2LRU

Solution Structure of the WNK1 Autoinhibitory Domain


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 500 
  • Conformers Submitted: 20 
  • Selection Criteria: structures with the lowest energy 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Solution Structure of the WNK1 Autoinhibitory Domain, a WNK-Specific PF2 Domain.

Moon, T.M.Correa, F.Kinch, L.N.Piala, A.T.Gardner, K.H.Goldsmith, E.J.

(2013) J.Mol.Biol. 425: 1245-1252

  • DOI: 10.1016/j.jmb.2013.01.031

  • PubMed Abstract: 
  • WNK1 [with no lysine (K)-1] is a 250-kDa serine/threonine protein kinase involved in the maintenance of cellular salt levels and is directly linked to a hereditary form of hypertension. Here, we report the solution NMR structure of the autoinhibitory ...

    WNK1 [with no lysine (K)-1] is a 250-kDa serine/threonine protein kinase involved in the maintenance of cellular salt levels and is directly linked to a hereditary form of hypertension. Here, we report the solution NMR structure of the autoinhibitory domain of WNK1 (WNK1-AI), a small regulatory subunit that lies immediately C-terminal of the kinase domain. We show that this domain is a homolog of the RFXV-binding PASK/FRAY homology 2 (PF2) domain found in OSR (oxidative stress responsive) and SPAK (serine/threonine proline-alanine-rich) kinases, which are substrates of WNK1. The WNK1-AI has a circularly permuted topology relative to the OSR1-PF2 domain. Nevertheless, like PF2 domains, WNK1-AI binds peptides that contain an RFXV motif with micromolar affinities as assessed by changes in (1)H,(15)N heteronuclear single quantum coherence spectra. Mutations to the WNK1-AI and binding peptides confirm a similar binding mode.


    Organizational Affiliation

    Department of Pharmacology, College of Medicine, University of Vermont, 89 Beaumont Avenue, Burlington, VT 05405, USA. thomas.moon@uvm.edu




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Serine/threonine-protein kinase WNK1
A
98Rattus norvegicusGene Names: Wnk1 (Hsn2, Prkwnk1)
EC: 2.7.11.1
Find proteins for Q9JIH7 (Rattus norvegicus)
Go to UniProtKB:  Q9JIH7
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 500 
  • Conformers Submitted: 20 
  • Selection Criteria: structures with the lowest energy 
  • Olderado: 2LRU Olderado

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2012-05-23
    Type: Initial release
  • Version 1.1: 2013-02-20
    Type: Database references
  • Version 1.2: 2013-04-24
    Type: Database references