Fluorescence detection of hyaluronidase.
Fluorescence detection of hyaluronidase.
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DOI:
10.1016/j.jphotobiol.2011.06.003
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发表时间:
2011-09-02
影响因子:
5.4
通讯作者:
Gryczynski, Lgnacy
中科院分区:
文献类型:
--
作者:
Fudala, Rafal;Mummert, Mark E.;Gryczynski, Zygmunt;Gryczynski, Lgnacy
We labeled hyaluronan (HA) with two fluorophores, fluorescein amine and rhodamine B amine. These two fluorophores are suitable for a fluorescence (Foerster) resonance energy transfer (FRET) which results in a fluorescein quenching and an enhanced rhodamine emission. Such labeled HA (HA-FRET) is a potential sensor for HA degradation. We studied fluorescence properties of HA-FRET in the absence and presence of hyaluronidase enzyme (HA-ase). The time-resolved fluorescence measurements indicate more than 50% of FRET in the absence of HA-ase. In the presence of HA-ase FRET decreases with time, and relative fluorescence intensities of fluorescein and rhodamine shifts to fluorescein indicating a release of FRET. The kinetics of the digestion process of HA by HA-ase depends on the concentration of the enzyme. We demonstrate that simultaneous measurements of green and red emission of HA-FRET can be used in ratio metric detection of the HA-ase presence and activity. This in turn, can be utilized for the construction of a robust but reliable HA-ase sensing device.
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影响因子:
2.9
作者:
Zhang, Li-Shu;Mummert, Mark E.
通讯作者:
Mummert, Mark E.
DOI:
10.1073/pnas.93.15.7832
发表时间:
1996-07-23
影响因子:
11.1
作者:
Liu, DC;Pearlman, E;Sy, MS
通讯作者:
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作者:
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Tammi, M
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作者:
Tammi, R;Rilla, K;Tammi, M
通讯作者:
Tammi, M
影响因子:
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作者:
Godin, DA;Fitzpatrick, PC;Beckman, BS
通讯作者:
Beckman, BS