User:Anthony Davis/Sandbox1 IgE: Difference between revisions

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=Structure=
=Structure=
The FcεRI receptor is a tetrameric receptor complex consisting of one alpha, one beta, and two disulfide bridge connected gamma chains.[http://upload.wikimedia.org/wikipedia/commons/4/42/Fc%CE%B5RI_Receptor.jpg]. The alpha subunit is the one dedicated to the binding of IgE.
The FcεRI receptor is a tetrameric receptor complex consisting of one alpha, one beta, and two disulfide bridge connected gamma chains.[http://upload.wikimedia.org/wikipedia/commons/4/42/Fc%CE%B5RI_Receptor.jpg]. The alpha subunit is the one dedicated to the binding of IgE.
The structure of the FcϵRI alpha subunit is made up of two (Ig)domains <scene name='User:Anthony_Davis/Sandbox1_IgE/D2_d1/2'>D2 and D1</scene. The domains form a convex shape at the top of the receptor that is directly involved in binding IgE. Another feature of the FcϵRI alpha subunit is the <scene name='User:Anthony_Davis/Sandbox1_IgE/Fg_loop/1'>FG Loop</scene> which forms part of the binding site for IgE.
The structure of the FcϵRI alpha subunit is made up of two (Ig)domains <scene name='User:Anthony_Davis/Sandbox1_IgE/D2_d1/2'>D2 and D1</scene>. The domains form a convex shape at the top of the receptor that is directly involved in binding IgE. Another feature of the FcϵRI alpha subunit is the <scene name='User:Anthony_Davis/Sandbox1_IgE/Fg_loop/1'>FG Loop</scene> which forms part of the binding site for IgE.
The FcεRI residues that have been implicated in IgE binding include residues numbers <scene name='User:Anthony_Davis/Sandbox1_IgE/Ige_binding_residues/1'>115, 117, 118</scene>, and <scene name='User:Anthony_Davis/Sandbox1_IgE/Ige_binding_residues/3'>120,121,122 and 123</scene> in the D2 C strand , <scene name='User:Anthony_Davis/Sandbox1_IgE/Ige_binding_residue/1'>129 and 131</scene> in the C′-E loop , <scene name='User:Anthony_Davis/Sandbox1_IgE/Ige_binding_residues/5'>149 and 153</scene> the F strand, <scene name='User:Anthony_Davis/Sandbox1_IgE/Ige_binding_residues/6'>155</scene> in the FG loop, and  <scene name='User:Anthony_Davis/Sandbox1_IgE/Ige_binding_residues/7'>159</scene> in the G strand. In addition, residues 87 at the D1D2 interface and 128 in the C′-E loop are likely to be part of the IgE interaction site, since mutation of these residues influences receptor binding to IgE.
The FcεRI residues that have been implicated in IgE binding include residues numbers <scene name='User:Anthony_Davis/Sandbox1_IgE/Ige_binding_residues/1'>115, 117, 118</scene>, and <scene name='User:Anthony_Davis/Sandbox1_IgE/Ige_binding_residues/3'>120,121,122 and 123</scene> in the D2 C strand , <scene name='User:Anthony_Davis/Sandbox1_IgE/Ige_binding_residue/1'>129 and 131</scene> in the C′-E loop , <scene name='User:Anthony_Davis/Sandbox1_IgE/Ige_binding_residues/5'>149 and 153</scene> the F strand, <scene name='User:Anthony_Davis/Sandbox1_IgE/Ige_binding_residues/6'>155</scene> in the FG loop, and  <scene name='User:Anthony_Davis/Sandbox1_IgE/Ige_binding_residues/7'>159</scene> in the G strand. In addition, residues 87 at the D1D2 interface and 128 in the C′-E loop are likely to be part of the IgE interaction site, since mutation of these residues influences receptor binding to IgE.