Hae Joo Kang
Papers
1
Total Citations
111
H-Index
1
About
Hae Joo Kang is a structural biologist whose research illuminates the molecular architecture of bacterial surface proteins, with a focus on how Gram-positive pathogens assemble their pili. Her landmark 2009 study on *Streptococcus pyogenes* revealed that intramolecular isopeptide bonds within the major pilin protein confer extraordinary thermodynamic stability and proteolytic resistance—a critical adaptation for bacterial survival in hostile host environments. This work, cited over 110 times, provided the first structural evidence that these covalent bonds, formed spontaneously without enzymes, act as molecular "staples" reinforcing the pilus backbone. By solving the crystal structure of the major pilin, Kang demonstrated how sortase enzymes subsequently link these stabilized subunits into robust, linear polymers essential for adhesion and virulence. Her findings have reshaped understanding of Gram-positive pilus biogenesis, offering insights that inform vaccine design and anti-virulence therapies. Kang’s research elegantly bridges protein chemistry and microbiology, revealing nature’s ingenious use of autocatalytic bonds to create durable bacterial nanomachines.
Research Focus
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