2LB1

Structure of the second domain of human Smurf1 in complex with a human Smad1 derived peptide

Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 300 
  • Conformers Submitted: 20 
  • Selection Criteria: structures with acceptable covalent geometry 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history. 


Literature

A Smad action turnover switch operated by WW domain readers of a phosphoserine code.

Aragon, E., Goerner, N., Zaromytidou, A.I., Xi, Q., Escobedo, A., Massague, J., Macias, M.J.

(2011) Genes Dev 25: 1275-1288

  • DOI: 10.1101/gad.2060811
  • Primary Citation of Related Structures:  
    2LAZ, 2LAY, 2LAX, 2LAW, 2LAJ, 2LB3, 2LB2, 2LB1, 2LB0

  • PubMed Abstract: 

    • When directed to the nucleus by TGF-β or BMP signals, Smad proteins undergo cyclin-dependent kinase 8/9 (CDK8/9) and glycogen synthase kinase-3 (GSK3) phosphorylations that mediate the binding of YAP and Pin1 for transcriptional action, and of ubiquitin ligases Smurf1 and Nedd4L for Smad destruction ...

    When directed to the nucleus by TGF-β or BMP signals, Smad proteins undergo cyclin-dependent kinase 8/9 (CDK8/9) and glycogen synthase kinase-3 (GSK3) phosphorylations that mediate the binding of YAP and Pin1 for transcriptional action, and of ubiquitin ligases Smurf1 and Nedd4L for Smad destruction. Here we demonstrate that there is an order of events-Smad activation first and destruction later-and that it is controlled by a switch in the recognition of Smad phosphoserines by WW domains in their binding partners. In the BMP pathway, Smad1 phosphorylation by CDK8/9 creates binding sites for the WW domains of YAP, and subsequent phosphorylation by GSK3 switches off YAP binding and adds binding sites for Smurf1 WW domains. Similarly, in the TGF-β pathway, Smad3 phosphorylation by CDK8/9 creates binding sites for Pin1 and GSK3, then adds sites to enhance Nedd4L binding. Thus, a Smad phosphoserine code and a set of WW domain code readers provide an efficient solution to the problem of coupling TGF-β signal delivery to turnover of the Smad signal transducers.

    Organizational Affiliation: 

    Structural and Computational Biology Programme, Institute for Research in Biomedicine, Barcelona, Spain.



Macromolecules
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(by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
E3 ubiquitin-protein ligase SMURF1 A36Homo sapiensMutation(s): 0 
Gene Names: SMURF1, KIAA1625
EC: 6.3.2 (PDB Primary Data), 2.3.2.26 (UniProt)
Find proteins for Q9HCE7 (Homo sapiens)
Explore Q9HCE7 
Go to UniProtKB:  Q9HCE7
NIH Common Fund Data Resources
PHAROS:  Q9HCE7
GTEx:  ENSG00000198742
Protein Feature View
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  • Reference Sequence
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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Mothers against decapentaplegic homolog 1 B15Homo sapiensMutation(s): 0 
Gene Names: SMAD1, BSP1, MADH1, MADR1
Find proteins for Q15797 (Homo sapiens)
Explore Q15797 
Go to UniProtKB:  Q15797
NIH Common Fund Data Resources
PHAROS:  Q15797
GTEx:  ENSG00000170365
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 300 
  • Conformers Submitted: 20 
  • Selection Criteria: structures with acceptable covalent geometry 
  • OLDERADO: 2LB1 Olderado

Structure Validation

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View more in-depth experimental data

Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2011-07-06
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance
  • Version 1.2: 2016-04-27
    Changes: Structure summary