Table 1.

Primary antibodies.

Antibody	Species	Source	Cat#	Dilution
Anti-NBCn1	Rabbit	Abcam	ab82335	1:5,000 (WB), 1:50 (IF)
Anti-NBCn2	Rabbit	custom-made		1:20 (IF)
Anti-SLC26A4	Rabbit	Santa Cruz	sc-50346	1:2,000 (WB), 1:20 (IF)
Anti-SLC26A6	Goat	Abcam	ab156935	1:2,000 (WB), 1:20 (IF)