Biological Assembly 1  

 3D View: Structure | Electron Density

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 2-mer - A1B1 

Biological assembly 1 assigned by authors and generated by PQS (software)

Macromolecule Content

• Total Structure Weight: 40.84 kDa 
• Atom Count: 2913 
• Modelled Residue Count: 343 
• Deposited Residue Count: 352 
• Unique protein chains: 2

1OHE

Structure of cdc14b phosphatase with a peptide ligand

• DOI: 10.2210/pdb1OHE/pdb

• Classification: HYDROLASE
• Organism(s): Homo sapiens, Escherichia coli
• Expression System: Spodoptera frugiperda
• Mutation(s): No 


• Deposited: 2003-05-24 Released: 2003-07-24 
• Deposition Author(s): Gray, C.H., Good, V.M., Tonks, N.K., Barford, D.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.20 Å
• R-Value Free: 0.253 
• R-Value Work: 0.207 
• R-Value Observed: 0.207 

Literature

The Structure of the Cell Cycle Protein Cdc14 Reveals a Proline-Directed Protein Phosphatase

Gray, C.H., Good, V.M., Tonks, N.K., Barford, D.

(2003) EMBO J 22: 3524

• PubMed: 12853468 
• DOI: 10.1093/emboj/cdg348
• Primary Citation of Related Structures:  
  1OHE, 1OHD, 1OHC


• PubMed Abstract: 
  

The Cdc14 family of dual-specificity protein phosphatases (DSPs) is conserved within eukaryotes and functions to down-regulate mitotic Cdk activities, promoting cytokinesis and mitotic exit. We have integrated structural and kinetic analyses to define the molecular mechanism of the dephosphorylation reaction catalysed by Cdc14. The structure of Cdc14 illustrates a novel arrangement of two domains, each with a DSP-like fold, arranged in tandem. The C-terminal domain contains the conserved PTP motif of the catalytic site, whereas the N-terminal domain, which shares no sequence similarity with other DSPs, contributes to substrate specificity, and lacks catalytic activity. The catalytic site is located at the base of a pronounced surface channel formed by the interface of the two domains, and regions of both domains interact with the phosphopeptide substrate. Specificity for a pSer-Pro motif is mediated by a hydrophobic pocket that is capable of accommodating the apolar Pro(P+1) residue of the peptide. Our structural and kinetic data support a role for Cdc14 in the preferential dephosphorylation of proteins modified by proline-directed kinases.

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Organizational Affiliation: 

Section of Structural Biology, Institute of Cancer Research, Chester Beatty Laboratories, 237 Fulham Road, London SW3 6JB, UK.

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
CDC14B2 PHOSPHATASE	A	348	Homo sapiens	Mutation(s): 0  Gene Names: CDC14B EC: 3.1.3.16 (UniProt), 3.1.3.48 (UniProt)
Find proteins for O60729 (Homo sapiens) Explore O60729  Go to UniProtKB:  O60729
NIH Common Fund Data Resources
PHAROS:  O60729 GTEx:  ENSG00000081377

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
PEPTIDE LIGAND	B	4	Escherichia coli	Mutation(s): 0

Small Molecules

Modified Residues  1 Unique
ID	Chains	Type	Formula	2D Diagram	Parent
SEP	B	L-PEPTIDE LINKING	C3 H8 N O6 P		SER

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.20 Å
• R-Value Free: 0.253 
• R-Value Work: 0.207 
• R-Value Observed: 0.207 
• Space Group: C 1 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 114.76	α = 90
b = 53.15	β = 117.48
c = 64.17	γ = 90

Software Package:

Software Name	Purpose
CNS	refinement
MOSFLM	data reduction
SCALA	data scaling
CNS	phasing

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2003-05-24 
• Released Date: 2003-07-24 
Deposition Author(s): Gray, C.H., Good, V.M., Tonks, N.K., Barford, D.

Revision History  

• Version 1.0: 2003-07-24
  Type: Initial release
  
• Version 1.1: 2011-05-08
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2019-05-08
  Changes: Data collection, Derived calculations, Experimental preparation, Other