Protein Microarray Chips - An Introduction. Introduction, Types of Protein Chips, Attachment, Protein and Antibody Chip Production, Applications of Protein Chips, Detection methods, and Future Directions.
Molecularstation. - [Read Protein and Antibody Microarray Chips - An Introduction]
Western Blot Home- http://www.molecularstation.com/protein/western-blot/
Western Blot Home. Information on western blotting, western blot procedure and methods, western blot books, stripping protocols. - [Read Western Blot Home]
Covers Many Western Blot Problems and Includes Many Solutions. Fuzzy Bands, Low or Weak Signal, High Background, Spots on Film, Too Many Bands. A MolecularStation Guide. - [Read Troubleshooting Western Blot]
Transient transfection into 293T cells is a convenient way to overexpress and obtain both cellular and extracellular (secreted or membrane) proteins. 293 is a human renal epithelial cell line which is transformed by adenovirus E1A gene product. 293T is a derivative which also express SV40 large T antigen, allowing episomal replication of plasmids containing the SV40 origin and early promoter region. They (both) have the unusual property of being highly transfectable. - [Read Transient Transfection Into 293T Cells Protocol]
Protocol optimized for Cos-1 cells. Successful transfection of each cell type requires optimization of the basic protocol. LIPOFECTAMINE method of transient transfection. Upstate. - [Read Transient Transfection of Cos-1 Cells]
This transient transfection protocol for the ecotropic/amphotropic producer line includes instructions for titering and concentration of viral stocks. This procedure gives consistently higher transfection efficiency. - [Read Transient Transfection: Viral Production]
TransWell Chemotaxis protocol. trans-well chemotaxis method from bioprotocol. The protocol is a method for studying migration towards a concentration gradient of chemoattractant of leukocytes (neutrophils, monocytes and lymphocytes) or other migratory cells. An upper chamber containing a suspension of cells is separated by a membrane from a lower chamber containing medium with chemoattractant. Chemotaxis of the cells from the upper chamber into the lower chamber can be quantified. - [Read TransWell Chemotaxis Protocol.]
Treatment of Cells with 5-aza-dC. protocol PDF- http://www.shmu.edu.cn/courses/2005aut/upload/20051116/Hongmei%20Xu%202003%20CANCER%20RESEARCH%20%20Aberrant%20Methylation%20and%20Silencing%20of%20ARHI,%20an%20Imprinted%20Tumor%20Suppressor%20Gene%20in%20which%20the%20Function%20Is%20Lost%20in%20Breast%
"Cells were seeded at a density of 1X106 cells/100-mm dish with 10% FBS and
allowed to attach over a 24-h period. 5-Aza-dC (Sigma) was then added to a
final concentration of 0.2–1 M, and the cells were allowed to grow for 5 days. The medium with or w - [Read Treatment of Cells with 5-aza-dC. protocol PDF]
Tricine–SDS-PAGE Protocol and background. Nature. PDF file. Tricine–SDS-PAGE is commonly used to separate proteins in the mass range 1–100 kDa. It is the preferred electrophoretic
system for the resolution of proteins smaller than 30 kDa. –SDS-PAGE is also used preferentially for doubled SDS-PAGE (dSDS-PAGE), a proteomic tool used to isolate
extremely hydrophobic proteins for mass spectrometric identification. - [Read Tricine–SDS-PAGE Protocol PDF]
Troubleshoot Immunoprecipitation. Chemicon. The most common challenge with immunoprecipitation is trying to lower the number and type of background proteins that contaminate the washed immune complexes. Suggestions for decreasing background in IP. - [Read Troubleshoot Immunoprecipitation]
Troubleshooting Guide for Chemiluminescent Western Blotting Pierce. High Background, Reverse image on film, Blot glows in the darkroom, Signal duration is less than 8 hours, Weak or no signal, Spots within the protein bands, non-specific bands. - [Read Troubleshooting Guide for Chemiluminescent Western Blotting Pierce]
A Single Stranded Plasmid DNA Isolation Protocol describing the production and isolation of single-stranded DNA (ssDNA) using bacteriophagemid-containing bacteria and helper phage. Infection of the host cells with helper phage allows for packaging of ssDNA into bacteriophage. The ssDNA can then be isolated from phage particles.
DNA microarrays are an ordered arrangement of DNA molecules complementary to genes of interest that are "spotted" by robotic equipment onto a glass slide substrate. The expression of genes in cells can be monitored with microarrays by preparing cDNA from the mRNA of cells of interest and measuring the hybridization to the microarray. This protocol describes the labeling of genomic DNA for use as a probe for hybridization to the cDNA spotted on the array.
Tubulin is polymerized into microtubules by incubating tubulin at 37°C with GTP. A nucleation seed is added when the purpose is to assay microtubule elongation. Tubulin can also be polymerized for the purposes of recycling the tubulin or labeling the microtubules with fluorescently labeled tubulin. Based on the protocol by Timothy Mitchison of Harvard University.
This Microarray Protocol Preparation of Fluorescent DNA Probes from Human mRNA protocol describes the production of probes labeled with the fluorescent dyes, Cy3 and Cy5, following the synthesis of cDNA from human mRNA and the hybridization of the probes to DNA microarrays.