Human ACE/CD143 Alexa Fluor® 647-conjugated Antibody

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FAB929R-100UG
R&D Systems Antibodies
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Human ACE/CD143 Alexa Fluor® 647-conjugated Antibody Summary

Species Reactivity
Human
Specificity
Detects human ACE/CD143 in direct ELISAs. In direct ELISAs, no cross-reactivity with recombinant human ACE-2 is observed. Detects the surface expression of human ACE on full length ACE transfectants, but not on control transfectants by flow cytometry.
Source
Monoclonal Mouse IgG1 Clone # 171417
Immunogen
Mouse myeloma cell line NS0-derived recombinant human ACE/CD143
aa 30-1261
Formulation
Supplied 0.2 mg/mL in a saline solution containing BSA and Sodium Azide.
Label
Alexa Fluor 647 (Excitation= 650 nm, Emission= 668 nm)

Applications

Recommended Concentration
Sample
Flow Cytometry
0.25-1 µg/106 cells
Human mature dendritic cells

Please Note: Optimal dilutions should be determined by each laboratory for each application. General Protocols are available in the Technical Information section on our website.

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Preparation and Storage

Shipping
The product is shipped with polar packs. Upon receipt, store it immediately at the temperature recommended below.
Stability & Storage
Store the unopened product at 2 - 8 °C. Do not use past expiration date.

Background: ACE/CD143

ACE (also known as peptidyl-dipetidase A) is a zinc metallopeptidase important for blood pressure control and water and salt metabolism (2). It cleaves the C-terminal dipeptide from angiotensin I to produce the potent vasopressor octapeptide angiotensin II and inactivates bradykinin by the sequential removal of two C-terminal dipeptides. In addition to the two physiological substrates, ACE cleaves C-terminal dipeptides from various oligopeptides with a free C-terminus. Because of its location and specificity, ACE plays additional roles in immunity, reproduction and neuropeptide regulation. For example, ACE degrades Alzheimer amyloid beta -peptide (A beta ), retards A beta aggregation, deposition, fibril formation, and inhibits cytotoxicity (3).

ACE is a type I membrane protein and exists in two isoforms (2). Somatic ACE, found in endothelial, epithelial and neuronal cells, comprises two highly similar domains called N- and C-domains, each of which contains the HExxH consensus sequence for zinc binding. Germinal ACE, found exclusively in the testes, comprises a single catalytically active domain identical to the C-domain of somatic ACE except for an N-terminal 67 residue germinal ACE-specific sequence. Physiological functions of the two tissue-specific isozymes are not interchangeable (4). For example, sperm-specific expression of the germinal ACE, not the somatic ACE, in ACE knockout male mice restored fertility.

Soluble ACE is present in many biological fluids, such as serum, seminal fluid, amniotic fluid and cerebrospinal fluid (2). The soluble ACE is derived from the membrane forms by actions of secretases or sheddases. The identities of the secretases have not been revealed, although they belong to the family of zinc metallopeptidases (5, 6).

References
  1. Soubrier, et al. (1988) Proc. Natl. Acad. Sci. USA 85:9386.
  2. Corvol, P. and T.A. Williams (1998) in Handbook of Proteolytic Enzymes. Barrett, A.J. et al. (eds): San Diego, Academic Press, p. 1066.
  3. Hu, et al. (2001) J. Biol. Chem. 276:47863.
  4. Kessler, et al. (2000) J. Biol. Chem. 275:26259.
  5. Eyries, et al. (2001) J. Biol. Chem. 276:5525.
  6. Alfalah, et al. (2001) J. Biol. Chem. 276:21105.
Long Name
Angiotensin I Converting Enzyme
Entrez Gene IDs
1636 (Human); 11421 (Mouse)
Alternate Names
ACE; ACE1angiotensin converting enzyme, somatic isoform; angiotensin I converting enzyme (peptidyl-dipeptidase A) 1; carboxycathepsin; CD143 antigen; CD143; DCP; DCP1; DCP1angiotensin-converting enzyme; dipeptidyl carboxypeptidase 1; Dipeptidyl carboxypeptidase I; EC 3.2.1.-; EC 3.4.15.1; Kininase II; MGC26566; MVCD3; peptidase P; testicular ECA

Product Datasheets

FAQs

  1. Is ACE-1 the same as ACE?

    • Yes. ACE-1 is used as an alternative name, but not as commonly as ACE and CD143.

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