Sphingosine 1-phosphate lyase enzyme assay using a BODIPY-labeled substrate.
Sphingosine 1-phosphate lyase enzyme assay using a BODIPY-labeled substrate.
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DOI:
10.1016/j.bbrc.2009.01.106
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发表时间:
2009-03-06
影响因子:
3.1
通讯作者:
Saba, Julie D.
中科院分区:
文献类型:
--
作者:
Bandhuvula, Padmavathi;Li, Zaiguo;Bittman, Robert;Saba, Julie D.
Sphingosine 1-phosphate lyase (SPL) is responsible for the irreversible catabolism of sphingosine 1-phosphate, which signals through five membrane receptors to mediate cell stress responses, angiogenesis, and lymphocyte trafficking. The standard assay for SPL activity utilizes a radioactive dihydrosphingosine 1-phosphate substrate and is expensive and cumbersome. In this study, we describe an SPL assay that employs an ω-labeled BODIPY–sphingosine 1-phosphate substrate, allowing fluorescent product detection by HPLC and incorporating advantages of the BODIPY fluorophore. The major aldehyde product is confirmed by reaction with 2,4-dinitrophenylhydrazine. The SPL-catalyzed reaction is linear over a 30 min time period and yields a Km of 35 µM for BODIPY–sphingosine 1-phosphate.
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影响因子:
2.3
作者:
Marks, David L.;Bittman, Robert;Pagano, Richard E.
通讯作者:
Pagano, Richard E.
影响因子:
4.8
作者:
Tsegaye, Yoseph;Richardson, Christopher G.;Dunn, Teresa M.
通讯作者:
Dunn, Teresa M.
影响因子:
6.5
作者:
Darroch, PI;Dagan, A;Schuchman, EH
通讯作者:
Schuchman, EH
影响因子:
6.5
作者:
Bandhuvula, Padmavathi;Fyrst, Henrik;Saba, Julie D.
通讯作者:
Saba, Julie D.
影响因子:
64.8
作者:
Matloubian, M;Lo, CG;Cyster, JG
通讯作者:
Cyster, JG