Recombinant Cynomolgus Monkey ACE-2 His-tag Protein, CF

Name: Recombinant Cynomolgus Monkey ACE-2 His-tag Protein, CF
Brand: R&D Systems
SKU: 10619-ZN

Catalog # 10619-ZN

Product Datasheet / COA / SDS

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Key Product Details

Source:	NS0
Accession #:	XP_005593094.1
Applications:	Bioactivity, Enzyme Activity

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Product Specifications

Source	Mouse myeloma cell line, NS0-derived cynomolgus monkey ACE-2 protein Gln18-Thr740 with a C-terminal 6-His tag
Purity	>95%, by SDS-PAGE visualized with Silver Staining and quantitative densitometry by Coomassie® Blue Staining.
Endotoxin level	<0.10 EU per 1 μg of the protein by the LAL method.
N-terminal sequence Analysis	Protein identity confirmed by mass spectrometry
Predicted Molecular Mass	85 kDa
SDS-PAGE	101-111 kDa, under reducing conditions
Activity	Measured by its binding ability in a functional ELISA with Recombinant SARS-CoV-2 Spike RBD Fc Chimera (Catalog # 10499-CV). Measured by its ability to cleave a fluorogenic peptide substrate, Mca-YVADAPK(Dnp)-OH (Catalog # ES007). The specific activity is >250 pmol/min/μg, as measured under the described conditions.

Recombinant Cynomolgus Monkey ACE-2 His-tag Protein, CF Scientific Data Examples

	Recombinant Cynomolgus Monkey ACE-2 His-tag Protein Enzyme Activity. Recombinant Cynomolgus Monkey ACE‑2 His-tag Protein (Catalog # 10619-ZN) is measured by its ability to cleave a fluorogenic peptide substrate, Mca-YVADAPK(Dnp)-OH (ES007).
	Recombinant Cynomolgus Monkey ACE-2 His-tag Protein Binding Activity. Recombinant Cynomolgus Monkey ACE-2 His-tag (Catalog # 10619-ZN) binds Recombinant SARS-CoV-2 Spike RBD Fc Chimera (10499-CV) in a functional ELISA.
	Recombinant Cynomolgus Monkey ACE-2 His-tag Protein SDS-PAGE. 2 μg/lane of Recombinant Cynomolgus Monkey ACE-2 His-tag Protein (Catalog #10619-ZN) was resolved with SDS-PAGE under reducing (R) and non-reducing (NR) conditions and visualized by Coomassie® Blue staining, showing bands at ~106 kDa under reducing conditions.

Formulation, Preparation and Storage

Carrier Free

What does CF mean?

CF stands for Carrier Free (CF). We typically add Bovine Serum Albumin (BSA) as a carrier protein to our recombinant proteins. Adding a carrier protein enhances protein stability, increases shelf-life, and allows the recombinant protein to be stored at a more dilute concentration. The carrier free version does not contain BSA.

What formulation is right for me?

In general, we advise purchasing the recombinant protein with BSA for use in cell or tissue culture, or as an ELISA standard. In contrast, the carrier free protein is recommended for applications, in which the presence of BSA could interfere.

10619-ZN

Formulation	Supplied as a 0.2 μm filtered solution in Tris, NaCl, ZnCl₂ and Glycerol.
Shipping	The product is shipped with polar packs. Upon receipt, store it immediately at the temperature recommended below.
Stability & Storage:	Use a manual defrost freezer and avoid repeated freeze-thaw cycles. 6 months from date of receipt, -20 to -70 °C as supplied. 3 months, -20 to -70 °C under sterile conditions after opening.

Reconstitution Calculator

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Background: ACE-2

Angiotensin I Converting Enzyme (ACE-2), also called ACEH (ACE homologue), is a dimeric, zinc-dependent metalloprotease of the ACE family that also includes somatic and germinal ACE (1, 2). ACE-2 mRNA is found at high levels in heart, testis, and kidney and at lower levels in a wide variety of tissues (1, 3). ACE-2 is the SARS-CoV and SARS-CoV2 Spike protein receptor in vivo (4-6), functions catalytically as a carboxypeptidase to cleave several substrates including angiotensins I and II, and acts as a partner for B⁰AT1-family amino acid transporters (1, 2). Through these functions, ACE-2 has been shown to be involved in several diseases including SARS, COVID19, acute lung injury (4, 7), heart disease (8), liver and lung fibrosis (9), inflammatory lung disease (10), and cardiopulmonary disease (11). Full length ACE-2 protein includes an extracellular region composed of a single N-terminal peptidase domain and C-terminal collectrin-like domain (CLD), a transmembrane domain, and a short cytoplasmic tail (12). The N-terminal peptidase region is required for binding to SARS-CoV and SARSCoV2 spike proteins, while the CLD contains a region that promotes dimerization and association with amino acid transporters (2). The peptidase domain contains a long deep cleft that undergoes a large hinge-bending movement at substrate and inhibitor binding (12). Classical ACE inhibitors such as captopril and lisinopril do not inhibit ACE-2 activity and inhibitors of ACE-2 do not inhibit ACE activity (13).

Item	Value
References	Kuba, K. et al. (2010) Pharmacol. Ther. 128:119. Yan, R. et al. (2020) Science 367:1444. Tipnis, S.R. et al. (2000) J. Biol. Chem. 275:33238. Kuba, K. et al. (2005) Nature Med. 11:875. Hoffmann, M. et al. (2020) Cell 181:271. Wrapp, D. et al. (2020) Science 367:1260. Imai, Y. et al. (2005) Nature 436:112. Huang, L. et al. (2003) J. Biol. Chem. 278:15532. Schrom, E. et al. (2017) Mol. Therapy Nuc. Acid 7:350. Jia, H. et al. (2016) Shock. 46:239. Cole-Jeffrey, C.T. et al. (2015) J. Cardiovasc. Pharmacol. 66:540. Towler, P. et al. (2004) J. Biol. Chem. 279:17996. Crackower, M.A. et al. (2002) Nature 417:822.
Long Name	Angiotensin I Converting Enzyme 2
Entrez Gene IDs	59272 (Human); 70008 (Mouse); 302668 (Rat); 100144303 (Porcine); 480847 (Canine); 418623 (Chicken); 102130864 (Cynomolgus Monkey); 554349 (Feline); 101673097 (Ferret); 101823817 (Hamster); 108390919 (Malayan Pangolin)
Alternate Names	ACE-2, ACE-related carboxypeptidase, ACE2, ACEH, ACEHangiotensin I converting enzyme 2, Angiotensin-converting enzyme homolog, DKFZp434A014, EC 3.4.17, EC 3.4.17.23, Metalloprotease MPROT15, angiotensin I converting enzyme (peptidyl-dipeptidase A) 2, angiotensin-converting enzyme 2

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