Revision as of 18:49, 26 September 2012 by Darlisereno (Talk | contribs)

pFadBA Promter

PfadBA Promter


PfadBA promoter function


To evaluate the PfadBA promoter function, we design a Phs-mRFP reporter construct. In experimental group we add oleic acid in media and compared to control group, which is the same colony and identical amount of bacteria but without addition of oleic acid. After 5 hr induction we measure the man fluorescence intensity to get the expression level of Phs promoter in either group.


  1. 10 uL bacterial culture was cultured in 5 mL LB at 37℃, with suitable concentration of antibiotics shaking for 18 hr.
  2. For experimental group, 480 uL of bacteria culture was transferred to 1.5 mL eppendorf tube and added with 20 uL of oleic acid and IGEPAL(detergent) in. For control group, 500 uL bacterial culture was added in 1.5 mL eppendorf tube.
  3. The tubes were incubated at 37℃ 5 hr for induction.
  4. 100 uL of bacterial culture was transferred tino 96-well plate. The mRFP fluorescence intensity was measured (Excitaion: 580 nm, Emmision: 610 nm).



Oleic acid induction group shows higher expression of mRFP.