Types | DnaRegion
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Roles | Composite
engineered_region
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Sequences | BBa_K1891015_sequence (Version 1)
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Description
Poly-3-hydroxybutyrate, P(3HB), a kind of PHAs is synthesized by three enzymes. The A gene encodes for the 393 amino acids protein, 3-ketothiolase (PhaA). The B1 gene encodes for the 246 amino acids protein, acetoacetyl-CoA reductase (PhaB). The C1 gene encodes for the 589 amino acids protein, PHA Synthase (PhaC). These three enzymes can use Co-A as a substrate to produce P(3HB). IGEM team Tokyo Tech2012 designed and synthesized phaC1-A-B1gene sequence BBa_K934001, and expressed via constitutive promoter.
In order to make the production process more controllable, we added heat-sensitive promoter(BBa_K873002) to the upstream of phaC1-A-B1 gene sequence (BBa_K934001), constructing the heatshock inducible parts (BBa_1891015). Then we linked the newly synthesized part to the standard vector pSB1C3. The new plasmids can be used directly for heatshock induced expression in E.coli.
Notes
We used Spe I and Pst I to do dual digestion in PSB1C3 which contained HSP gene and recycled gene fragments in 2117bp, used Xbal I and Pst I to do dual digestion in PSB1C3 and recycled gene fragments in 4208bp.We use T4 ligase to link phaC1-A-B1 to the downstream of HSP promoter, then transform the vectors to Trans 5α for plasmid extraction.
Source
We get parts BBa_K934001 and BBa_K873002 from the kits sent by iGEM HQ