1tpg: Difference between revisions

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New page: left|200px<br /> <applet load="1tpg" size="450" color="white" frame="true" align="right" spinBox="true" caption="1tpg" /> '''F1-G MODULE PAIR RESIDUES 1-91 (C83S) OF TI...
 
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[[Image:1tpg.gif|left|200px]]<br />
[[Image:1tpg.gif|left|200px]]<br /><applet load="1tpg" size="350" color="white" frame="true" align="right" spinBox="true"  
<applet load="1tpg" size="450" color="white" frame="true" align="right" spinBox="true"  
caption="1tpg" />
caption="1tpg" />
'''F1-G MODULE PAIR RESIDUES 1-91 (C83S) OF TISSUE-TYPE PLASMINOGEN ACTIVATOR (T-PA) (NMR, 298K, PH2.95, REPRESENTATIVE STRUCTURE)'''<br />
'''F1-G MODULE PAIR RESIDUES 1-91 (C83S) OF TISSUE-TYPE PLASMINOGEN ACTIVATOR (T-PA) (NMR, 298K, PH2.95, REPRESENTATIVE STRUCTURE)'''<br />


==Overview==
==Overview==
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.
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.


==Disease==
==Disease==
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==About this Structure==
==About this Structure==
1TPG is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Active as [http://en.wikipedia.org/wiki/T-plasminogen_activator T-plasminogen activator], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.4.21.68 3.4.21.68] Full crystallographic information is available from [http://ispc.weizmann.ac.il/oca-bin/ocashort?id=1TPG OCA].  
1TPG is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Active as [http://en.wikipedia.org/wiki/T-plasminogen_activator T-plasminogen activator], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.4.21.68 3.4.21.68] Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1TPG OCA].  


==Reference==
==Reference==
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[[Category: Single protein]]
[[Category: Single protein]]
[[Category: T-plasminogen activator]]
[[Category: T-plasminogen activator]]
[[Category: Campbell, I.D.]]
[[Category: Campbell, I D.]]
[[Category: Downing, A.K.]]
[[Category: Downing, A K.]]
[[Category: Driscoll, P.C.]]
[[Category: Driscoll, P C.]]
[[Category: Dudgeon, T.J.]]
[[Category: Dudgeon, T J.]]
[[Category: Smith, B.O.]]
[[Category: Smith, B O.]]
[[Category: plasminogen activation]]
[[Category: plasminogen activation]]


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