5LM1

Crystal Structure of HD-PTP phosphatase in complex with UBAP1


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.55 Å
  • R-Value Free: 0.254 
  • R-Value Work: 0.213 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Structural Basis for Selective Interaction between the ESCRT Regulator HD-PTP and UBAP1.

Gahloth, D.Levy, C.Heaven, G.Stefani, F.Wunderley, L.Mould, P.Cliff, M.J.Bella, J.Fielding, A.J.Woodman, P.Tabernero, L.

(2016) Structure 24: 2115-2126

  • DOI: 10.1016/j.str.2016.10.006
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Endosomal sorting complexes required for transport¬†(ESCRTs) are essential for ubiquitin-dependent degradation of mitogenic receptors, a process often compromised in cancer pathologies. Sorting of ubiquinated receptors via ESCRTs is controlled by the ...

    Endosomal sorting complexes required for transport (ESCRTs) are essential for ubiquitin-dependent degradation of mitogenic receptors, a process often compromised in cancer pathologies. Sorting of ubiquinated receptors via ESCRTs is controlled by the tumor suppressor phosphatase HD-PTP. The specific interaction between HD-PTP and the ESCRT-I subunit UBAP1 is critical for degradation of growth factor receptors and integrins. Here, we present the structural characterization by X-ray crystallography and double electron-electron resonance spectroscopy of the coiled-coil domain of HD-PTP and its complex with UBAP1. The coiled-coil domain adopts an unexpected open and rigid conformation that contrasts with the closed and flexible coiled-coil domain of the related ESCRT regulator Alix. The HD-PTP:UBAP1 structure identifies the molecular determinants of the interaction and provides a molecular basis for the specific functional cooperation between HD-PTP and UBAP1. Our findings provide insights into the molecular mechanisms of regulation of ESCRT pathways that could be relevant to anticancer therapies.


    Organizational Affiliation

    School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester M13 9PT, UK.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Tyrosine-protein phosphatase non-receptor type 23
A
352Homo sapiensMutation(s): 0 
Gene Names: PTPN23 (KIAA1471)
EC: 3.1.3.48
Find proteins for Q9H3S7 (Homo sapiens)
Go to Gene View: PTPN23
Go to UniProtKB:  Q9H3S7
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
UBAP-1
B
20Homo sapiensMutation(s): 0 
Gene Names: UBAP1
Find proteins for Q9NZ09 (Homo sapiens)
Go to Gene View: UBAP1
Go to UniProtKB:  Q9NZ09
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.55 Å
  • R-Value Free: 0.254 
  • R-Value Work: 0.213 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 48.930α = 90.00
b = 93.270β = 90.00
c = 102.220γ = 90.00
Software Package:
Software NamePurpose
PHASERphasing
xia2data reduction
xia2data scaling
PHENIXrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

  • Deposited Date: 2016-07-28 
  • Released Date: 2016-11-30 
  • Deposition Author(s): Levy, C.

Revision History 

  • Version 1.0: 2016-11-30
    Type: Initial release
  • Version 1.1: 2016-12-14
    Type: Database references