Difference between revisions of "Part:BBa K4274009"

Revision as of 05:07, 12 October 2022

sfp

sfp gene is a biobrick part from B. amyloliquefaciens FZB42 encoding 4'-phosphopantetheinyl transferase which functions as a primer of nonribosomal peptide synthesis via phosphopantetheinylation of thiotemplates. However, compared to the sfp gene in Bacillus subtilis 168, they only had an amino acid homology of 70%. And the mutation existed in Bacillus subtilis 168 resulted in its unable to produce any lipopeptide biosurfactant. Hence, to allow B. subtilis to produce fengycins, it is essential to first knock-out the mutant gene and then knock-in the correct sfp (Part: BBa_K4274009) and degQ (Part: BBa_K4274010).

Usage and Biology

Our sfp gene (Gene ID: 45022253) is a biobrick part derived from B. amyloliquefaciens FZB42 encoding 4'-phosphopantetheinyl transferase. As mentioned above, the correct sfp gene is the core of lipopeptide biosurfactant production, thus the mutant sfp gene in B. subtilis is invalid.
To construct a strain of B. subtilis to produce fengycins, we will use sfp_target (gRNA) (part: BBa_K4274008) to target the region of mutant sfp in B. subtilis for knock-out, simultaneously sfp (Part: BBa_K4274009) and degQ (Part: BBa_K4274010) gene were knocked-in in situ. It was used in the composite part PvanP*-sfp_target-sfp_HA_US-p43-K4274013-sfp-K4274014-degQ-sfp_HA_DS (Part: BBa_K4274035) to realize fengycins’ production in B. subtilis.

Source

B. amyloliquefaciens FZB42

Sequence and Features

Sequence and Features

Functional Parameters