期刊
BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS
卷 347, 期 4, 页码 904-908出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.bbrc.2006.06.182
关键词
Neisseria meningitidis; pilin; glycosylation; O-antigen ligase; pglL; wzy-dependent O-antigen biosynthesis
Pili (type IV fimbriae) of Neisseria meningitidis are glycosylated by the addition of O-linked sugars. Recent work has shown that PglF, a protein with homology to O-antigen 'flippases', is required for the biosynthesis of the pilin-linked glycan and suggests pilin glycosylation occurs in a manner analogous to the wzy-dependent addition of O-antigen to the core-LPS. O-Antigen ligases are crucial in this pathway for the transfer of undecraprenol-linked sugars to the LPS-core in Gram-negative bacteria. An O-antigen ligase homologue, pglL, was identified in N. meningitidis. PglL mutants showed no change in LPS phenotypes but did show loss of pilin glycosylation, confirming PglL is essential for pilin O-linked glycosylation in N. meningitidis. (c) 2006 Elsevier Inc. All rights reserved.
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