ACE‑2 in Human Kidney. ACE‑2 was detected in immersion fixed paraffin-embedded sections of human kidney using Human ACE‑2 Biotinylated Antigen Affinity-purified Polyclonal Antibody (Catalog # BAF933) at 15 µg/mL overnight at 4 °C. Tissue was stained using the Anti-Goat HRP-DAB Cell & Tissue Staining Kit (brown; Catalog # CTS008) and counterstained with hematoxylin (blue). View our protocol for Chromogenic IHC Staining of Paraffin-embedded Tissue Sections.
Preparation and Storage
Reconstitute at 0.2 mg/mL in sterile PBS.
The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below.
Stability & Storage
Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
12 months from date of receipt, -20 to -70 °C as supplied.
1 month, 2 to 8 °C under sterile conditions after reconstitution.
6 months, -20 to -70 °C under sterile conditions after reconstitution.
ACE-2, also called ACEH (ACE homolog), is an integral membrane protein and a zinc metalloprotease of the ACE family that also includes somatic and germinal ACE (1). Human ACE-2 has about 40% amino acid identity to the N- and C-terminal domains of human somatic ACE. The predicted human ACE-2 protein sequence consists of 805 amino acids, including a N-terminal signal peptide, a single catalytic domain, a C-terminal membrane anchor, and a short cytoplasmic tail. ACE-2 cleaves angiotensins I and II as a carboxypeptidase. ACE-2 mRNA is found at high levels in testis, kidney, and heart and at moderate levels in colon, small intestine, and ovary. Classical ACE inhibitors such as captopril and lisinopril do not inhibit ACE-2 activity. Novel peptide inhibitors of ACE-2 do not inhibit ACE activity (2). Genetic data from Drosophila, mice and rats show that ACE-2 is an essential regulator of heart function in vivo (3).
Tipnis, S.R. et al. (2000) J. Biol. Chem. 275:33238.
Crackower, M.A. et al. (2002) Nature 417:822.
Huang, L. et al. (2003) J. Biol. Chem. 278:15532.
Angiotensin I Converting Enzyme 2
Entrez Gene IDs:
59272 (Human); 70008 (Mouse); 302668 (Rat)
ACE2; ACE-2; ACEH; ACEHangiotensin I converting enzyme 2; ACE-related carboxypeptidase; angiotensin I converting enzyme (peptidyl-dipeptidase A) 2; angiotensin-converting enzyme 2; Angiotensin-converting enzyme homolog; DKFZp434A014; EC 3.4.17; EC 188.8.131.52; Metalloprotease MPROT15
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