SLC39A9 and Zinc deficiency: zip3, zip4, zip6, zip7, zip9, zip10, zip11, zip13, znt1, znt2, znt4, znt5, znt6, znt8, znt9 and mtf-1 mRNA levels were not altered with zinc deficiency, arsenic exposure, nor any combination tested (S2 and S3 Figs).