Aptamers as detection molecules on reverse phase protein microarrays for the analysis of cell lysates
Aptamers as detection molecules on reverse phase protein microarrays for the analysis of cell lysates
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适体作为反相蛋白微阵列上的检测分子,用于分析细胞裂解物
DOI:
10.1002/elsc.201100100
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发表时间:
2012
影响因子:
2.7
通讯作者:
Thomas Scheper
中科院分区:
文献类型:
--
作者:
Miriam Lübbecke;Johanna-Gabriela Walter;Frank Stahl;Thomas Scheper
This study presents and discusses the application of Cy3‐labeled aptamers (where Cy3 is indocarbocyanine) directed against the his‐tag (where his is histidine) for the detection of his‐tagged proteins on microarrays in a so‐called reverse phase assay. These types of assays are widely used tools in protein microarray technology. Up to now antibodies are usually applied as detection molecules. Here, two different spotting techniques, contact and noncontact spotting, as well as different types of slides, aldehyde‐modified glass slides and nitrocellulose membrane coated slides, were examined and compared. Through this study, we validated the importance of a high protein‐binding capacity of the microarray, and the labeling position of the fluorophore within the aptamer. Purified his‐tagged PFEI (Pseudomonas fluorescenceesterase I) was used as a model system. Concentrations of PFEI‐his as low as 30 nM were detectable. These results demonstrate the applicability of aptamers as stable detection molecules in protein assays. Additionally, the reverse phase assay was found to be suitable for the detection of PFEI‐his in cell lysates. This might be of further interest in monitoring of protein production and purification processes.
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DOI:
--
发表时间:
2006
期刊:
Biotechnology progress (Print)
影响因子:
--
作者:
Öznur Kökpinar;D. Harkensee;C. Kasper;T. Scheper;R. Zeidler;O. Reif;R. Ulber
通讯作者:
R. Ulber
DOI:
--
发表时间:
2007
期刊:
Biotechnology progress (Print)
影响因子:
--
作者:
M. Reck;F. Stahl;J. Walter;M. Hollas;D. Melzner;T. Scheper
通讯作者:
T. Scheper
影响因子:
2.9
作者:
Hamaguchi, N;Ellington, A;Stanton, M
通讯作者:
Stanton, M
影响因子:
4.8
作者:
Collett, JR;Cho, EJ;Ellington, AD
通讯作者:
Ellington, AD
影响因子:
8.4
作者:
L. Yin;Chih;Cheng
通讯作者:
Cheng