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Which luminometer is suited for performing the MycoAlert® Assay?

For performing the MycoAlert® Assay in theory every luminometer is suitable as long as a specific sensitivity is given. Please find attached our list with luminometers we know to be suited to run the MycoAlert® and MycoAlert® Plus Mycoplasma...

Are there positive controls for the MycoAlert® Assay?

The MycoAlert® Assay Control Set (LT07-518) is available separately and includes a lyophilized positive control (1 ml) and assay buffer (2 ml) for reconstitution. The assay buffer also serves as a negative control. The positive and negative controls...

Does the MycoAlert® Assay recognize the whole spectrum of mycoplasma?

The mycoplasma specific metabolism detected by the MycoAlert® Assay is present in all members of the mollicute family (Mycoplasma, Acholeplasma, Entomoplasma and Spiroplasma) except Ureaplasma (which are no usual suspects in cell culture). 95% of all...

My suspension-adapted HEK293 (or CHO) cells tend to clump in culture. How can I avoid this?

Efficient protein production experiments require growth of the host cell in single-cell suspension, something that is sometimes difficult to achieve since most established cell lines retain their adherent growth characteristics. Commercially...

Do bacteria lead to false positive MycoAlert® Results?

NO - the lysis reagent in the MycoAlert® Assay is not strong enough to lyse bacteria / yeast. Also, the enzymes utilized are not very common in bacteria or yeast – but are universal among the mollicute family. Bacterial contamination is...

Does the GFP sequence in the pmaxGFP control plasmid has a stop codon?

Yes. The coding sequence ends with a stop codon (TGA/UGA).

Can mycoplasma grow in the absence of cells?

There is evidence to suggest that mycoplasma can survive in the absence of cells, some may even proliferate, but as a rule they are much more viable if cells are present. 

Should any type of extracellular matrix be used when growing undifferentiated hMSC's (human Mesenchymal Stem Cells)?

That will depend on the type of medium used. If you are using our MSCGM™ BulletKit™ PT-3001, we do not recommend using a matrix with the cells as it might induce differentiation and make the cells difficult to detach from the culture vessel. If you...

How can I improve Human Hepatocyte viability post Nucleofection on the 96-well Shuttle device?

In addition to proper cell handling and using culture media optimized for long term culturing of hepatocytes (Lonza Basal medium supplemented with BulletKit), we recommend separating the healthy hepatocytes from the dead cells and debris in the...

Is it possible to store reconstituted MycoAlert®/MycoAlert® PLUS Reagent and Substrate?

For optimal assay conditions, reconstituted reagent and substrate should be used fresh within 2 hours after reconstitution.During this time they can be kept at room temperature.For the MycoAlert® Kit: Unused, reconstituted components can be aliquoted...
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