View source for 1tpg


==F1-G MODULE PAIR RESIDUES 1-91 (C83S) OF TISSUE-TYPE PLASMINOGEN ACTIVATOR (T-PA) (NMR, 298K, PH2.95, REPRESENTATIVE STRUCTURE)==
<StructureSection load='1tpg' size='340' side='right'caption='[[1tpg]]' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[1tpg]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1TPG OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1TPG FirstGlance]. <br>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">Solution NMR, 1 model</td></tr>
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1tpg FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1tpg OCA], [https://pdbe.org/1tpg PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1tpg RCSB], [https://www.ebi.ac.uk/pdbsum/1tpg PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1tpg ProSAT]</span></td></tr>
</table>
== Disease ==
[https://www.uniprot.org/uniprot/TPA_HUMAN TPA_HUMAN] Note=Increased activity of TPA results in increased fibrinolysis of fibrin blood clots that is associated with excessive bleeding. Defective release of TPA results in hypofibrinolysis that can lead to thrombosis or embolism.
== Function ==
[https://www.uniprot.org/uniprot/TPA_HUMAN TPA_HUMAN] Converts the abundant, but inactive, zymogen plasminogen to plasmin by hydrolyzing a single Arg-Val bond in plasminogen. By controlling plasmin-mediated proteolysis, it plays an important role in tissue remodeling and degradation, in cell migration and many other physiopathological events. Plays a direct role in facilitating neuronal migration.
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
Check<jmol>
  <jmolCheckbox>
    <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/tp/1tpg_consurf.spt"</scriptWhenChecked>
    <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview03.spt</scriptWhenUnchecked>
    <text>to colour the structure by Evolutionary Conservation</text>
  </jmolCheckbox>
</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=1tpg ConSurf].
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== Publication Abstract from PubMed ==
BACKGROUND: The thrombolytic serine protease tissue-type plasminogen activator (t-PA) is a classical modular protein consisting of three types of domain in addition to the serine protease domain: F1 (homologous to fibronectin type I); G (epidermal growth factor-like) and kringle. Biochemical data suggest that the F1 and G modules play a major role in the binding of t-PA to fibrin and to receptors on hepatocytes. RESULTS: We have derived the solution structure of the F1 and G pair of modules from t-PA by two- and three-dimensional NMR techniques, in combination with dynamical simulated annealing calculations. We have also obtained information about the molecule's backbone dynamics through measurement of amide 15N relaxation parameters. CONCLUSIONS: Although the F1 and G modules each adopt their expected tertiary structure, the modules interact intimately to bury a hydrophobic core, and the inter-module linker makes up the third strand of the G module's major beta-sheet. The new structural results allow the interpretation of earlier mutational data relevant to fibrin-binding and hepatocyte-receptor binding.

The solution structure and backbone dynamics of the fibronectin type I and epidermal growth factor-like pair of modules of tissue-type plasminogen activator.,Smith BO, Downing AK, Driscoll PC, Dudgeon TJ, Campbell ID Structure. 1995 Aug 15;3(8):823-33. PMID:7582899<ref>PMID:7582899</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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==See Also==
*[[Plasminogen activator|Plasminogen activator]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Homo sapiens]]
[[Category: Large Structures]]
[[Category: Campbell ID]]
[[Category: Downing AK]]
[[Category: Driscoll PC]]
[[Category: Dudgeon TJ]]
[[Category: Smith BO]]