• Product nameAspartate Aminotransferase Activity Assay Kit
    See all Aspartate Aminotransferase kits
  • Detection methodColorimetric
  • Sample type
    Cell culture supernatant, Urine, Serum, Plasma, Other biological fluids, Tissue Extracts
  • Assay typeEnzyme activity
  • Sensitivity
    10 mU/well
  • Assay durationMultiple steps standard assay
  • Product overview

    In Abcam's Aspartate Aminotransferase Activity Assay Kit an amino group is transferred of from aspartate to alpha-ketoglutarate. The products of this reversible transamination reaction are oxaloacetate and glutamate. The glutamate is detected in a reaction that concomitantly converts a nearly colorless probe to color (?max = 450 nm). The kit provides a rapid, simple, sensitive and reliable test suitable as a high throughput activity assay of AST with a detection limit of 10 mU per well.
    Visit our FAQs page for tips and troubleshooting.

  • Notes

    Aspartate aminotransferase (AST), also known as Glutamate-oxaloacetate transaminase (GOT) is a transaminase (EC similar to the more liver specific alanine transaminase (ALT). Although commonly included clinically as part of a diagnostic liver function test, AST has a broader clinical utility since it may also be elevated in diseases affecting other organs, such as the heart or muscles in myocardial infarction, also in acute pancreatitis, acute hemolytic anemia, severe burns, acute renal disease, musculoskeletal diseases and trauma. It catalyzes the reaction: Aspartate + alpha-Ketoglutarate = Oxaloacetate + Glutamate Diagnostically, it is almost always measured in units/liter (U/L).

  • Tested applicationsSuitable for: Functional Studiesmore details
  • PlatformMicroplate


  • FunctionPlays a key role in amino acid metabolism.
  • Sequence similaritiesBelongs to the class-I pyridoxal-phosphate-dependent aminotransferase family.
  • Cellular localizationCytoplasm.
  • Information by UniProt
  • Alternative names
    • Aspartate aminotransferase
    • Aspartate aminotransferase 1
    • Aspartate aminotransferase cytoplasmic
    • Aspartate aminotransferase cytosolic
    • ASTQTL1
    • cAspAT
    • cCAT
    • cysteine aminotransferase, cytoplasmic
    • cysteine transaminase, cytoplasmic
    • cytoplasmic
    • ec
    • GIG 18
    • GIG18
    • Glutamate oxaloacetate transaminase 1
    • Glutamate oxaloacetate transaminase soluble
    • Glutamic oxaloacetic transaminase 1 soluble
    • GOT 1
    • GOT1
    • Growth inhibiting protein 18
    • SGOT
    • Transaminase A
    see all


Our Abpromise guarantee covers the use of ab105135 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
Functional Studies Use at an assay dependent dilution.

Aspartate Aminotransferase Activity Assay Kit images

  • AST activity measured in mouse tissue lysates showing activity (mU) per mg of extracted protein (T1 = 2 min; T2 = 60 min).

  • AST activity measured in human biological fluids showing activity (mU) per mL of tested sample, (T1 = 2 min; T2 = 60 min) with background signals subtracted.

  • AST activity measured in cell culture medium and control medium, background signal subtracted. T1 = 2 min; T2 = 60 min.

  • AST activity measured in cell lysates (T1 = 2 min; T2 = 60 min; duplicates (+/- SD), background signal subtracted).

  • Standard curve (60 minutes incubation): mean of duplicates (+/- SD) with background reads subtracted.

  • Example of Standard Curve and Positive control detection using ab105135.


References for Aspartate Aminotransferase Activity Assay Kit (ab105135)

This product has been referenced in:
  • Smedlund K  et al. Early steatohepatitis in hyperlipidemic mice with endothelial-specific gain of TRPC3 function precedes changes in aortic atherosclerosis. Physiol Genomics 48:644-9 (2016). Read more (PubMed: 27449657) »

See 1 Publication for this product

Product Wall

It is recommended to measure standard curve at both times 10 mins and 60 mins. Then use the difference in Abs at 60min - Abs at 10min to plot the Std curve (OD on Y axis versus Glutamate nmol on the X axis).

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The identity of all the kit components is proprietary information. The mechanism of the reaction is exactly as mentioned on the datasheet. The substrate is a sequence the AST and the other enzymes in the provided mix will act upon. The probe will inter...

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