2NMB

DNUMB PTB DOMAIN COMPLEXED WITH A PHOSPHOTYROSINE PEPTIDE, NMR, ENSEMBLE OF STRUCTURES.


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 200 
  • Conformers Submitted: 14 
  • Selection Criteria: NO NOE VIOLATION > 0.3 A 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structure of a Numb PTB domain-peptide complex suggests a basis for diverse binding specificity.

Li, S.C.Zwahlen, C.Vincent, S.J.McGlade, C.J.Kay, L.E.Pawson, T.Forman-Kay, J.D.

(1998) Nat.Struct.Mol.Biol. 5: 1075-1083

  • DOI: 10.1038/4185

  • PubMed Abstract: 
  • The phosphotyrosine-binding (PTB) domain of Numb, a protein involved in asymmetric cell division, has recently been shown to bind to the adapter protein Lnx through an LDNPAY sequence, to the Numb-associated kinase (Nak) through a sequence that does ...

    The phosphotyrosine-binding (PTB) domain of Numb, a protein involved in asymmetric cell division, has recently been shown to bind to the adapter protein Lnx through an LDNPAY sequence, to the Numb-associated kinase (Nak) through a sequence that does not contain an NPXY motif and to GP(p)Y-containing peptides obtained from library screening. We show here that these diverse peptide sequences bind with comparable affinities to the Numb PTB domain at a common binding site on the surface of the protein. The NMR structure of the Numb PTB domain in complex with a GPpY-containing peptide reveals a novel mechanism of binding with the peptide in a helical turn that does not hydrogen bond to the PTB domain beta-sheet. These results suggest that PTB domains can potentially have multiple modes of peptide recognition and provide a structural basis from which the multiple functions of the Numb PTB domain during asymmetric cell division could arise.


    Related Citations: 
    • High-Affinity Binding of the Drosophila Numb Phosphotyrosine-Binding Domain to Pep Tides Containing a Gly-Pro-(P)Tyr Motif
      Li, S.-C.,Songyang, Z.,Vincent, S.J.F.,Zwahlen, C.,Wiley, S.,Cantley, L.,Kay, L.E.,Forman-Kay, J.D.,Pawson, T.
      (1997) Proc.Natl.Acad.Sci.USA 94: 7204


    Organizational Affiliation

    Samuel Lunenfeld Research Institute, Mount Sinai Hospital, Department of Molecular and Medical Genetics, University of Toronto, Ontario, Canada.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
PROTEIN (NUMB PROTEIN)
A
160Drosophila melanogasterMutation(s): 0 
Gene Names: numb
Find proteins for P16554 (Drosophila melanogaster)
Go to UniProtKB:  P16554
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
PROTEIN (GPPY PEPTIDE)
B
7N/AMutation(s): 0 
Protein Feature View is not available: No corresponding UniProt sequence found.
Small Molecules
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
PTR
Query on PTR
B
L-PEPTIDE LINKINGC9 H12 N O6 PTYR
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 200 
  • Conformers Submitted: 14 
  • Selection Criteria: NO NOE VIOLATION > 0.3 A 
  • Olderado: 2NMB Olderado

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1998-11-04
    Type: Initial release
  • Version 1.1: 2008-04-26
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance