In a mouse intercross with more than 500 animals and gene expression microarray data on six tissues, we identified and corrected sample mix-ups involving 18% of the DNAs, along with a small number of mix-ups in each batch of expression arrays.
The process during which batches of compounds, expression libraries or RNA-interference libraries are tested for a defined activity on a certain target.
Other possible workflows that could be implemented in Taverna include cross-species comparisons of pathway information, or batch visualization of expression data.
With lysate from a better batch of protein expression there is a possibility that all of the sequences may demonstrate higher binding reactivity to tumor than normal sera.
Whereas expression of EWS-FLI-1 was tolerated in all of the cell batches tested, expression of EWS-ERG was restricted to a fraction of the batches while stable expression of FUS-ERG could not be achieved.
Microarray data were stored in the MO-MEX database Bloader, which enables direct submission of large batches of MIAME compliant expression profiling data to the ArrayExpress database.
Although the "different slide batch effect" is known also from DNA-chips, this would be clearly more critical using proteins derived from different batches of clone-cultivation, expression and purification.
2. Chen C, Grennan K, Badner J, Zhang D, Gershon E, Jin L, Liu C: Removing batch effects in analysis of expression microarray data: an evaluation of six batch adjustment methods.
In contrast, AtGL3 expression was highly variable and highest in expression in both leaf batches of K-5-8, whereAtGL3GL3 expression in glabrous O-3-7 leaves was intermediate between K-5-8 AtGL3+GL3+ B. napus leaves.
In batch cultures and in the batch phase of fed-batch cultures the expression of these three genes increased 1.6 to 2-fold between 18 to 45 h, while the biomass increased from approximately 3 to 20 g l-1 and pO2 decreased from 90 to 30%%.
