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AB223542

Anti-AACT antibody [EPR17088-68] - BSA and Azide free

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(1 Publication)

Rabbit Recombinant Monoclonal AACT antibody. Carrier free. Suitable for IP, WB, ICC/IF, IHC-P and reacts with Human samples. Cited in 1 publication.

View Alternative Names

AACT, GIG24, GIG25, SERPINA3, Alpha-1-antichymotrypsin, ACT, Cell growth-inhibiting gene 24/25 protein, Serpin A3

3 Images
Immunocytochemistry/ Immunofluorescence - Anti-AACT antibody [EPR17088-68] - BSA and Azide free (AB223542)
  • ICC/IF

Supplier Data

Immunocytochemistry/ Immunofluorescence - Anti-AACT antibody [EPR17088-68] - BSA and Azide free (AB223542)

Immunofluorescent analysis of 4% paraformaldehyde-fixed, 0.1% Triton X-100 permeabilized Raji (Human Burkitt's lymphoma cell line) cells labeling AACT with ab205198 at 1/50 dilution, followed by Goat anti-rabbit IgG (Alexa Fluor® 488) (ab150077) secondary antibody at 1/1000 dilution (green). Confocal image showing cytoplasmic and weak nuclear staining on Raji cell line.

The nuclear counter stain is DAPI (blue). Tubulin is detected with ab7291 (anti-Tubulin mouse mAb) at 1/1000 dilution and ab150120 (Alexa Fluor® 594 Goat anti-Mouse secondary) at 1/1000 dilution (red).

The negative controls are as follows :
-ve control 1 : ab205198 at 1/50 dilution followed by ab150120 (Alexa Fluor® 594 Goat anti-Mouse secondary) at 1/1000 dilution.
-ve control 2 : ab7291 (anti-Tubulin mouse mAb) at 1/1000 dilution followed by ab150077 (Alexa Fluor® 488 Goat Anti-Rabbit IgG H&L) at 1/1000 dilution.

This data was developed using the same antibody clone in a different buffer formulation containing PBS, BSA, glycerol, and sodium azide (ab205198).

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-AACT antibody [EPR17088-68] - BSA and Azide free (AB223542)
  • IHC-P

Supplier Data

Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-AACT antibody [EPR17088-68] - BSA and Azide free (AB223542)

This IHC data was generated using the same anti-AACT antibody clone [EPR17088-68] in a different buffer formulation (cat# ab205198).

Immunohistochemical analysis of paraffin-embedded human tonsil tissue labeling AACT with ab205198 at 1/2000 dilution, followed by Goat Anti-Rabbit IgG H&L (HRP) (ab205198) at 1/500 dilution. Cytoplasmic staining on human tonsil tissue is observed. Counter stained with Hematoxylin.

Secondary antibody only control : Used PBS instead of primary antibody, secondary antibody is Goat Anti-Rabbit IgG H&L (HRP) (ab97051) at 1/500 dilution.

Perform heat mediated antigen retrieval with Tris/EDTA buffer pH 9.0 before commencing with IHC staining protocol.

Immunoprecipitation - Anti-AACT antibody [EPR17088-68] - BSA and Azide free (AB223542)
  • IP

Supplier Data

Immunoprecipitation - Anti-AACT antibody [EPR17088-68] - BSA and Azide free (AB223542)

AACT was immunoprecipitated from 1 mg of Human plasma lysate with ab205198 at 1/40 dilution. Western blot was performed from the immunoprecipitate using ab205198 at 1/1000 dilution. Anti-Rabbit IgG (HRP), specific to the non-reduced form of IgG was used as secondary antibody at 1/1500 dilution.

Lane 1 : Human plasma lysate, 10 μg (Input).

Lane 2 : ab205198 IP in Human plasma lysate.

Lane 3 : Rabbit monoclonal IgG (ab172730) instead of ab205198 in Human plasma lysate.

Blocking and dilution buffer and concentration : 5% NFDM/TBST.

Exposure time : 30 seconds.

This data was developed using the same antibody clone in a different buffer formulation containing PBS, BSA, glycerol, and sodium azide (ab205198).

All lanes:

Immunoprecipitation - Anti-AACT antibody [EPR17088-68] (<a href='/en-us/products/primary-antibodies/aact-antibody-epr17088-68-ab205198'>ab205198</a>)

Predicted band size: 47 kDa

false

Key facts

Host species

Rabbit

Clonality

Monoclonal

Clone number

EPR17088-68

Isotype

IgG

Carrier free

Yes

Reacts with

Human

Applications

IP, ICC/IF, WB, IHC-P

applications

Immunogen

The exact immunogen used to generate this antibody is proprietary information.

Reactivity data

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Product details

ab223542 is the carrier-free version of ab205198.

Patented technology
Our RabMAb® technology is a patented hybridoma-based technology for making rabbit monoclonal antibodies. For details on our patents, please refer to RabMAb® patents.

Conjugation ready
Our carrier-free antibodies are typically supplied in a PBS-only formulation, purified and free of BSA, sodium azide and glycerol. This conjugation-ready format is designed for use with fluorochromes, metal isotopes, oligonucleotides, and enzymes, which makes them ideal for antibody labelling, functional and cell-based assays, flow-based assays (e.g. mass cytometry) and Multiplex Imaging applications.

Use our conjugation kits for antibody conjugates that are ready-to-use in as little as 20 minutes with 1 minute hands-on-time and 100% antibody recovery: available for fluorescent dyes, HRP, biotin and gold.

Compatibility
This product is compatible with the Maxpar® Antibody Labeling Kit from Fluidigm, without the need for antibody preparation. Maxpar® is a trademark of Fluidigm Canada Inc.

Properties and storage information

Form
Liquid
Purification technique
Affinity purification Protein A
Storage buffer
pH: 7.2 - 7.4 Constituents: PBS
Shipped at conditions
Blue Ice
Appropriate short-term storage conditions
+4°C
Appropriate long-term storage conditions
+4°C
Storage information
Do Not Freeze

Supplementary information

This supplementary information is collated from multiple sources and compiled automatically.

The target protein Alpha-1-antichymotrypsin (AACT) also known as ACT is a serpin family member with a mass of approximately 68 kDa. This protein functions as an inhibitor of serine proteases particularly targeting chymotrypsin-like enzymes. AACT is expressed in the liver and secreted into the plasma where it carries out its inhibitory role. It is a significant component of the antiprotease shield in human physiology guarding tissues against proteolytic damage.
Biological function summary

Alpha-1-antichymotrypsin plays a role in regulating protease activity to maintain tissue integrity. AACT forms part of a complex that involves other protease inhibitors and enzymes contributing to the balance of protein breakdown and regeneration. Its presence in the extracellular matrix highlights its structural and protective functions supporting cells against enzyme-mediated degradation.

Pathways

Alpha-1-antichymotrypsin takes part in inflammatory and immune response pathways. It interacts within the acute phase response pathway a system activated during inflammatory events. This protein's relationship with other protease inhibitors such as alpha-1-antitrypsin accentuates its role in controlling proteolytic enzymes that could otherwise propagate unchecked inflammation and tissue damage.

Alpha-1-antichymotrypsin associates with neurodegenerative diseases such as Alzheimer's disease and pulmonary disorders. Its elevated levels have been observed in Alzheimer's disease cases where it might participate alongside amyloid-beta precursor protein influencing amyloid plaque formation. In lung-related disorders its collaboration with proteins like elastase can affect tissue breakdown emphasizing its role in maintaining pulmonary health.

Product protocols

For this product, it's our understanding that no specific protocols are required. You can visit:

Target data

Although its physiological function is unclear, it can inhibit neutrophil cathepsin G and mast cell chymase, both of which can convert angiotensin-1 to the active angiotensin-2.
See full target information SERPINA3

Publications (1)

Recent publications for all applications. Explore the full list and refine your search

Nature genetics 57:1213-1227 PubMed40259083

2025

Multi-omic and spatial analysis of mouse kidneys highlights sex-specific differences in gene regulation across the lifespan.

Applications

Unspecified application

Species

Unspecified reactive species

Siqi Chen,Ruiyang Liu,Chia-Kuei Mo,Michael C Wendl,Andrew Houston,Preet Lal,Yanyan Zhao,Wagma Caravan,Andrew T Shinkle,Atieh Abedin-Do,Nataly Naser Al Deen,Kazuhito Sato,Xiang Li,André Luiz N Targino da Costa,Yize Li,Alla Karpova,John M Herndon,Maxim N Artyomov,Joshua B Rubin,Sanjay Jain,Xue Li,Sheila A Stewart,Li Ding,Feng Chen
View all publications

Product promise

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