Part:BBa_K4197022

mSCARLET-I under control of ihfB800 promoter

Red fluorescent protein mScarlet-I expressed under control of the constitutive promoter of E. coli ihfB.

Introduction

This part is composed of the gene coding for the mScarlet-I (BBa_K2333414) red fluorescent protein, under control of the 800 first base pairs of the ihfB promoter (see BBa_K4197014. This promoter has been identified as a constitutive E. coli promoter (Weglenska et al., 1996). It was used for constitutive expression of fluorescent proteins in E. coli (Barthe et al., 2020) and appears as strong enough to permit sufficient expression of mScarlet-I without inclusion bodies.

Construction

The objective of the INSA-UPS 2022 team was to use the ihfB800 promoter to express mScarlet-I into E. coli Tuner (DE3) cells. The functionality of promoter and protein was confirmed as the mScarlet-I was successfully expressed (see BBa_K4197020 and BBa_K4197021).

References

More information about the project for which the part was created: DAISY (INSA-UPS 2022)

Other parts of fluorescent proteins with ihfB800:
- mRFP1
- mTagBFP

1. Wȩgleńska, A., Jacob, B., & Sirko, A. (1996). Transcriptional pattern of Escherichia coli ihfB (himD) gene expression. Gene, 181(1-2), 85–88. https://doi.org/10.1016/s0378-1119(96)00468-4
2. Barthe, M., Tchouanti, J., Gomes, P. H., Bideaux, C., Lestrade, D., Graham, C., Steyer, J.-P., Meleard, S., Harmand, J., Gorret, N., Cocaign-Bousquet, M., & Enjalbert, B. (2020). Availability of the Molecular Switch XylR Controls Phenotypic Heterogeneity and Lag Duration during Escherichia coli Adaptation from Glucose to Xylose. mBio, 11(6), Article e02938-20. https://doi.org/10.1128/mbio.02938-20

Sequence and Features

Assembly Compatibility:

• 10
  INCOMPATIBLE WITH RFC[10]

  Illegal EcoRI site found at 1520
  Illegal XbaI site found at 1505
  Illegal PstI site found at 213
  Illegal PstI site found at 224
  Illegal PstI site found at 342
  
• 12
  INCOMPATIBLE WITH RFC[12]

  Illegal EcoRI site found at 1520
  Illegal PstI site found at 213
  Illegal PstI site found at 224
  Illegal PstI site found at 342
  Illegal NotI site found at 1512
  
• 21
  INCOMPATIBLE WITH RFC[21]

  Illegal EcoRI site found at 1520
  
• 23
  INCOMPATIBLE WITH RFC[23]

  Illegal EcoRI site found at 1520
  Illegal XbaI site found at 1505
  Illegal PstI site found at 213
  Illegal PstI site found at 224
  Illegal PstI site found at 342
  
• 25
  INCOMPATIBLE WITH RFC[25]

  Illegal EcoRI site found at 1520
  Illegal XbaI site found at 1505
  Illegal PstI site found at 213
  Illegal PstI site found at 224
  Illegal PstI site found at 342
  Illegal AgeI site found at 329
  Illegal AgeI site found at 1475
  
• 1000
  COMPATIBLE WITH RFC[1000]