Difference between revisions of "Part:BBa K4012006"

Latest revision as of 13:29, 21 October 2021

pTDH3

it is a promotor that starts the sequence that is resposible for the production of Ginkgo biloba chalcone synthase

Sequence and Features

Obtaining the pTDH3 fragment and BsaI digested verification

Figure 1: [1] Results of yeast toolkit plasmids enzyme-digested verification

We construct pTDH3 with vector type8-pSB1K3-GFP and proceed digested verification using BsaI. According to Fig.1, we obtain two clear bands after BsaI digested, the length of the vector(1622bp) and the inserted fragments pTDH3(689bp) matched with previous expectations by compared with Marker MK8000 ladder, confirming the successful assembly of Toolkit plasmids and availability in subsequent construction.

pTDH3 in Level1 plasmid assembly

Figure 2: [2] A: the construction strategy; B: results of colony PCR; C: results of sequencing analysis of coding sequence AaDFR

The construction schematic of AaDFR sequence demonstrated as Fig .2. The initiation of the AaDFR sequence is done by promoter pTDH3, with termination done by tENO1. The sequence ConL3 and ConR4 are connector sequences within the Level 1 plasmid assembly. Furthermore, typr9-KVF and type9-VR are imposed to enact selection through colonies PCR, results shown in Fig.9 The band length 2300bp match with expectations. The sequence analysis results show no significant mutations or deletions, representing the success of the assembly.

pTDH3 in Level2 plasmid assembly

Figure 3: [3] A: The results of colony PCR of upstream transformant; B: The results of colony PCR of downstream transformant; C: Construction of catechin metabolic pathway; D：Construction of naringenin metabolic pathway

pTDH3 is also involved in assembly of synthesis pathway of catechin, shown by Fig.3.