Difference between revisions of "Part:BBa K4719003"
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Bacterial cellulose-chitin polymer was achieved by increasing the production of UDP-N-acetylglucosamine (UDP-GlcNAc), which can be recognized as a viable substrate for cellulose synthase and incorporated in the bacterial cellulose polymer. We employed two strategies to produce this material. The first approach was to add N-acetylglucosamine into the growth medium [https://parts.igem.org/Part:BBa_K4719013 BBa_K4719013], and the second one was the production of N-acetylglucosamine by ''K. xylinus'' from simple sugars such as glucose, fructose, and saccharose in the growth medium [https://parts.igem.org/Part:BBa_K4719014 BBa_K4719014].  
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Bacterial cellulose-chitin polymer was achieved by increasing the production of UDP-N-acetylglucosamine (UDP-GlcNAc), which can be recognized as a viable substrate for cellulose synthase and incorporated in the bacterial cellulose polymer. We employed two strategies to produce this material. The first approach was to add N-acetylglucosamine into the growth medium [https://parts.igem.org/Part:BBa_K4719013 BBa_K4719013], and the second one was the production of N-acetylglucosamine by ''K. xylinus'' from other sugars such as glucose, fructose, and saccharose in the growth medium [https://parts.igem.org/Part:BBa_K4719014 BBa_K4719014].
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===Usage and Biology===
 
===Usage and Biology===

Revision as of 16:04, 19 September 2023


UAP1

Introduction

Vilnius Lithuania iGEM 2023 team's goal was to create a universal synthetic biology system in Komagataeibacter xylinus for in vivo bacterial cellulose polymer composition modification. Firstly, we chose to produce a cellulose-chitin polymer that would later be deacetylated, creating bacterial cellulose-chitosan. This polymer is an easily modifiable platform when compared to bacterial cellulose. The enhanced chemical reactivity of bacterial cellulose-chitosan polymer allows for specific functionalizations in the biomedicine field, such as scaffold design.

Bacterial cellulose-chitin polymer was achieved by increasing the production of UDP-N-acetylglucosamine (UDP-GlcNAc), which can be recognized as a viable substrate for cellulose synthase and incorporated in the bacterial cellulose polymer. We employed two strategies to produce this material. The first approach was to add N-acetylglucosamine into the growth medium BBa_K4719013, and the second one was the production of N-acetylglucosamine by K. xylinus from other sugars such as glucose, fructose, and saccharose in the growth medium BBa_K4719014.

Usage and Biology

UAP1 is UDP-GlcNAc pyrophosphorylase. The protein sequence is from Candida albicans. This protein is involved in UDP-GlcNAc synthesis by converting N-acetylglucosamine-6-phosphate into UDP-GlcNAc (1). The cellulose synthase can recognize both UDP-N-acetylglucosamine and UDP-glucose as substrates, resulting in the formation of bacterial cellulose-chitin polymer (2). This part is used in BBa_K4719013 and BBa_K4719014.


Sequence and Features


Assembly Compatibility:
  • 10
    INCOMPATIBLE WITH RFC[10]
    Illegal EcoRI site found at 573
    Illegal EcoRI site found at 735
    Illegal SpeI site found at 511
    Illegal SpeI site found at 1399
  • 12
    INCOMPATIBLE WITH RFC[12]
    Illegal EcoRI site found at 573
    Illegal EcoRI site found at 735
    Illegal SpeI site found at 511
    Illegal SpeI site found at 1399
  • 21
    INCOMPATIBLE WITH RFC[21]
    Illegal EcoRI site found at 573
    Illegal EcoRI site found at 735
  • 23
    INCOMPATIBLE WITH RFC[23]
    Illegal EcoRI site found at 573
    Illegal EcoRI site found at 735
    Illegal SpeI site found at 511
    Illegal SpeI site found at 1399
  • 25
    INCOMPATIBLE WITH RFC[25]
    Illegal EcoRI site found at 573
    Illegal EcoRI site found at 735
    Illegal SpeI site found at 511
    Illegal SpeI site found at 1399
  • 1000
    COMPATIBLE WITH RFC[1000]


References

1.Mio, T. et al. (1998a) ‘The Eukaryotic UDP-N-Acetylglucosamine Pyrophosphorylases’, Journal of Biological Chemistry, 273(23), pp. 14392–14397. doi:10.1074/jbc.273.23.14392.
2.Teh, M.Y. et al. (2019) ‘An expanded synthetic biology toolkit for gene expression control in acetobacteraceae’, ACS Synthetic Biology, 8(4), pp. 708–723. doi:10.1021/acssynbio.8b00168.