发明名称 |
Genetically encoded FRET-based MMP-9 activity biosensor and use thereof |
摘要 |
The present invention relates to a genetically encoded FRET-based biosensor to monitor the activity of matrix metalloproteinase 9 (MMP-9). MMP-9 is an extracellular acting endopeptidase implicated in both physiological and pathological processes. A genetically encoded FRET biosensor anchored in the cellular membrane allows studying the proteolytic activity of MMP-9 with high spatiotemporal resolution at the exact region of MMP-9 action on the cell. Applicability of the biosensor, both in vitro and in vivo in living cells, has been demonstrated by ratiometric analysis of cleavage of the biosensor by a purified auto-activating mutant of MMP-9. |
申请公布号 |
US2016194681(A1) |
申请公布日期 |
2016.07.07 |
申请号 |
US201414911821 |
申请日期 |
2014.08.12 |
申请人 |
INSTYTUT BIOLOGII DOSWIADCZALNEJ IM. MARCELEGO NENCKIEGO POLSKA AKADEMIA NAUK |
发明人 |
STAWARSKI Michal;WLODARCZYK Jakub;KACZMAREK Leszek |
分类号 |
C12Q1/37;C07K14/00 |
主分类号 |
C12Q1/37 |
代理机构 |
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代理人 |
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主权项 |
1. A genetically encoded MMP-9 activity biosensor that comprises a FRET donor fluorescent protein and two FRET acceptor fluorescent proteins all separated by flexible linkers, wherein the linker between the donor and acceptor proteins contains a MMP-9 cleavage site and the entire biosensor is anchored in the plasma membrane. |
地址 |
Warszsawa PL |