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Structure and Function of Mycobacterial Arabinofuranosyltransferases

Yong Zi Tan1,2, Filippo Mancia3

  • 1Department of Biological Sciences, National University of Singapore, Singapore, Singapore. yztan@nus.edu.sg.

Sub-Cellular Biochemistry
|September 23, 2022
PubMed

Insights

Mycobacteria possess a unique cell envelope crucial for survival against threats like tuberculosis. Arabinofuranosyltransferases are key enzymes in building this protective barrier, making them vital targets for research.

Area of Science:

  • Microbiology
  • Biochemistry
  • Structural Biology

Background:

  • Mycobacteria, including those causing tuberculosis and leprosy, have a unique, quasi-impermeable cell envelope.
  • This cell envelope provides protection against environmental threats and antibiotics.
  • Arabinofuranosyltransferases are enzymes unique to Actinobacteria, essential for cell envelope synthesis.

Purpose of the Study:

  • To analyze the structures of mycobacterial arabinofuranosyltransferases.
  • To clarify the function of these critical enzymes.
  • To explore common themes within this enzyme family through recent research.

Main Methods:

  • Structural analysis of mycobacterial arabinofuranosyltransferases.
  • Functional characterization of the enzymes.
  • Comparative analysis of enzyme structures and functions.

Main Results:

  • Detailed structural insights into mycobacterial arabinofuranosyltransferases were obtained.
  • Enzyme functions critical for cell envelope biosynthesis were elucidated.
  • Common structural and functional themes across the arabinofuranosyltransferase family were identified.

Conclusions:

  • Arabinofuranosyltransferases are essential for mycobacterial cell envelope integrity.
  • Understanding their structure and function can reveal novel therapeutic targets.
  • Further research into these enzymes is crucial for combating mycobacterial infections.
Keywords:
Acyl carrier proteinArabinofuranosyltransferasesArabinogalactanArabinosyltransferasesCell wall biosynthesisCryo-EMCryogenic electron microscopyGlycosyltransferasesLipoarabinomannanMycobacteriumSugar transferTuberculosisX-ray crystallography

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