1HHN

Calreticulin P-domain


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Submitted: 20 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

NMR Structure of the Calreticulin P-Domain

Ellgaard, L.Riek, R.Herrmann, T.Braun, D.Guntert, P.Helenius, A.Wuthrich, K.

(2001) Proc Natl Acad Sci U S A 98: 3133

  • DOI: 10.1073/pnas.051630098
  • Primary Citation of Related Structures:  
    1HHN

  • PubMed Abstract: 
  • The NMR structure of the rat calreticulin P-domain, comprising residues 189-288, CRT(189-288), shows a hairpin fold that involves the entire polypeptide chain, has the two chain ends in close spatial proximity, and does not fold back on itself. This ...

    The NMR structure of the rat calreticulin P-domain, comprising residues 189-288, CRT(189-288), shows a hairpin fold that involves the entire polypeptide chain, has the two chain ends in close spatial proximity, and does not fold back on itself. This globally extended structure is stabilized by three antiparallel beta-sheets, with the beta-strands comprising the residues 189-192 and 276-279, 206-209 and 262-265, and 223-226 and 248-251, respectively. The hairpin loop of residues 227-247 and the two connecting regions between the beta-sheets contain a hydrophobic cluster, where each of the three clusters includes two highly conserved tryptophyl residues, one from each strand of the hairpin. The three beta-sheets and the three hydrophobic clusters form a repeating pattern of interactions across the hairpin that reflects the periodicity of the amino acid sequence, which consists of three 17-residue repeats followed by three 14-residue repeats. Within the global hairpin fold there are two well-ordered subdomains comprising the residues 219-258, and 189-209 and 262-284, respectively. These are separated by a poorly ordered linker region, so that the relative orientation of the two subdomains cannot be precisely described. The structure type observed for CRT(189-288) provides an additional basis for functional studies of the abundant endoplasmic reticulum chaperone calreticulin.


    Related Citations: 
    • Three-Dimensional Structure Topology of the Calreticulin P-Domain Based on NMR Assignment
      Ellgaard, L., Riek, R., Braun, D., Herrmann, T., Helenius, A., Wuthrich, K.
      (2000) FEBS Lett 488: 69

    Organizational Affiliation

    Institut für Biochemie, Eidgenössische Technische Hochschule, Universitätstrasse 16, CH-8092 Zurich, Switzerland.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
CALRETICULINA101Rattus norvegicusMutation(s): 0 
Gene Names: Calr
Find proteins for P18418 (Rattus norvegicus)
Explore P18418 
Go to UniProtKB:  P18418
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Submitted: 20 
  • OLDERADO: 1HHN Olderado

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2001-03-08
    Type: Initial release
  • Version 1.1: 2011-05-08
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance