1P23

STRUCTURE OF THE DIMERIZED CYTOPLASMIC DOMAIN OF P23 IN SOLUTION, NMR, 10 STRUCTURES


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 10 
  • Selection Criteria: ENERGY, AGREEMENT WITH EXPERIMENTAL DATA 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structure of the cytoplasmic domain of p23 in solution: implications for the formation of COPI vesicles.

Weidler, M.Reinhard, C.Friedrich, G.Wieland, F.T.Rosch, P.

(2000) Biochem.Biophys.Res.Commun. 271: 401-408

  • DOI: 10.1006/bbrc.2000.2511

  • PubMed Abstract: 
  • Coatomer, the coat protein complex of coat protein (COPI) vesicles, is involved in the budding of these vesicles. Its interaction with the cytoplasmic domains of some p24-family members, type I transmembrane proteins of the Golgi, has been shown to i ...

    Coatomer, the coat protein complex of coat protein (COPI) vesicles, is involved in the budding of these vesicles. Its interaction with the cytoplasmic domains of some p24-family members, type I transmembrane proteins of the Golgi, has been shown to induce a conformational change of coatomer that initiates polymerization of the complex. From stoichiometrical data it is likely that interaction of coatomer with the small tail domains involves an oligomeric form of the p24 proteins. Here we present the structure of peptide analogs of the cytoplasmic domain of p23, a member of the p24 family, as determined by two-dimensional nuclear magnetic resonance spectroscopy in the presence of 2,2,2-trifluoroethanol. An improved strategy for structure calculation revealed that the tail domain peptides form alpha-helices and adopt a tetrameric state. Based on these results we propose an initial model for the binding of coatomer by p23 and the induced conformational change of coatomer that results in its polymerization, curvature of the Golgi membrane to form a bud, and finally a COPI-coated vesicle.


    Organizational Affiliation

    Lehrstuhl für Biopolymere, Universität Bayreuth, Germany. mw@ibwf.uni-kl.de




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
TRANSMEMBRANE PROTEIN TMP21 PRECURSOR
A, B, C, D
14Oryctolagus cuniculusGene Names: TMED10 (TMP21)
Find proteins for Q28735 (Oryctolagus cuniculus)
Go to Gene View: TMED10
Go to UniProtKB:  Q28735
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 10 
  • Selection Criteria: ENERGY, AGREEMENT WITH EXPERIMENTAL DATA 
  • Olderado: 1P23 Olderado
Software Package:
Software NamePurpose
X-PLORmodel building
X-PLORrefinement
X-PLORphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2000-06-07
    Type: Initial release
  • Version 1.1: 2008-03-24
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance