A Sandwich-Injection Method for Microchip Electrophoresis Gang Li, Gui-Sheng Zhuang, Hai-Bin Zhu, Hui-Qing Jin and Jian-Long ZhaoWe present a sandwich-injection method for controlling discrete sample injection in µ-CE. This method involves four accessory arm channels in which symmetrical potentials are loaded to form a unique parallel electric field distribution to confine the spreading of sample plugs and prevent sample leakage. The virtues of the novel injection technique were demonstrated with numerical models and experiments. |  | |
Worm Annotation in UniProtKB/Swiss-Prot Duncan Legge and the UniProt ConsortiumUniProt (Universal Protein Resource) provides a central resource on protein sequences and functional annotation. The UniProt Consortium is comprised of the European Bioinformatics Institute (EBI), the Swiss Institute of Bioinformatics (SIB) and the Protein Information Resource (PIR). The UniProt Knowledgebase (UniProtKB) contains the manually annotated UniProtKB/Swiss-Prot section and the automatically annotated UniProtKB/TrEMBL section. |  | |
Worm Annotation in UniProtKB/Swiss-Prot Duncan Legge and the UniProt ConsortiumUniProt (Universal Protein Resource) provides a central resource on protein sequences and functional annotation. The UniProt Consortium is comprised of the European Bioinformatics Institute (EBI), the Swiss Institute of Bioinformatics (SIB) and the Protein Information Resource (PIR). The UniProt Knowledgebase (UniProtKB) contains the manually annotated UniProtKB/Swiss-Prot section and the automatically annotated UniProtKB/TrEMBL section. |  | |
Worm Annotation in UniProtKB/Swiss-Prot Duncan Legge and the UniProt ConsortiumUniProt (Universal Protein Resource) provides a central resource on protein sequences and functional annotation. The UniProt Consortium is comprised of the European Bioinformatics Institute (EBI), the Swiss Institute of Bioinformatics (SIB) and the Protein Information Resource (PIR). The UniProt Knowledgebase (UniProtKB) contains the manually annotated UniProtKB/Swiss-Prot section and the automatically annotated UniProtKB/TrEMBL section. |  | |
Large-scale Microarray Analysis of Protein and mRNA Level Changes in HL-60 Cells Pavel Simara, Irena Koutna, Stanislav Stejskal, Martina Peterkova, Petr Krontorad, Zdenek RuckaIn this study we compare methods for large-scale microarray analysis of protein and RNA level changes in HL-60 cells, responding to differentiation stimuli. Using microarrays we have found, that level of several proteins was either up- or down-regulated after cell differentiation. In some cases there was significant correlation with appropriate genes. |  | |
A Sensitive Fluorimetric Assay for Detection of ß-Secretase Activity Using a Novel FRET Peptide Substrate Xudong Zhu, Xing Han, Manpreet Mann, Rich Meyer, Xiaohe Tong, Anita Hong and Vera RakhmanovaIn order to facilitate high throughput screening of AD drug candidates, we have developed a new SensoLyte™ 520 b-secretase assay kit using a fluorescence resonance energy transfer (FRET) peptide, HiLyte Fluor™ 488-Glu-Val-Asn-Leu-Asp-Ala-Glu-Phe-Lys(QXL™ 520)-OH. The longer excitation and emission wavelengths of HiLyte Fluor™488 minimize the interference from autofluorescence and absorbance of test compounds. |  | |
Glycoprotein Labeling and Detection: Novel Click Chemistry-based Applications for gel Electrophoresis, Flow Cytometry and Fluorescence Microscopy Brian Agnew, Nancy Ahnert, Suzanne Buck, Scott Clarke, Courtenay Hart, Kapil Kumar, and Tamara NybergWe demonstrate highly-selective and sensitive labeling methods for the detection of specific glycoprotein subclasses, including cell surface N- and O-linked glycoproteins and intracellular O-GlcNAc modified proteins, utilizing the copper-catalyzed cycloaddition reaction between azides and alkynes, or click chemistry. |  | |
Development of a Lab-on-a-Chip for the Characterization of Human Cells Richter, L., Stepper, C., Mak, A., Brückl, H. and Ertl, P.Cell chips are developed to continuously monitor mammalian cell population dynamics in a non-invasive manner. In the presented work we describe the design, fabrication and characterization of a lab-on-a-chip for quantitative cell analysis. |  | |
Label-free Identification of Microorganisms using a Contact-less Dielectric Microsensor Ertl, P., Richter, L., Reinthaler, A., Stepper, C., Mak, A., Kast, M., Heer, R. and Brückl, H. Microfabricated biochips are developed to continuously monitor cell population dynamics in a non-invasive manner. In the presented work we describe the novel combination of contact-less dielectric microsensors and microfluidics to promote biofilm formation for quantitative cell analysis. |  | |
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