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AB273310

Transketolase Activity Assay Kit (Fluorometric)

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(2 Publications)

Transketolase Activity Assay Kit (Fluorometric) (ab273310) is a simple, plate-based fluorometric assay for measuring Transketolase (EC 2.

View Alternative Names

Transketolase, TK, TKT

3 Images
Functional Studies - Transketolase Activity Assay Kit (Fluorometric) (AB273310)
  • FuncS

Supplier Data

Functional Studies - Transketolase Activity Assay Kit (Fluorometric) (AB273310)

Enzyme kinetics using rat liver lysate and J774A cell lysate.

Example data.

Enzyme kinetics using rat liver lysate (1.2 μg protein/well) and J774A cell lysate (2 μg protein/well).

Functional Studies - Transketolase Activity Assay Kit (Fluorometric) (AB273310)
  • FuncS

Supplier Data

Functional Studies - Transketolase Activity Assay Kit (Fluorometric) (AB273310)

TKT specific activity in rat liver lysate and J774A cells.

Example data.

Experiments were conducted according to kit protocol.

Functional Studies - Transketolase Activity Assay Kit (Fluorometric) (AB273310)
  • FuncS

Supplier Data

Functional Studies - Transketolase Activity Assay Kit (Fluorometric) (AB273310)

Gyceraldehyde 3-phosphate standard curve.

Typical standard curve – data provided for demonstration purposes only. A new standard curve must be generated for each assay performed.

Key facts

Detection method

Fluorescent

Sample types

Purified protein, Tissue Lysate, Cell Lysate

Assay type

Enzyme activity (quantitative)

Sensitivity

= 5 µU

Assay Platform

Microplate

Reactivity data

{ "title": "Reactivity Data", "filters": { "stats": ["", "Reactivity", "Dilution Info", "Notes"] }, "values": { "Enzyme activity assay": { "reactivity":"TESTED_AND_REACTS", "dilution-info":"", "notes":"<p></p>" } } }

Product details

Transketolase Activity Assay Kit (Fluorometric) (ab273310) is a simple, plate-based fluorometric assay for measuring Transketolase (EC 2.2.1.1) TKT activity in biological samples. In this assay, TKT transfers a two-carbon group from a donor keto sugar to an acceptor aldose sugar. The product formed converts a non-fluorescent probe to a fluorescent product via an enzymatic reaction in the presence of a developer and an enzyme mix.

The assay can detect as low as 5 uU of TKT activity in biological samples.

Other Notes
This product was previously called K2004 Biovision Transketolase Activity Assay Kit (Fluorometric). Biovision was acquired by Abcam in 2021.

The Safety Datasheet for this product has been updated for certain countries. Please check the current version in the Support and downloads section.

What's included?

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Properties and storage information

Shipped at conditions
Blue Ice
Appropriate short-term storage conditions
-20°C
Appropriate long-term storage conditions
-20°C
Storage information
-20°C

Supplementary information

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

Transketolase (TKT) is an important enzyme that plays an important mechanical role in the pentose phosphate pathway by catalyzing the transfer of ketol groups from ketose donors to aldose acceptors. This process forms part of the non-oxidative segment of the pathway converting ribose 5-phosphate into other sugars equipped for nucleotide synthesis and energy metabolism. TKT is also recognized under the name erythrocyte transketolase as it is found in high abundance in erythrocytes. The enzyme has a molecular mass of around 73 kDa and expresses broadly in human tissues especially within liver and fat cells where it supports carbohydrate metabolism.
Biological function summary

Transketolase participates in critical cellular metabolic processes facilitating cellular growth and repair by supporting the synthesis of nucleotides and amino acids. It does not function alone but rather operates as part of a complex with other enzymes such as transaldolase within the pentose phosphate pathway. The direct activity of erythrocyte transketolase can be essential for maintaining redox balance and providing intermediates that impact cell proliferation and antioxidant defense mechanisms.

Pathways

With regard to pathways involved in carbohydrate metabolism TKT plays an important role in the pentose phosphate pathway and glycolysis. In the pentose phosphate pathway TKT collaborates with enzymes like glucose-6-phosphate dehydrogenase to provide ribose-5-phosphate for nucleic acid synthesis and NADPH for reductive biosynthesis and oxidative stress defense. Its relationship with transaldolase in this pathway showcases a tightly regulated enzymatic network that maintains cellular homeostasis.

TKT is associated with metabolic dysfunctions such as diabetes and certain neurodegenerative diseases including Wernicke's encephalopathy. In diabetes changes in transketolase activity can disturb glucose metabolism and contribute to oxidative stress linking it subconsciously with enzymes like phospholipase C which play roles in lipid signaling and cellular responses. Additionally reduced erythrocyte transketolase activity connects with thiamine deficiency in Wernicke's encephalopathy further affecting brain functions and metabolic pathways relying on proper transketolase function.

Product protocols

Target data

Catalyzes the transfer of a two-carbon ketol group from a ketose donor to an aldose acceptor, via a covalent intermediate with the cofactor thiamine pyrophosphate.
See full target information Transketolase

Publications (2)

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

Acta neuropathologica communications 13:139 PubMed40581635

2025

MYC promotes group 3 medulloblastoma cell proliferation and alleviates ROS-induced cell death by upregulating transketolase.

Applications

Unspecified application

Species

Unspecified reactive species

Shizun Wang,Dan Zhang,Chunlong Wang,Yuqin Liu

American journal of cancer research 14:679-695 PubMed38455402

2024

Regulating TKT activity inhibits proliferation of human acute lymphoblastic leukemia cells.

Applications

Unspecified application

Species

Unspecified reactive species

Fang-Liang Huang,Yao-Ming Chang,Cheng-Yung Lin,Sheng-Jie Yu,Jing-Tong Fu,Ting-Yu Chou,Sih-Wen Yeh,En-Chih Liao,Chia-Ling Li
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