1ZL8

NMR structure of L27 heterodimer from C. elegans Lin-7 and H. sapiens Lin-2 scaffold proteins


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 10 
  • 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

A General Model for Preferential Hetero-oligomerization of LIN-2/7 Domains: Mechanism Underlying Directed Assembly of Supramolecular Signaling Complexes

Petrosky, K.Y.Ou, H.D.Lohr, F.Dotsch, V.Lim, W.A.

(2005) J.Biol.Chem. 280: 38528-38536

  • DOI: 10.1074/jbc.M506536200

  • PubMed Abstract: 
  • LIN-2/7 (L27) domains are protein interaction modules that preferentially hetero-oligomerize, a property critical for their function in directing specific assembly of supramolecular signaling complexes at synapses and other polarized cell-cell juncti ...

    LIN-2/7 (L27) domains are protein interaction modules that preferentially hetero-oligomerize, a property critical for their function in directing specific assembly of supramolecular signaling complexes at synapses and other polarized cell-cell junctions. We have solved the solution structure of the heterodimer composed of the L27 domains from LIN-2 and LIN-7. Comparison of this structure with other L27 domain structures has allowed us to formulate a general model for why most L27 domains form an obligate heterodimer complex. L27 domains can be divided in two types (A and B), with each heterodimer comprising an A/B pair. We have identified two keystone positions that play a central role in discrimination. The residues at these positions are energetically acceptable in the context of an A/B heterodimer, but would lead to packing defects or electrostatic repulsion in the context of A/A and B/B homodimers. As predicted by the model, mutations of keystone residues stabilize normally strongly disfavored homodimers. Thus, L27 domains are specifically optimized to avoid homodimeric interactions.


    Organizational Affiliation

    Biophysics Graduate Program, University of California, San Francisco, California 94143, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
LIN-7
A
53Caenorhabditis elegansMutation(s): 0 
Find proteins for P90976 (Caenorhabditis elegans)
Go to UniProtKB:  P90976
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Peripheral plasma membrane protein CASK
B
54Homo sapiensMutation(s): 0 
Gene Names: CASK (LIN2)
EC: 2.7.11.1
Find proteins for O14936 (Homo sapiens)
Go to Gene View: CASK
Go to UniProtKB:  O14936
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 10 
  • Selection Criteria: structures with the lowest energy 
  • Olderado: 1ZL8 Olderado

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2005-09-13
    Type: Initial release
  • Version 1.1: 2008-04-29
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance