2KJX

Solution structure of the extracellular domain of JTB


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 1.3 of the entry. See complete history


Literature

The structure of the extracellular domain of the jumping translocation breakpoint protein reveals a variation of the midkine fold.

Rousseau, F.Pan, B.Fairbrother, W.J.Bazan, J.F.Lingel, A.

(2012) J Mol Biol 415: 22-28

  • DOI: 10.1016/j.jmb.2011.10.048
  • Primary Citation of Related Structures:  
    2KJX

  • PubMed Abstract: 
  • Jumping Translocation Breakpoint (JTB) is an orphan receptor that is conserved from nematodes to humans and whose gene expression in humans is strikingly upregulated in diverse types of cancers. Translocations occur frequently at the hJTB genomic locus, leading to multiple copies of a truncated JTB gene, which potentially encodes a soluble secreted ectodomain ...

    Jumping Translocation Breakpoint (JTB) is an orphan receptor that is conserved from nematodes to humans and whose gene expression in humans is strikingly upregulated in diverse types of cancers. Translocations occur frequently at the hJTB genomic locus, leading to multiple copies of a truncated JTB gene, which potentially encodes a soluble secreted ectodomain. In addition, JTB and its orthologs likely represent a unique and ancient protein family since homologs could not be identified by direct sequence comparison. In the present study, we have determined the NMR solution structure of the N-terminal ectodomain of human JTB, showing that its fold architecture is a new variant of a three-β-strand antiparallel β-meander. The JTB structure has a distant relationship to the midkine/pleiotrophin fold, particularly in the conservation of distinctive disulfide bridge patterns. The structure of this newly characterized small cysteine-rich domain suggests potential involvement of JTB in interactions with proteins or extracellular matrix and may help to uncover the elusive biological functions of this protein.


    Organizational Affiliation

    Department of Early Discovery Biochemistry, South San Francisco, CA 94080, USA.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Jumping translocation breakpoint proteinA65Homo sapiensMutation(s): 0 
Gene Names: JTBHSPC222
Find proteins for O76095 (Homo sapiens)
Explore O76095 
Go to UniProtKB:  O76095
NIH Common Fund Data Resources
PHAROS:  O76095
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

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

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2010-08-11
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance
  • Version 1.2: 2011-11-23
    Changes: Database references
  • Version 1.3: 2012-04-18
    Changes: Database references