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Crystal Structure of the Burkholderia Lethal Factor 1 (BLF1)Crystal Structure of the Burkholderia Lethal Factor 1 (BLF1)
Structural highlights
FunctionPublication Abstract from PubMedThe structure of BPSL1549, a protein of unknown function from Burkholderia pseudomallei, reveals a similarity to Escherichia coli cytotoxic necrotizing factor 1. We found that BPSL1549 acted as a potent cytotoxin against eukaryotic cells and was lethal when administered to mice. Expression levels of bpsl1549 correlate with conditions expected to promote or suppress pathogenicity. BPSL1549 promotes deamidation of glutamine-339 of the translation initiation factor eIF4A, abolishing its helicase activity and inhibiting translation. We propose to name BPSL1549 Burkholderia lethal factor 1. A Burkholderia pseudomallei toxin inhibits helicase activity of translation factor eIF4A.,Cruz-Migoni A, Hautbergue GM, Artymiuk PJ, Baker PJ, Bokori-Brown M, Chang CT, Dickman MJ, Essex-Lopresti A, Harding SV, Mahadi NM, Marshall LE, Mobbs GW, Mohamed R, Nathan S, Ngugi SA, Ong C, Ooi WF, Partridge LJ, Phillips HL, Raih MF, Ruzheinikov S, Sarkar-Tyson M, Sedelnikova SE, Smither SJ, Tan P, Titball RW, Wilson SA, Rice DW Science. 2011 Nov 11;334(6057):821-4. PMID:22076380[1] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. References
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