Author: gbabnigg

Let me compare different transcription factor mechanisms: Common Examples of Repressor TFs: Regarding RhaR/RhaS (rhamnose system): Actually, the rhamnose system works differently – it’s an activator system. The rhamnose transcriptional regulation involves: This is fundamentally different from LldR because: The xylose sensing system in bacteria (particularly E. coli) involves XylR, which acts as both a […]

E. coli LldR, which belongs to the GntR family of transcriptional regulators, I’ll focus on relevant approaches: To reduce background signal in your L-lactate biosensor, here are targeted strategies: LldR (L-lactate responsive regulator) belongs to the GntR family and functions as a repressor. In the absence of L-lactate, LldR binds to its operator sequence and […]

Let me compare different transcription factor mechanisms: Common Examples of Repressor TFs: Regarding RhaR/RhaS (rhamnose system): Actually, the rhamnose system works differently – it’s an activator system. The rhamnose transcriptional regulation involves: This is fundamentally different from LldR because:

The xylose sensing system in bacteria (particularly E. coli) involves XylR, which acts as both a repressor and activator, making it a dual-function regulator: XylR’s Dual Function: This is different from: For biosensor design using XylR:

For xylose repression mechanism, here are the key considerations: b) XylR Expression:

With the molecular formula C17H28O3S1, and knowing it’s found in aspen root exudate, this could be jasmonyl sulfate or a related compound. Jasmonates are plant hormones, and their sulfated derivatives have been found in root exudates. However, I should note that while I can suggest this based on the formula and source, without access to […]