1fza: Difference between revisions

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==Overview==
==Overview==
In blood coagulation, units of the protein fibrinogen pack together to, form a fibrin clot, but a crystal structure for fibrinogen is needed to, understand how this is achieved. The structure of a core fragment, (fragment D) from human fibrinogen has now been determined to 2.9 A, resolution. The 86K three-chained structure consists of a coiled-coil, region and two homologous globular entitles oriented at approximately 130, degrees to each other. Additionally, the covalently bound dimer of, fragment D, known as 'double-D', was isolated from human fibrin, crystallized in the presence of a Gly-Pro-Arg-Pro-amide peptide ligand, which simulates the donor polymerization site, and its structure solved by, molecular replacement with the model of fragment D.
In blood coagulation, units of the protein fibrinogen pack together to form a fibrin clot, but a crystal structure for fibrinogen is needed to understand how this is achieved. The structure of a core fragment (fragment D) from human fibrinogen has now been determined to 2.9 A resolution. The 86K three-chained structure consists of a coiled-coil region and two homologous globular entitles oriented at approximately 130 degrees to each other. Additionally, the covalently bound dimer of fragment D, known as 'double-D', was isolated from human fibrin, crystallized in the presence of a Gly-Pro-Arg-Pro-amide peptide ligand, which simulates the donor polymerization site, and its structure solved by molecular replacement with the model of fragment D.


==Disease==
==Disease==
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[[Category: Homo sapiens]]
[[Category: Homo sapiens]]
[[Category: Protein complex]]
[[Category: Protein complex]]
[[Category: Doolittle, R.F.]]
[[Category: Doolittle, R F.]]
[[Category: Everse, S.J.]]
[[Category: Everse, S J.]]
[[Category: Spraggon, G.]]
[[Category: Spraggon, G.]]
[[Category: CA]]
[[Category: CA]]
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[[Category: platelet]]
[[Category: platelet]]


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