Difference between revisions of "Part:BBa K4387999"
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| − | The hemolysin A secretion machinery is a one-step secretion system (T1SS) that was originally isolated from uropathogenic E. coli strains. It is composed of 3 main peptides, the inner membrane proteins HlyB and HlyD, and the outer membrane protein TolC. Together, these 3 proteins build a continuous channel, through which originally the HlyA toxin is secreted in a one-step manner. Interestingly, the secretion signal is not found on the N-terminal site, instead it is found at the C-terminal end and the signal sequence is not removed during secretion. Scientists have identified the secretion signal and by fusing it to different proteins, were able to secrete various proteins with this secretion machinery. | + | The hemolysin A secretion machinery is a one-step secretion system (T1SS) that was originally isolated from uropathogenic E. coli strains. It is composed of 3 main peptides, the inner membrane proteins HlyB and HlyD, and the outer membrane protein TolC. Together, these 3 proteins build a continuous channel, through which originally the HlyA toxin is secreted in a one-step manner. Interestingly, the secretion signal is not found on the N-terminal site, instead it is found at the C-terminal end and the signal sequence is not removed during secretion. Scientists have identified the secretion signal and by fusing it to different proteins, were able to secrete various proteins with this secretion machinery. [1] |
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Revision as of 15:52, 2 October 2022
HlyB of the hemolysin A one-step secretion system
The hemolysin A secretion machinery is a one-step secretion system (T1SS) that was originally isolated from uropathogenic E. coli strains. It is composed of 3 main peptides, the inner membrane proteins HlyB and HlyD, and the outer membrane protein TolC. Together, these 3 proteins build a continuous channel, through which originally the HlyA toxin is secreted in a one-step manner. Interestingly, the secretion signal is not found on the N-terminal site, instead it is found at the C-terminal end and the signal sequence is not removed during secretion. Scientists have identified the secretion signal and by fusing it to different proteins, were able to secrete various proteins with this secretion machinery. [1]
Sequence and Features
- 10COMPATIBLE WITH RFC[10]
- 12COMPATIBLE WITH RFC[12]
- 21COMPATIBLE WITH RFC[21]
- 23COMPATIBLE WITH RFC[23]
- 25INCOMPATIBLE WITH RFC[25]Illegal NgoMIV site found at 1096
Illegal AgeI site found at 1266 - 1000COMPATIBLE WITH RFC[1000]