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I've noticed that in mammalian cell culture, there are often two types of DMEM available. High Glucose and Low Glucose. Does it matter which type I use for culturing of cells (e.g. Hela or HEK293)? Which is the type people normally use?

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We typically use High Glucose as cells grow faster. One caveat is that there are concerns that certain protein modifications (specifically OGlnAc-ylation) may be upregulated in non-physiological (25mM or high glucose) media.

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