Table 1.

Antibodies used

Target	Supplier	Location	Catalog Number	Dilution
GS	Abcam	Cambridge, MA	ab73593	W: 1:1,500I: 1:20,000
NBCe1-A	Michael Romero, PhD	Mayo Clinic, Rochester, MN	Α-333	W: 1:1,000I: 1:20,000
Pan-NBCe1	ProteinTech	Rosemont, IL	11885-1-AP	W: 1:2,000I: 1:20,000
PDG	Norman Curthoys, PhD	Colorado State University	N/A	W: 1:3,000I: 1:10,000
PEPCK	Cayman Chemical	Ann Arbor, MI	10004943	W: 1:2,000I: 1:10,000

GS, glutamine synthetase; I, dilution used for immunohistochemistry; NBCe1, Na⁺-bicarbonate cotransporter, electrogenic, isoform 1; PDG, phosphate-dependent glutaminase; PEPCK, phosphoenolpyruvate carboxykinase; W, dilution used for Western blot analysis.