Rtp and Tus DNA Binding
From Proteopedia
(Difference between revisions)
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Assymmetry of RTP in DNA-binding | Assymmetry of RTP in DNA-binding | ||
| - | + | <scene name='Rtp_and_Tus_DNA_Binding/Wingup/1'>Wing-up</scene>: Contacts upstream with rtp dimer bound to A-site | |
| - | + | <scene name='Rtp_and_Tus_DNA_Binding/Wingdown/1'>Wing-down</scene>: Contacts with phosphate backbone of downstream DNA | |
<scene name='Rtp_and_Tus_DNA_Binding/Overview/1'>Overview</scene> | <scene name='Rtp_and_Tus_DNA_Binding/Overview/1'>Overview</scene> | ||
Revision as of 03:18, 23 May 2011
Replication Termination Proteins
Rtp and Tus These polar fork bocking sites have been found in yeast, pea, frog and human genomes.
RTP
RTP is a DNA binding protein from Bacillus Subtilis that uses a helix-loop-helix binding motif. In solution it shows a symmetric structure typical of the winged helix loop helix family, with an unstructured end, first alpha helix , unstructured loop that is equivalent to the first beta sheet , helix loop helix structure (-), 2 beta sheets with a connecting loop that makes up the 'wing' structure and an additional long alpha helix involved in dimerisation .
Assymmetry of RTP in DNA-binding : Contacts upstream with rtp dimer bound to A-site : Contacts with phosphate backbone of downstream DNA
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