Immunoperoxidase localization of vessel dilator [Rabbit Anti-Atrial Natriuretic Peptide (ANP) (56-92)-Prepro (Human) Antibody, Cat.No. H-005-20]within the kidney demonstrating staining through out the kidney but of increased intensity of staining in the proximal tubules (T) of this normal rat kidney. Original magnification x60. Primary antibody diluted 1:800.