Thrombospondin: Difference between revisions

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<StructureSection load='1za4' size='340' side='right' caption='Caption for this structure' scene=''>
<StructureSection load='1za4' size='340' side='right' caption='Human TSP-1 Nterminal complex with Arixtra heparin (PDB code [[1za4]])' scene=''>




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== Structural highlights ==
== Structural highlights ==
 
The N-terminal of TSP-1 mediates its interaction with integrins during cell adhesion, with lipoproteinreceptor-related protein during uptake and clearance and with fibrinogen during platelet aggregation.  The arginine side chains of the N-terminal interact with the heparin sulfate groups<ref>PMID:16407063</ref>.


</StructureSection>
</StructureSection>

Revision as of 10:56, 21 December 2016


Function

Thrombospondin (TSP) are glycoproteins released in response to thrombin stimulation. TSP is a transient component of extracellular matrix in developing tissues[1].

Relevance

TSP-1 and TSP-2 are potent inhibitors of angiogenesis and thus are studied in cancer treatments[2].

Disease

TSP-2 mutation is associated with coronary artery disease[3].

Structural highlights

The N-terminal of TSP-1 mediates its interaction with integrins during cell adhesion, with lipoproteinreceptor-related protein during uptake and clearance and with fibrinogen during platelet aggregation. The arginine side chains of the N-terminal interact with the heparin sulfate groups[4].


Human TSP-1 Nterminal complex with Arixtra heparin (PDB code 1za4)

Drag the structure with the mouse to rotate

3D structures of thrombospondin3D structures of thrombospondin

Updated on 21-December-2016

ReferencesReferences

  1. Adams JC. Thrombospondin-1. Int J Biochem Cell Biol. 1997 Jun;29(6):861-5. PMID:9304800
  2. Lawler PR, Lawler J. Molecular basis for the regulation of angiogenesis by thrombospondin-1 and -2. Cold Spring Harb Perspect Med. 2012 May;2(5):a006627. doi:, 10.1101/cshperspect.a006627. PMID:22553494 doi:http://dx.doi.org/10.1101/cshperspect.a006627
  3. Carlson CB, Liu Y, Keck JL, Mosher DF. Influences of the N700S thrombospondin-1 polymorphism on protein structure and stability. J Biol Chem. 2008 Jul 18;283(29):20069-76. Epub 2008 May 22. PMID:18499674 doi:10.1074/jbc.M800223200
  4. Tan K, Duquette M, Liu JH, Zhang R, Joachimiak A, Wang JH, Lawler J. The structures of the thrombospondin-1 N-terminal domain and its complex with a synthetic pentameric heparin. Structure. 2006 Jan;14(1):33-42. PMID:16407063 doi:10.1016/j.str.2005.09.017

Proteopedia Page Contributors and Editors (what is this?)Proteopedia Page Contributors and Editors (what is this?)

Michal Harel, Alexander Berchansky, Joel L. Sussman