Thrombospondin: Difference between revisions

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<StructureSection load='' size='450' side='right' caption='Human TSP-1 Nterminal complex with Arixtra heparin (PDB code [[1za4]])' scene='74/748873/Cv/3'>
<StructureSection load='' size='350' side='right' caption='Human TSP-1 Nterminal complex with Arixtra heparin (PDB code [[1za4]])' scene='74/748873/Cv/3'>




== Function ==
== Function ==
Thrombospondin (TSP) are glycoproteins released in response to thrombin stimulation.  TSP is a transient component of extracellular matrix in developing tissues<ref>PMID:9304800</ref>.
'''Thrombospondin''' (TSP) are glycoproteins released in response to thrombin stimulation.  TSP is a transient component of extracellular matrix in developing tissues<ref>PMID:9304800</ref>.


== Relevance ==
== Relevance ==
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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 <scene name='74/748873/Cv/2'>arginine and lysine side chains of the N-terminal interact with the heparin sulfate groups</scene><ref>PMID:16407063</ref>.
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 <scene name='74/748873/Cv/4'>arginine and lysine side chains of the N-terminal interact with the heparin sulfate groups</scene><ref>PMID:16407063</ref>.


</StructureSection>
</StructureSection>
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*Thrombospondin-1
*Thrombospondin-1


**[[1ux6]] – hTSP-1 C-terminal (mutant) + Ca - human<br />
**[[1ux6]] – hTSP-1 C-terminal (mutant) 831-1170 + Ca - human<br />
**[[1lsl]], [[3r6b]] – hTSP-1 repeats 2-3<br />
**[[1lsl]], [[3r6b]] – hTSP-1 repeats 2-3 434-547<br />
**[[2ouh]], [[2ouj]], [[2es3]], [[1z78]], [[2erf]] – hTSP-1 N-terminal<br />
**[[1z78]], [[2erf]], [[2es3]], [[2ouh]], [[2ouj]] – hTSP-1 N-terminal 25-233<br />
**[[7yyk]] – hTSP-1 378-547<br />
**[[1za4]] – hTSP-1 N-terminal + heparin<br />
**[[1za4]] – hTSP-1 N-terminal + heparin<br />


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**[[1yo8]] – hTSP-2 C-terminal<br />
**[[1yo8]] – hTSP-2 C-terminal<br />
**[[2rhp]] – hTSP-2 signature domain (mutant)<br />
**[[2rhp]] – hTSP-2 signature domain (mutant)<br />
}}
}}
== References ==
== References ==
<references/>
<references/>
[[Category:Topic Page]]
[[Category:Topic Page]]

Latest revision as of 11:31, 19 August 2024


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 [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 19-August-2024

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