2HBP

Solution Structure of Sla1 Homology Domain 1


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 200 
  • 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

Structure of Sla1p homology domain 1 and interaction with the NPFxD endocytic internalization motif.

Mahadev, R.K.Di Pietro, S.M.Olson, J.M.Piao, H.L.Payne, G.S.Overduin, M.

(2007) Embo J. 26: 1963-1971

  • DOI: 10.1038/sj.emboj.7601646

  • PubMed Abstract: 
  • Adaptor proteins play important endocytic roles including recognition of internalization signals in transmembrane cargo. Sla1p serves as the adaptor for uptake of transmembrane proteins containing the NPFxD internalization signal, and is essential fo ...

    Adaptor proteins play important endocytic roles including recognition of internalization signals in transmembrane cargo. Sla1p serves as the adaptor for uptake of transmembrane proteins containing the NPFxD internalization signal, and is essential for normal functioning of the actin cytoskeleton during endocytosis. The Sla1p homology domain 1 (SHD1) within Sla1p is responsible for recognition of the NPFxD signal. This study presents the NMR structure of the NPFxD-bound state of SHD1 and a model for the protein-ligand complex. The alpha+beta structure of the protein reveals an SH3-like topology with a solvent-exposed hydrophobic ligand binding site. NMR chemical shift perturbations and effects of structure-based mutations on ligand binding in vitro define residues that are key for NPFxD binding. Mutations that abolish ligand recognition in vitro also abolish NPFxD-mediated receptor internalization in vivo. Thus, SHD1 is a novel functional domain based on SH3-like topology, which employs a unique binding site to recognize the NPFxD endocytic internalization signal. Its distant relationship with the SH3 fold endows this superfamily with a new role in endocytosis.


    Organizational Affiliation

    CR-UK Institute for Cancer Studies, School of Medicine, University of Birmingham, Birmingham, UK.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Cytoskeleton assembly control protein SLA1
A
68Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Mutation(s): 0 
Gene Names: SLA1
Find proteins for P32790 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  P32790
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 200 
  • Conformers Submitted: 20 
  • Selection Criteria: structures with the lowest energy 
  • Olderado: 2HBP Olderado

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2007-04-10
    Type: Initial release
  • Version 1.1: 2008-05-01
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance