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 1.3 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: 10.1038/376745a0
  • Structures With Same Primary Citation

  • 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 positione ...

    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: Sequence   |   Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
microcystin LR
M, N
7Microcystis aeruginosaMutation(s): 0 
Protein Feature View
  • Reference Sequence

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
PROTEIN SERINE/THREONINE PHOSPHATASE-1 (ALPHA ISOFORM, TYPE 1)
A, B
330Oryctolagus cuniculusMutation(s): 0 
Gene Names: PPP1CAPPP1A
EC: 3.1.3.16
Find proteins for P62139 (Oryctolagus cuniculus)
Go to UniProtKB:  P62139
Protein Feature View
  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
BME
Query on BME

Download CCD File 
A, B
BETA-MERCAPTOETHANOL
C2 H6 O S
DGVVWUTYPXICAM-UHFFFAOYSA-N
 Ligand Interaction
MN
Query on MN

Download CCD File 
A, B
MANGANESE (II) ION
Mn
WAEMQWOKJMHJLA-UHFFFAOYSA-N
 Ligand Interaction
Biologically Interesting Molecules 1 Unique
IDChainsNameType/Class2D Diagram3D Interactions
PRD_000212 (0D5)
Query on PRD_000212
M, NMicrocystin 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 

  • 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