2KJX
Solution structure of the extracellular domain of JTB
Summary for 2KJX
| Entry DOI | 10.2210/pdb2kjx/pdb |
| Descriptor | Jumping translocation breakpoint protein (1 entity in total) |
| Functional Keywords | cysteine-rich domain, membrane, transmembrane, membrane protein |
| Biological source | Homo sapiens (human) |
| Cellular location | Membrane; Single-pass type I membrane protein (Potential): O76095 |
| Total number of polymer chains | 1 |
| Total formula weight | 7297.31 |
| Authors | Rousseau, F.,Lingel, A.,Pan, B.,Fairbrother, W.J.,Bazan, F. (deposition date: 2009-06-10, release date: 2010-08-11, Last modification date: 2024-10-30) |
| Primary citation | Rousseau, F.,Pan, B.,Fairbrother, W.J.,Bazan, J.F.,Lingel, A. The structure of the extracellular domain of the jumping translocation breakpoint protein reveals a variation of the midkine fold. J.Mol.Biol., 415:22-28, 2012 Cited by 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. 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. PubMed: 22079049DOI: 10.1016/j.jmb.2011.10.048 PDB entries with the same primary citation |
| Experimental method | SOLUTION NMR |
Structure validation
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