Difference between revisions of "Part:BBa K782006"

Revision as of 13:07, 25 September 2012

TALB:NLS DNA binding domain

TALB label represents TAL effector 1297 from zebrafish experiments (Sander et al., 2011).

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 binding sequence for TALB: tCTTCCGTTTCCACATCT

Characterization

TAL effector was obtained via AddGene from Joung's lab and cloned into a biobrick vector. This construct was later used for designing TAL-based activator and repressor by adding VP16 [1] and KRAB [2] domain.

References

Sander, J. D., Cade, L., Khayter, C., Reyon, D., Peterson, R. T., Joung, J. K., and Yeh, J.-R. J. (2011) Targeted gene disruption in somatic zebrafish cells using engineered TALENs. Nature Biotechnology 29, 697–698

Scholze, H., and Boch, J. (2011) TAL effectors are remote controls for gene activation. Curr. Opin. Microbiol. 14, 47-53.

Sequence and Features