Figure 4From: An epitope tag alters phosphoglycerate dehydrogenase structure and impairs ability to support cell proliferation N-terminal epitope-tagged and untagged PHGDH display the same intracellular localization. (A) MDA-MB-231 cells, which are PHGDH low, and (B) PHGDH-amplified T.T. cells expressing either vector control, untagged, or N-terminally tagged PHGDH were stained for PHGDH immunofluorescence.Back to article page