Difference between revisions of "Part:BBa K782007"
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[[Image:Svn_12_NicTAL10vs12.PNG | 600 px]] | [[Image:Svn_12_NicTAL10vs12.PNG | 600 px]] | ||
− | '''Figure 2:'''Sequence alignment of NicTAL10 and NicTAL12 showing differences between constructs. | + | '''Figure 2:''' Sequence alignment of NicTAL10 and NicTAL12 showing differences between constructs. |
− | Results obtained by testing [https://parts.igem.org/Part:BBa_K782011#Characterization NicTAL12:KRAB] repressor | + | Results obtained by testing [https://parts.igem.org/Part:BBa_K782011#Characterization NicTAL12:KRAB] repressor proved better binding ability since NicTAL12 gave much better results than NicTAL10 |
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+ | binds to its [https://parts.igem.org/wiki/index.php?title=Part:BBa_K782025 binding sites] better than . | ||
[[Image:Svn_12_NicTAL_graf.png]] | [[Image:Svn_12_NicTAL_graf.png]] |
Revision as of 10:01, 26 September 2012
NicTAL12:NLS DNA binding domain
Introduction
TAL effectors (TALEs) are bacterial plant pathogen transcription factors, that bind to DNA by specifically recognizing one base pair with a single tandem repeat in their DNA-binding domain. A tandem TALE repeat contains 33 to 35 amino acids, where the 12th and 13th amino acid, called a “repeat variable diresidue” (RVD), are responsible for specific interactions with the corresponding base pair (Scholze and Boch, 2011).
Figure 1: Schematic representation of the construct.
Single DNA binding sequence for NicTAL:TCTATCAATGATAGA
Characterization
We found out NicTAL part deposited in the Registry by the Slovenian iGEM2010 team was not functional. Part was missing subdomain in DNA-binding domain, so [http://2012.igem.org/Team:Slovenia our team] added the missing part on N terminal sequence. Apart from adding N terminal sequence, we added HIS tag on N terminal end and NLS on terminal C end of NicTAL12 (Figure 2). This construct was later used for designing TAL-based activator and repressor by adding VP16 and KRAB domain.
Figure 2: Sequence alignment of NicTAL10 and NicTAL12 showing differences between constructs.
Results obtained by testing NicTAL12:KRAB repressor proved better binding ability since NicTAL12 gave much better results than NicTAL10
binds to its binding sites better than .
Figure 3: Results of testing NicTAL:KRAB repressor demonstrated better binding ability of NicTAL12.
References
Scholze, H., and Boch, J. (2011) TAL effectors are remote controls for gene activation. Curr. Opin. Microbiol. 14, 47-53.
Sequence and Features
- 10COMPATIBLE WITH RFC[10]
- 12COMPATIBLE WITH RFC[12]
- 21INCOMPATIBLE WITH RFC[21]Illegal BamHI site found at 2133
Illegal XhoI site found at 1224 - 23COMPATIBLE WITH RFC[23]
- 25COMPATIBLE WITH RFC[25]
- 1000COMPATIBLE WITH RFC[1000]