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Rat AST ELISA Kit (Aspartate Aminotransferase) is a single-wash 90-min Simplestep used to quantify Rat AST (Aspartate Aminotransferase) with a sensitivity of 42.4 pg/ml. The assay uses a simple mix-wash-read protocol with just one incubation and one wash step.

- Colorimetric Sandwich ELISA - 450 nm readout : works on any standard plate reader
- Design your own immunoassay: we also offer the conjugation-ready antibody pair
- Cited in over 15 citations

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Images

Sandwich ELISA - Rat AST ELISA Kit (Aspartate Aminotransferase) (AB263883), expandable thumbnail
  • Sandwich ELISA - Rat AST ELISA Kit (Aspartate Aminotransferase) (AB263883), expandable thumbnail
  • Sandwich ELISA - Rat AST ELISA Kit (Aspartate Aminotransferase) (AB263883), expandable thumbnail

Publications

Key facts

Detection method
Colorimetric
Sample types
Heparin Plasma, Citrate plasma, Serum, EDTA Plasma
Assay type
Sandwich (quantitative)
Reactive species
Rat
Range
125 - 8000 pg/mL
Assay time
1h 30m
Sensitivity
= 42.4 pg/mL

Reactivity data

Application
sELISA
Reactivity
Reacts
Dilution info
-
Notes

-

Target data

Function

Biosynthesis of L-glutamate from L-aspartate or L-cysteine. Important regulator of levels of glutamate, the major excitatory neurotransmitter of the vertebrate central nervous system. Acts as a scavenger of glutamate in brain neuroprotection. The aspartate aminotransferase activity is involved in hepatic glucose synthesis during development and in adipocyte glyceroneogenesis. Using L-cysteine as substrate, regulates levels of mercaptopyruvate, an important source of hydrogen sulfide. Mercaptopyruvate is converted into H(2)S via the action of 3-mercaptopyruvate sulfurtransferase (3MST). Hydrogen sulfide is an important synaptic modulator and neuroprotectant in the brain.

Alternative names

What's included?

1 x 96 Tests
Components
10X Rat AST (Aspartate Aminotransferase) Capture Antibody
1 x 600 µL
10X Rat AST (Aspartate Aminotransferase) Detector Antibody
1 x 600 µL
10X Wash Buffer PT (ab206977)
1 x 20 mL
50X Cell Extraction Enhancer Solution (ab193971)
1 x 1 mL
5X Cell Extraction Buffer PTR (ab193970)
1 x 10 mL
Antibody Diluent 4BR
1 x 6 mL
Plate Seals
1 x 1 Unit
Rat AST (Aspartate Aminotransferase) Lyophilized Recombinant Protein
2 x 1 Vial
Sample Diluent NS (ab193972)
1 x 50 mL
SimpleStep Pre-Coated 96-Well Microplate (ab206978)
1 x 1 Unit
Stop Solution
1 x 12 mL
TMB Development Solution
1 x 12 mL

Recommended products

Rat AST ELISA Kit (Aspartate Aminotransferase) is a single-wash 90-min Simplestep used to quantify Rat AST (Aspartate Aminotransferase) with a sensitivity of 42.4 pg/ml. The assay uses a simple mix-wash-read protocol with just one incubation and one wash step.

- Colorimetric Sandwich ELISA - 450 nm readout : works on any standard plate reader
- Design your own immunoassay: we also offer the conjugation-ready antibody pair
- Cited in over 15 citations

Key facts

Detection method
Colorimetric
Sample types
Heparin Plasma, Citrate plasma, Serum, EDTA Plasma
Assay type
Sandwich (quantitative)
Reactive species
Rat
Range
125 - 8000 pg/mL
Assay time
1h 30m
Assay Platform
Pre-coated microplate (12 x 8 well strips)
Sensitivity
= 42.4 pg/mL

Precision

Intra assay

Sample
Serum
n
8
mean
-
SD
-
C.V.
2.5

Inter assay

Sample
Serum
n
3
mean
-
SD
-
C.V.
2.2

Recovery

Sample specific recovery

Sample type
Serum
Average %
= 98
Range
92 - 110 %
Sample type
EDTA Plasma
Average %
= 102
Range
98 - 107 %
Sample type
Heparin Plasma
Average %
= 112
Range
105 - 118 %
Sample type
Citrate plasma
Average %
= 112
Range
106 - 116 %
Sample type
Tissue Extracts
Average %
= 101
Range
99 - 105 %

Storage

Shipped at conditions
Blue Ice
Appropriate short-term storage conditions
+4°C
Appropriate long-term storage conditions
+4°C
Storage information
+4°C

Notes

Rat AST ELISA Kit (Aspartate Aminotransferase) (ab263883) is a single-wash 90 min sandwich ELISA designed for the quantitative measurement of AST (Aspartate Aminotransferase) protein in cit plasma, edta plasma, hep plasma, and serum. It uses our proprietary SimpleStep ELISA® technology. Quantitate Rat AST (Aspartate Aminotransferase) with 42.4 pg/ml sensitivity.

SimpleStep ELISA® technology employs capture antibodies conjugated to an affinity tag that is recognized by the monoclonal antibody used to coat our SimpleStep ELISA® plates. This approach to sandwich ELISA allows the formation of the antibody-analyte sandwich complex in a single step, significantly reducing assay time. See the SimpleStep ELISA® protocol summary in the image section for further details. Our SimpleStep ELISA® technology provides several benefits:

- Single-wash protocol reduces assay time to 90 minutes or less
- High sensitivity, specificity and reproducibility from superior antibodies
- Fully validated in biological samples
- 96-wells plate breakable into 12 x 8 wells strips

A 384-well SimpleStep ELISA® microplate (Pre-coated 384 well Microplate SimpleStep ELISA® ab203359) is available to use as an alternative to the 96-well microplate provided with SimpleStep ELISA® kits.

Cytoplasmic aspartate aminotransaminase (AST), is a key enzyme in the regulation of glutamate levels. It catalyzes the reversible transfer of an a-amino group between aspartate and glutamate. Given its central role in amino acid metabolism, it plays a critical role in many biological functions. In a clinical context, AST levels in the serum are used as a marker for liver health. This kit targets the full-length protein.

Abcam has not and does not intend to apply for the REACH Authorisation of customers' uses of products that contain European Authorisation list (Annex XIV) substances.
It is the responsibility of our customers to check the necessity of application of REACH Authorisation, and any other relevant authorisations, for their intended uses.

Supplementary info

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

Aspartate Aminotransferase (AST) also known as aspartate transaminase or aspartate transferase is an enzyme important for amino acid metabolism. Mechanically it catalyzes the reversible transfer of an amino group from aspartate to α-ketoglutarate forming oxaloacetate and glutamate. AST has a molecular mass of approximately 92 kDa and is expressed in various tissues with high levels found in liver heart muscle and kidneys. Its presence in these tissues highlights its importance in cellular metabolic processes.

Biological function summary

AST facilitates the interconversion between aspartate and oxaloacetate playing a role in the amino acid and urea cycles. Though not part of a large complex AST works closely with similar enzymes such as alanine aminotransferase (ALT) to maintain amino acid balance and support energy production. This enzymatic activity is important in nitrogen metabolism and glutamate use which are necessary for synthesizing other essential molecules within the cell.

Pathways

AST participates in the citric acid cycle and malate-aspartate shuttle enabling efficient energy production and NADH transport. The enzyme assists in converting oxaloacetate a pivotal intermediate in the citric acid cycle to keep the cycle active ensuring efficient cellular respiration. Additionally in the malate-aspartate shuttle AST works alongside malate dehydrogenase to facilitate the transfer of reducing equivalents across the mitochondrial membrane which is essential for ATP generation.

Associated diseases and disorders

Elevated AST levels often indicate liver damage such as in hepatitis or cirrhosis reflecting its significant tissue expression. The enzyme is also linked to myocardial infarction as damaged heart muscle releases AST into the bloodstream. In these conditions AST serves as a biomarker for tissue damage often in conjunction with ALT levels allowing clinicians to assess the extent of liver or cardiac injury.

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3 product images

  • Sandwich ELISA - Rat AST ELISA Kit (Aspartate Aminotransferase) (ab263883), expandable thumbnail

    Sandwich ELISA - Rat AST ELISA Kit (Aspartate Aminotransferase) (ab263883)

    Example of rat AST standard curve in Sample Diluent NS.

    The AST standard curve was prepared as described in Section 10. Raw data values are shown in the table. Background-subtracted data values (mean +/- SD) are graphed.

  • Sandwich ELISA - Rat AST ELISA Kit (Aspartate Aminotransferase) (ab263883), expandable thumbnail

    Sandwich ELISA - Rat AST ELISA Kit (Aspartate Aminotransferase) (ab263883)

    Interpolated concentrations of native AST in rat serum and plasma samples.

    The concentrations of AST were measured in duplicates, interpolated from the AST standard curves and corrected for sample dilution. Undiluted samples are as follows: serum 1:20, plasma (citrate) 1:20, plasma (EDTA) 1:20, and plasma (heparin) 1:40. The interpolated dilution factor corrected values are plotted (mean +/- SD, n=2). The mean AST concentration was determined to be 148 ng/mL in serum, 143 ng/mL in plasma (citrate), 127 ng/mL in plasma (EDTA), and 174 ng/mL in plasma (heparin).

  • Sandwich ELISA - Rat AST ELISA Kit (Aspartate Aminotransferase) (ab263883), expandable thumbnail

    Sandwich ELISA - Rat AST ELISA Kit (Aspartate Aminotransferase) (ab263883)

    Interpolated concentrations of native AST in rat liver extract based on a 6,250 ng/mL extract load.

    The concentrations of AST were measured in duplicate and interpolated from the AST standard curve and corrected for sample dilution. The interpolated dilution factor corrected values are plotted (mean +/- SD, n=2). The mean AST concentration was determined to be 5,247 pg/mL in rat liver extract.

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Product protocols

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

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