Phosphatidylinositides are one family of the most versatile signaling molecules in cells, yet how they interact with different proteins to regulate biological processes is not well understood. Towards a general strategy to identify phosphatidylinositide-protein interactions, a fluorous diazirine group has been incorporated into phosphatidylinositol 4,5-bisphosphate (PIP2). The modified PIP2 was effectively cleaved by phospholipase C, one signaling protein that utilizes PIP2 as its endogenous substrate. Upon light illumination, the PIP2 probe effectively crosslinks with small GTPase ADP-ribosylation 1 to form a complex, suggesting that the probe might be suitable to identify PIP2-interacting proteins on the proteome level.
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Univ Penn, Sch Med, Howard Hughes Med Inst, Cox Inst,Dept Med, Philadelphia, PA 19104 USAUniv Penn, Sch Med, Howard Hughes Med Inst, Cox Inst,Dept Med, Philadelphia, PA 19104 USA
Lawrence, JTR
Birnbaum, MJ
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Univ Penn, Sch Med, Howard Hughes Med Inst, Cox Inst,Dept Med, Philadelphia, PA 19104 USAUniv Penn, Sch Med, Howard Hughes Med Inst, Cox Inst,Dept Med, Philadelphia, PA 19104 USA
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Consorzio Mario Negri Sud, Dept Cell Biol & Oncol, Santa Maria Imbaro, Chieti, ItalyConsorzio Mario Negri Sud, Dept Cell Biol & Oncol, Santa Maria Imbaro, Chieti, Italy
Godi, A
Santone, I
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Consorzio Mario Negri Sud, Dept Cell Biol & Oncol, Santa Maria Imbaro, Chieti, ItalyConsorzio Mario Negri Sud, Dept Cell Biol & Oncol, Santa Maria Imbaro, Chieti, Italy
Santone, I
Pertile, P
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Consorzio Mario Negri Sud, Dept Cell Biol & Oncol, Santa Maria Imbaro, Chieti, ItalyConsorzio Mario Negri Sud, Dept Cell Biol & Oncol, Santa Maria Imbaro, Chieti, Italy
Pertile, P
Marra, P
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Consorzio Mario Negri Sud, Dept Cell Biol & Oncol, Santa Maria Imbaro, Chieti, ItalyConsorzio Mario Negri Sud, Dept Cell Biol & Oncol, Santa Maria Imbaro, Chieti, Italy
Marra, P
Di Tullio, G
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Consorzio Mario Negri Sud, Dept Cell Biol & Oncol, Santa Maria Imbaro, Chieti, ItalyConsorzio Mario Negri Sud, Dept Cell Biol & Oncol, Santa Maria Imbaro, Chieti, Italy
Di Tullio, G
Luini, A
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Consorzio Mario Negri Sud, Dept Cell Biol & Oncol, Santa Maria Imbaro, Chieti, ItalyConsorzio Mario Negri Sud, Dept Cell Biol & Oncol, Santa Maria Imbaro, Chieti, Italy
Luini, A
Corda, D
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Consorzio Mario Negri Sud, Dept Cell Biol & Oncol, Santa Maria Imbaro, Chieti, ItalyConsorzio Mario Negri Sud, Dept Cell Biol & Oncol, Santa Maria Imbaro, Chieti, Italy
Corda, D
De Matteis, MA
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Consorzio Mario Negri Sud, Dept Cell Biol & Oncol, Santa Maria Imbaro, Chieti, ItalyConsorzio Mario Negri Sud, Dept Cell Biol & Oncol, Santa Maria Imbaro, Chieti, Italy