Sandbox20: Difference between revisions

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===The RTP Dimer===
===The RTP Dimer===
[[Image:RTP Dimerisation.jpg | thumb | upright=1.1| left| Interactions between α4 helices facilitates dimerisation of RTP on the Ter DNA site.]]  
[[Image:RTP Dimerisation.jpg | thumb | upright=1.1| left| Polar interactions between α4 helices facilitates RTP dimerisation.]]  


The structure of an RTP monomer bears greatest similarity to the "''classic winged-helix''" motif, in which 'wings' project from the loop between the final two β sheets of their compact αβααββ structure.<ref>PMID: 10679470</ref> The two major variations from this theme are the absence of a β1 sheet (the corresponding region is instead termed the β1 loop), and the presence of a fourth elongate α-helix at the C-terminus, which facilitates dimerisation. Each of these secondary structural elements are indicated in this <scene name='Sandbox20/2efw/8'>structure</scene>.
The structure of an RTP monomer bears greatest similarity to the "''classic winged-helix''" motif, in which 'wings' project from the loop between the final two β sheets of their compact αβααββ structure.<ref>PMID: 10679470</ref> The two major variations from this theme are the absence of a β1 sheet (the corresponding region is instead termed the β1 loop), and the presence of a fourth elongate α-helix at the C-terminus, which facilitates dimerisation. Each of these secondary structural elements are indicated in this <scene name='Sandbox20/2efw/8'>structure</scene>.