Recombinant Anti-ACE2 antibody [EPR4436] (ab108209)
![Western blot - Anti-ACE2 antibody [EPR4436] (ab108209)](https://www.abcam.com/ps/products/108/ab108209/Images/ab108209-448039-anti-ace2-antibody-epr4436-western-blot-hepg2-wt-hepg2-ace2-knockout-calu3-a549.jpg "Western blot - Anti-ACE2 antibody [EPR4436] (ab108209)")
Key features and details
- Produced recombinantly (animal-free) for high batch-to-batch consistency and long term security of supply
- Rabbit monoclonal [EPR4436] to ACE2
- Suitable for: WB, IP, IHC-P
- Knockout validated
- Reacts with: Human
Related conjugates and formulations
Overview
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Product name
Anti-ACE2 antibody [EPR4436]
See all ACE2 primary antibodies -
Description
Rabbit monoclonal [EPR4436] to ACE2 -
Host species
Rabbit -
Tested applications
Suitable for: WB, IP, IHC-Pmore details
Unsuitable for: Flow Cyt or ICC -
Species reactivity
Reacts with: Human
Does not react with: Mouse -
Immunogen
Synthetic peptide. This information is proprietary to Abcam and/or its suppliers.
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Positive control
- WB: Human testis, kidney and lung lysates; Human fetal kidney lysates; Calu-3, HepG2 and Caco-2 cell lysates. IHC-P: Human kidney and testis tissue. IP: Human testis tissue lysate.
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General notes
This product is a recombinant monoclonal antibody, which offers several advantages including:
- - High batch-to-batch consistency and reproducibility
- - Improved sensitivity and specificity
- - Long-term security of supply
- - Animal-free production
Our RabMAb® technology is a patented hybridoma-based technology for making rabbit monoclonal antibodies. For details on our patents, please refer to RabMAb® patents.
Mouse, Rat: We have preliminary internal testing data to indicate this antibody may not react with these species. Please contact us for more information.
Properties
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Form
Liquid -
Storage instructions
Shipped at 4°C. Store at +4°C short term (1-2 weeks). Upon delivery aliquot. Store at -20°C. Avoid freeze / thaw cycle. -
Storage buffer
pH: 7.20
Preservative: 0.05% Sodium azide
Constituents: 0.1% BSA, 40% Glycerol (glycerin, glycerine), 9.85% Tris glycine, 50% Tissue culture supernatant -
Concentration information loading... -
Purity
Protein A purified -
Clonality
Monoclonal -
Clone number
EPR4436 -
Isotype
IgG -
Research areas
Associated products
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Alternative Versions
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Isotype control
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KO cell lines
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KO cell lysates
Applications
The Abpromise guarantee
Our Abpromise guarantee covers the use of ab108209 in the following tested applications.
The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.
| Application | Abreviews | Notes |
|---|---|---|
| WB | (3) |
1/1000 - 1/10000. Predicted molecular weight: 92 kDa.
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| IP |
1/10 - 1/100.
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| IHC-P | (1) |
1/100 - 1/250. Perform heat mediated antigen retrieval before commencing with IHC staining protocol.
Heat up to 98°C, below boiling, and then let cool for 10-20 minutes. The use of an HRP/AP polymerized secondary antibody is recommended. |
| Notes |
|---|
|
WB
1/1000 - 1/10000. Predicted molecular weight: 92 kDa. |
|
IP
1/10 - 1/100. |
|
IHC-P
1/100 - 1/250. Perform heat mediated antigen retrieval before commencing with IHC staining protocol. Heat up to 98°C, below boiling, and then let cool for 10-20 minutes. The use of an HRP/AP polymerized secondary antibody is recommended. |
Target
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Function
Carboxypeptidase which converts angiotensin I to angiotensin 1-9, a peptide of unknown function, and angiotensin II to angiotensin 1-7, a vasodilator. Also able to hydrolyze apelin-13 and dynorphin-13 with high efficiency. May be an important regulator of heart function. In case of human coronaviruses SARS and HCoV-NL63 infections, serve as functional receptor for the spike glycoprotein of both coronaviruses. -
Tissue specificity
Expressed in endothelial cells from small and large arteries, and in arterial smooth muscle cells. Expressed in lung alveolar epithelial cells, enterocytes of the small intestine, Leydig cells and Sertoli cells (at protein level). Expressed in heart, kidney, testis, and gastrointestinal system. -
Sequence similarities
Belongs to the peptidase M2 family. -
Post-translational
modificationsN-glycosylation on Asn-90 may limit SARS infectivity. -
Cellular localization
Secreted and Cell membrane. - Information by UniProt
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Database links
- Entrez Gene: 59272 Human
- Omim: 300335 Human
- SwissProt: Q9BYF1 Human
- Unigene: 178098 Human
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Alternative names
- ACE 2 antibody
- ACE related carboxypeptidase antibody
- ACE-related carboxypeptidase antibody
see all
Images
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Western blot - Anti-ACE2 antibody [EPR4436] (ab108209)All lanes : Anti-ACE2 antibody [EPR4436] (ab108209) at 1/1000 dilution
Lane 1 : Wild-type HepG2 cell lysate
Lane 2 : ACE2 knockout HepG2 cell lysate
Lane 3 : Calu-3 cell lysate
Lane 4 : A549 cell lysate
Lysates/proteins at 30 µg per lane.
Performed under reducing conditions.
Predicted band size: 92 kDa
Observed band size: 130 kDa why is the actual band size different from the predicted?Lanes 1 - 4: Merged signal (red and green). Green - ab108209 observed at 130 kDa. Red - loading control ab8245 (Mouse anti-GAPDH antibody [6C5]) observed at 37kDa.
ab108209 was shown to react with ACE2 in wild-type HepG2 cells in western blot with loss of signal observed in ACE2 knockout cell line ab273733 (knockout cell lysate ab275495). Wild-type and ACE2 knockout HepG2 cell lysates were subjected to SDS-PAGE. Membranes were blocked in 3% milk in TBS-T (0.1% Tween®) before incubation with ab108209 and ab8245 (Mouse anti-GAPDH antibody [6C5]) overnight at 4°C at a 1 in 1000 dilution and a 1 in 20000 dilution respectively. Blots were incubated with Goat anti-Rabbit IgG H&L (IRDye® 800CW) preabsorbed (ab216773) and Goat anti-Mouse IgG H&L (IRDye® 680RD) preabsorbed (ab216776) secondary antibodies at 1 in 20000 dilution for 1 hour at room temperature before imaging.
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![Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-ACE2 antibody [EPR4436] (ab108209)](https://www.abcam.com/ps/products/108/ab108209/Images/ab108209-120713-anti-angiotensin-converting-enzyme-2-antibody-epr4436-immunohistochemistry.jpg)
Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-ACE2 antibody [EPR4436] (ab108209)Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) analysis of human kidney tissue labelling ACE2 with ab108209 at 1/100. Heat mediated antigen retrieval was performed before commencing with IHC staining protocol.
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![Western blot - Anti-ACE2 antibody [EPR4436] (ab108209)](https://www.abcam.com/ps/products/108/ab108209/Images/ab108209-449772-anti-ace2-antibody-epr4436-western-blot-wildtype-caco2-ace2-knockout-caco2-calu3-a549.jpg)
Western blot - Anti-ACE2 antibody [EPR4436] (ab108209)All lanes : Anti-ACE2 antibody [EPR4436] (ab108209) at 1/1000 dilution
Lane 1 : Wild-type Caco-2 cell lysate
Lane 2 : ACE2 knockout Caco-2 cell lysate
Lane 3 : Calu-3 cell lysate
Lane 4 : A549 cell lysate
Lysates/proteins at 30 µg per lane.
Performed under reducing conditions.
Predicted band size: 92 kDa
Observed band size: 125 kDa why is the actual band size different from the predicted?Lanes 1 - 4: Merged signal (red and green). Green - ab108209 observed at 125 kDa. Red - loading control ab8245 (Mouse anti-GAPDH antibody [6C5]) observed at 37kDa.
ab108209 was shown to react with ACE2 in Caco-2 wild-type cells in western blot with loss of signal observed in ACE2 knockout cell line ab273731 (knockout cell lysate ab275516). Wild-type and ACE2 knockout Caco-2 cell lysates were subjected to SDS-PAGE. Membranes were blocked in fluorescent western blot (TBS-based) blocking solution before incubation with ab108209 and ab8245 (Mouse anti-GAPDH antibody [6C5]) overnight at 4°C at a 1 in 1000 Dilution and a 1 in 20000 dilution respectively. Blots were incubated with Goat anti-Rabbit IgG H&L (IRDye® 800CW) preabsorbed (ab216773) and Goat anti-Mouse IgG H&L (IRDye® 680RD) preabsorbed (ab216776) secondary antibodies at 1 in 20000 dilution for 1 hour at room temperature before imaging.
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![Western blot - Anti-ACE2 antibody [EPR4436] (ab108209)](https://www.abcam.com/ps/products/108/ab108209/Images/ab108209-391730-anti-ace2-antibody-epr4436-western-blot-human-testis-human-kidney-human-lung-hepg2.jpg)
Western blot - Anti-ACE2 antibody [EPR4436] (ab108209)All lanes : Anti-ACE2 antibody [EPR4436] (ab108209) at 1/1000 dilution
Lane 1 : Human testis cell lysate
Lane 2 : Human kidney cell lysate
Lane 3 : Human lung cell lysate
Lane 4 : HepG2 cell lysate
Lane 5 : Caco-2 cell lysate
Lane 6 : A549 cell lysate (negative control)
Lysates/proteins at 20 µg per lane.
Performed under reducing conditions.
Predicted band size: 92 kDa
Observed band size: 120 kDa why is the actual band size different from the predicted?Lanes 1 - 6: Merged signal (red and green). Green - ab108209 observed at 120 kDa. Red - loading control, Mouse anti-Actin observed at 42kDa.
ab108209 was shown to react with ACE2 in western blot. Membranes were blocked in 3% milk in TBS-T (0.1% Tween®) before incubation with ab108209 and Mouse anti-Actin overnight at 4°C at a 1 in 1000 dilution and a 1 in 20000 dilution respectively. Blots were incubated with Goat anti-Rabbit IgG H&L (IRDye® 800CW) preabsorbed (ab216773) and Goat anti-Mouse IgG H&L (IRDye® 680RD) preabsorbed (ab216776) secondary antibodies at 1 in 20000 dilution for 1 hour at room temperature before imaging.
Absence of ACE2 expression in A549 cells aligns with previously reported mRNA and protein data (PMID 16282461; fig.2b and 2c).
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![Western blot - Anti-ACE2 antibody [EPR4436] (ab108209)](https://www.abcam.com/ps/products/108/ab108209/Images/ab108209-120714-anti-angiotensin-converting-enzyme-2-antibody-epr4436-western-blot.jpg)
Western blot - Anti-ACE2 antibody [EPR4436] (ab108209)All lanes : Anti-ACE2 antibody [EPR4436] (ab108209)
Lane 1 : Human fetal kidney lysate
Lane 2 : Human testis lysate
Lysates/proteins at 10 µg per lane.
Secondary
All lanes : HRP labelled goat anti-rabbit at 1/2000 dilution
Predicted band size: 92 kDa
Observed band size: 115 kDa why is the actual band size different from the predicted? -
![Immunoprecipitation - Anti-ACE2 antibody [EPR4436] (ab108209)](https://www.abcam.com/ps/products/108/ab108209/Images/ab108209-389605-anti-ace2-epr4436-immunoprecipitation.jpg)
Immunoprecipitation - Anti-ACE2 antibody [EPR4436] (ab108209)ab108209 Immunoprecipitating ACE2 in human testis tissue lysate. 0.35 mg of tissue lysate was incubated with 2 μg primary antibody (1/30). For western blotting a HRP-conjugated Veriblot for IP Detection Reagent (ab131366) (1/1000) was used to confirm successful immunoprecipitation.
Exposure time: 1 second.
Blocking buffer and concentration: 5% NFDM/TBST.
Diluting buffer and concentration: 5% NFDM /TBST.
All lanes : Anti-ACE2 antibody [EPR4436] (ab108209) at 1/500 dilution
Lane 1 : Human testis tissue lysate at 10 µg
Lane 2 : ab108209 + Human testis tissue lysate
Lane 3 : Rabbit monoclonal IgG (ab172730) instead of ab108209 in Human testis tissue lysate
Observed band size: 110 kDa why is the actual band size different from the predicted? -
![Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-ACE2 antibody [EPR4436] (ab108209)](https://www.abcam.com/ps/products/108/ab108209/Images/ab108209-120712-anti-angiotensin-converting-enzyme-2-antibody-epr4436-immunohistochemistry.jpg)
Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-ACE2 antibody [EPR4436] (ab108209)Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) analysis of human testis tissue labelling ACE2 with ab108209 at 1/100. Heat mediated antigen retrieval was performed before commencing with IHC staining protocol.
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![Anti-ACE2 antibody [EPR4436] (ab108209)](https://www.abcam.com/ps/products/108/ab108209/Images/ab108209-6-benefits-of-recombinant-antibodies.png)
Anti-ACE2 antibody [EPR4436] (ab108209)
Protocols
Datasheets and documents
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SDS download
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Datasheet download
References (9)
ab108209 has been referenced in 9 publications.
- Zhang Q et al. Angiotensin-converting Enzyme 2-containing Small Extracellular Vesicles and Exomeres Bind the Severe Acute Respiratory Syndrome Coronavirus 2 Spike Protein. Gastroenterology 160:958-961.e3 (2021). PubMed: 33022277
- Huang KY et al. Humanized COVID-19 decoy antibody effectively blocks viral entry and prevents SARS-CoV-2 infection. EMBO Mol Med 13:e12828 (2021). PubMed: 33159417
- Winstone H et al. The Polybasic Cleavage Site in SARS-CoV-2 Spike Modulates Viral Sensitivity to Type I Interferon and IFITM2. J Virol 95:N/A (2021). PubMed: 33563656
- Fu Y & Xiong S Tagged extracellular vesicles with the RBD of the viral spike protein for delivery of antiviral agents against SARS-COV-2 infection. J Control Release 335:584-595 (2021). PubMed: 34089793
- Rawle DJ et al. ACE2-lentiviral transduction enables mouse SARS-CoV-2 infection and mapping of receptor interactions. PLoS Pathog 17:e1009723 (2021). PubMed: 34214142
- Mao Y et al. The Adrenal Cortex, an Underestimated Site of SARS-CoV-2 Infection. Front Endocrinol (Lausanne) 11:593179 (2020). PubMed: 33488517
- Liang Y et al. Role of neutrophil chemoattractant CXCL5 in SARS-CoV-2 infection-induced lung inflammatory innate immune response in an in vivo hACE2 transfection mouse model. Zool Res 41:621-631 (2020). PubMed: 33045777
- Sun SH et al. A Mouse Model of SARS-CoV-2 Infection and Pathogenesis. Cell Host Microbe 28:124-133.e4 (2020). PubMed: 32485164
- Pellegrini L et al. SARS-CoV-2 Infects the Brain Choroid Plexus and Disrupts the Blood-CSF Barrier in Human Brain Organoids. Cell Stem Cell 27:951-961.e5 (2020). PubMed: 33113348