytic subunit of protein serine/threonine phosphatase-1.

Goldberg, J.Huang, H.B.Kwon, Y.G.Greengard, P.Nairn, A.C.Kuriyan, J.

(1995) Nature 376: 745-753

  • DOI: https://doi.org/10.1038/376745a0
  • Primary Citation of Related Structures:  
    1FJM

  • PubMed Abstract: 

    The crystal structure of mammalian protein phosphatase-1, complexed with the toxin microcystin and determined at 2.1 A resolution, reveals that it is a metalloenzyme unrelated in architecture to the tyrosine phosphatases. Two metal ions are positioned by a central beta-alpha-beta-alpha-beta scaffold at the active site, from which emanate three surface grooves that are potential binding sites for substrates and inhibitors. The carboxy terminus is positioned at the end of one of the grooves such that regulatory sequences following the domain might modulate function. The fold of the catalytic domain is expected to be closely preserved in protein phosphatases 2A and 2B (calcineurin).


  • Organizational Affiliation

    Howard Hughes Medical Institute, Rockefeller University, New York, New York 10021, USA.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
PROTEIN SERINE/THREONINE PHOSPHATASE-1 (ALPHA ISOFORM, TYPE 1)
A, B
330Oryctolagus cuniculusMutation(s): 0 
EC: 3.1.3.16
UniProt
Find proteins for P62139 (Oryctolagus cuniculus)
Go to UniProtKB:  P62139
Sequence Annotations
Expand
  • Reference Sequence

Find similar proteins by:  Sequence   |   3D Structure  

Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
microcystin LRC [auth M],
D [auth N]
7Microcystis aeruginosaMutation(s): 0 
Sequence Annotations
Expand
  • Reference Sequence
Biologically Interesting Molecules (External Reference) 1 Unique
Entity ID: 2
IDChains NameType/Class2D Diagram3D Interactions
PRD_000212
Query on PRD_000212
C [auth M],
D [auth N]
Microcystin LROligopeptide / Toxin
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.10 Å
  • R-Value Work: 0.178 
  • R-Value Observed: 0.178 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 64.74α = 90
b = 77.11β = 90
c = 130.79γ = 90
Software Package:
Software NamePurpose
X-PLORmodel building
X-PLORrefinement
X-PLORphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 1996-06-20
    Type: Initial release
  • Version 1.1: 2008-03-24
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Database references, Derived calculations, Non-polymer description, Version format compliance
  • Version 1.3: 2012-12-12
    Changes: Other
  • Version 2.0: 2023-11-15
    Changes: Advisory, Atomic model, Data collection, Database references, Derived calculations, Other