Anti-alpha 1 Antitrypsin antibody, prediluted (ab922)

Overview

  • Product nameAnti-alpha 1 Antitrypsin antibody, prediluted
    See all alpha 1 Antitrypsin primary antibodies
  • Description
    Rabbit polyclonal to alpha 1 Antitrypsin, prediluted
  • SpecificityThe antibody is specific for human alpha-1-antitrypsin. This antibody stains macrophages in human tissues and does not stain any other cell type.
  • Tested applicationsSuitable for: ICC/IF, IHC-P, IHC-Frmore details
  • Species reactivity
    Reacts with: Rat, Dog, Human, Monkey
  • Immunogen

    Alpha-1-antitrypsin isolated from human serum.

Properties

Applications

Our Abpromise guarantee covers the use of ab922 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
ICC/IF Use a concentration of 1 µg/ml.
IHC-P 1/1.
IHC-Fr 1/1.

Target

  • FunctionInhibitor of serine proteases. Its primary target is elastase, but it also has a moderate affinity for plasmin and thrombin. Irreversibly inhibits trypsin, chymotrypsin and plasminogen activator. The aberrant form inhibits insulin-induced NO synthesis in platelets, decreases coagulation time and has proteolytic activity against insulin and plasmin.
    Short peptide from AAT: reversible chymotrypsin inhibitor. It also inhibits elastase, but not trypsin. Its major physiological function is the protection of the lower respiratory tract against proteolytic destruction by human leukocyte elastase (HLE).
  • Tissue specificityUbiquitous. Expressed in leukocytes and plasma.
  • Involvement in diseaseAlpha-1-antitrypsin deficiency
  • Sequence similaritiesBelongs to the serpin family.
  • DomainThe reactive center loop (RCL) extends out from the body of the protein and directs binding to the target protease. The protease cleaves the serpin at the reactive site within the RCL, establishing a covalent linkage between the carboxyl group of the serpin reactive site and the serine hydroxyl of the protease. The resulting inactive serpin-protease complex is highly stable.
  • Post-translational
    modifications
    N-glycosylated. Differential glycosylation produces a number of isoforms. N-linked glycan at Asn-107 is alternatively di-antennary, tri-antennary or tetra-antennary. The glycan at Asn-70 is di-antennary with trace amounts of tri-antennary. Glycan at Asn-271 is exclusively di-antennary. Structure of glycans at Asn-70 and Asn-271 is Hex5HexNAc4. The structure of the antennae is Neu5Ac(alpha1-6)Gal(beta1-4)GlcNAc attached to the core structure Man(alpha1-6)[Man(alpha1-3)]Man(beta1-4)GlcNAc(beta1-4)GlcNAc. Some antennae are fucosylated, which forms a Lewis-X determinant.
    Proteolytic processing may yield the truncated form that ranges from Asp-30 to Lys-418.
  • Cellular localizationSecreted. Endoplasmic reticulum. The S and Z allele are not secreted effectively and accumulate intracellularly in the endoplasmic reticulum and Secreted, extracellular space, extracellular matrix.
  • Information by UniProt
  • Database links
  • Alternative names
    • A1A antibody
    • A1AT antibody
    • A1AT_HUMAN antibody
    • AAT antibody
    • Alpha 1 antiproteinase antibody
    • Alpha 1 antitrypsin antibody
    • Alpha 1 antitrypsin null antibody
    • Alpha 1 protease inhibitor antibody
    • Alpha-1 protease inhibitor antibody
    • Alpha-1-antiproteinase antibody
    • alpha1 proteinase inhibitor antibody
    • Alpha1AT antibody
    • Dom1 antibody
    • PI antibody
    • PI1 antibody
    • PRO2275 antibody
    • Serine (or cysteine) proteinase inhibitor clade A member 1 antibody
    • Serine protease inhibitor 1-1 antibody
    • Serine protease inhibitor A1a antibody
    • Serpin A1 antibody
    • Serpin A1a antibody
    • Serpin peptidase inhibitor clade A member 1 antibody
    • Serpina1 antibody
    • Short peptide from AAT antibody
    • SPAAT antibody
    • Spi1-1 antibody
    see all

Anti-alpha 1 Antitrypsin antibody, prediluted images

  • Human normal placenta. Staining is observed as extracellular and cytoplasmic. Left panel: with primary antibody at 1 ug/ml. Right panel: isotype control. Sections were stained using an automated system DAKO Autostainer Plus , at room temperature: sections were rehydrated and antigen retrieved with the Dako 3 in 1 AR buffers citrate pH6.1 in a DAKO PT Link. Slides were peroxidase blocked in 3% H2O2 in methanol for 10 mins. They were then blocked with Dako Protein block for 10 minutes (containing casein 0.25% in PBS) then incubated with primary antibody for 20 min and detected with Dako envision flex amplification kit for rabbit for 30 minutes. Colorimetric detection was completed with Diaminobenzidine for 5 minutes. Slides were counterstained with Haematoxylin and coverslipped under DePeX. Please note that for manual staining we recommend to optimize the primary antibody concentration and incubation time (overnight incubation), and amplification may be required.
  • ICC/IF image of ab922 stained HeLa cells. The cells were 4% formaldehyde fixed (10 min) and then incubated in 1%BSA / 10% normal goat serum / 0.3M glycine in 0.1% PBS-Tween for 1h to permeabilise the cells and block non-specific protein-protein interactions. The cells were then incubated with the antibody (ab922, 1µg/ml) overnight at +4°C. The secondary antibody (green) was Alexa Fluor® 488 goat anti-rabbit IgG (H+L) used at a 1/1000 dilution for 1h. Alexa Fluor® 594 WGA was used to label plasma membranes (red) at a 1/200 dilution for 1h. DAPI was used to stain the cell nuclei (blue) at a concentration of 1.43µM.

References for Anti-alpha 1 Antitrypsin antibody, prediluted (ab922)

ab922 has not yet been referenced specifically in any publications.

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All the information and references available for our products are contained on its datasheet. These references are updated as soon as any new information is brought to our attention. Unfortunately we don’t have any references for this a...

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This antibody reacts primarily with AAT because only one precipitating arch appears in immunoelectrophoresis. Contaminating antibodies were removed by solid phase absorption. I'm afraid that I am unable to advise which antibody would be suitable for...

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This antibody is sourced externally, therefore all the information we have for this product is stated on the datasheet. The datasheet says "The antibody is specific for human alpha-1-antitrypsin.......stains macrophages in human tissues and does not...

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Please note: All products are "FOR RESEARCH USE ONLY AND ARE NOT INTENDED FOR DIAGNOSTIC OR THERAPEUTIC USE"