This calcium phosphate transfection method works best in cell lines that are 1) highly transformed and 2) adherent (Hela, U2OS, SAOS2, AdAH, NPC-KT and obtain from 20% to 100% transfection efficiency depending
on the cell line). Works well for transient experiments but precautions should be used in the design and interpretation of experiments based on the discussion below. Also works
very well for generating stable cell lines. This method is quite sensitive to the amount of input plasmid. - [Read Calcium Phosphate Transfection Method]
The following protocol can be used for the development of stable cell lines expressing GFP fusion proteins. Although optimal transfection procedures (e.g., calcium phosphate, electroporation, or FuGENE 6 [Roche Applied Science]) vary depending on cell type, this general transfection procedure has been successful for stable transfection of HeLa, A-431, U2OS, BHK, and HT1080 cells. - [Read Constructing and Expressing GFP Fusion Proteins]
Culture of Human Prostatic Carcinoma Cell Lines,
Growing and splitting the cells, Preparation of frozen stocks in liquid nitrogen, How to bring frozen cells back into culture, Concentrations of antibiotics for the selection of stable transfectants. LNCa - [Read Culture of Human Prostatic Carcinoma Cell Lines]
Polybrene and DMSO can be used to achieve stable transformation of several types of cells by plasmid DNA. The yield of transformants is up to 15-fold greater with Polybrene than with calcium phosphate-DNA coprecipitation. However, there is no difference between the two methods in the efficiency of transformation of cells by high-molecular-weight DNA. - [Read DNA Transfection Using Polybrene Protocol]
Dose of G418 to be used for selection- http://invitrogen.custhelp.com/cgi-bin/invitrogen.cfg/php/enduser/std_adp.php?p_sid=rLTNWTng&p_lva=&p_faqid=80
CHO Lec3.2.8.1 cells have 4 independent mutations in the N and O glycosylation pathways. When cultured with alpha-glucosidase I inhibitor N-butyl-deoxynojirimycin, glycoproteins produced in CHO Lec3.2.8.1 cells are completely susceptible to Endo H digestion. Endo H cleaves chitobiose, leaving a single N-linked N-acetylglucosamine per site which is ideal for maintenance of protein solubility and special carb-protein interactions, such as between the first N-acetyl glucosamine residue and tryp. - [Read Establishment of Stable Transfectant of CHO Lec Cells Protocol]
PCR polymerase costs can be high. If you are willing to work, you can produce bacteria containing the clone. It appears to produce lots of Taq and is quite stable. The proceedure takes 4 days start to (15 000 units of Taq) finish. The Taq also appears ver - [Read Home-made Taq Polymerase Purification]
Protocol describes the direct detection of RNA on DNA microarrays using Hybrid Capture (HC) technology and the HC ExpressArray Kit developed by Diagene. The kit uses a proprietary antibody that binds specifically to RNA:DNA hybrids and a second, fluorescently labeled, antibody that detects the primary antibody. Total RNA is applied directly to a glass-spotted DNA microarray, and stable RNA:DNA hybrids are visualized via a Cy3-labeled secondary antibody. - [Read Hybridization and Detection Using the HC ExpressArray Kit Protocol]
Peptide Handling and Storage- http://www.sigmaaldrich.com/Brands/Sigma_Genosys/Custom_Peptides/Key_Resources/Handling___Storage.html
In general, peptide solutions are stable for up to a week at 4°C. However, if the peptide sequence has inherent instability (Peptide Stability), it might be better to freeze the solution when not in use. Peptide solutions at pH>8 should also be frozen when not in use. Sigma Aldrich. - [Read Peptide Handling and Storage]
Protocol uses an autoregulatory system in which the transcriptional trans-activator tTA drives its own expression and that of a target gene. The first stage of the procedure describes how to generate stable lines of NIH-3T3 cells that express either tTA alone or tTA and the tetracycline-regulated target gene. - [Read Tetracycline as Regulator of Inducible Gene Expression Protocol]
Protocol describes a method for transformation of the Tetrahymena using electroporation. The vector is electroporated into cells after mating, where it is incorporated into the DNA of developing macronuclei. Because T. thermophila can be propagated indefinitely without conjugation, transformation of the macronucleus provides a way to obtain stable somatic transformants. DNA vectors transformed using this protocol include those containing drug-resistant versions of Tetrahymena genes. - [Read Transformation of Tetrahymena thermophila by Electroporation Protocol]
Protocol describes a method for transformation of the Tetrahymenausing electroporation. The vector is electroporated into cellsafter mating, where it is incorporated into the DNA of developingmacronuclei. Because T. thermophila can be propagated indefinitelywithout conjugation, transformation of the macronucleus providesa way to obtain stable somatic transformants. - [Read Transformation of Tetrahymena thermophila by Electroporation Protocol]
3' Rapid Amplification of cDNA Ends RACE Using PCR Protocol. This protocol contains the steps for 3' end rapid amplification of mRNA by PCR. The first-strand cDNA is synthesized from total or poly(A+) RNA by priming from the poly-A tail of the mRNA using a oligo (dT) adaptor primer. The cDNA is then amplified via PCR using a gene-specific primer and an adaptor primer.
This protocol a protocol on how to generate transfected embryonic stem (ES) cell clones. The previous protocol in this series is the Protocol for Electroporation of ES cells. The next protocol in the series is the Protocol on Disaggregation, Expansion, and Freezing of Transfected ES Clones.