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Histone Deacetylase (HDAC) Activity Assay Kit (Fluorometric) ab156064 detects HDAC activity in lysates.


Images

Functional Studies - Histone Deacetylase (HDAC) Activity Assay Kit (Fluorometric) (AB156064), expandable thumbnail
  • Functional Studies - Histone Deacetylase (HDAC) Activity Assay Kit (Fluorometric) (AB156064), expandable thumbnail
  • Functional Studies - Histone Deacetylase (HDAC) Activity Assay Kit (Fluorometric) (AB156064), expandable thumbnail
  • Functional Studies - Histone Deacetylase (HDAC) Activity Assay Kit (Fluorometric) (AB156064), expandable thumbnail
  • Functional Studies - Histone Deacetylase (HDAC) Activity Assay Kit (Fluorometric) (AB156064), expandable thumbnail

Publications

Key facts

Detection method
Fluorescent
Sample types
Cell culture extracts, Tissue Extracts
Assay type
Enzyme activity
Reactive species
Mammals
Assay time
1h

What's included?

100 Test
Components
Crude HDAC
1 x 500 µL
Developer
1 x 500 µL
Fluoro-Deacetylated Peptide (0.2 mM)
1 x 100 µL
Fluoro-Substrate Peptide (0.2 mM)
1 x 500 µL
HDAC Assay Buffer
2 x 1 mL
HDAC Stop Solution
2 x 1 mL
Trichostatin A (10µM)
1 x 500 µL

Recommended products

Histone Deacetylase (HDAC) Activity Assay Kit (Fluorometric) ab156064 detects HDAC activity in lysates.

Key facts

Detection method
Fluorescent
Sample types
Cell culture extracts, Tissue Extracts
Assay type
Enzyme activity
Reactive species
Mammals
Assay time
1h
Assay Platform
Microplate reader

Storage

Shipped at conditions
Dry Ice
Appropriate short-term storage conditions
-80°C
Appropriate long-term storage conditions
Multi
Storage information
Please refer to protocols

Notes

Histone Deacetylase (HDAC) Activity Assay Kit (Fluorometric) ab156064 detects HDAC activity in lysates.

The HDAC Activity Assay Kit is primarily designed for the evaluation of HDAC inhibitors using a crude HDAC fraction. Also, any cultured primary cell, cell line, or tissue homogenate can be assayed for HDAC activity with the kit if the appropriate dose of HDAC specific inhibitor e.g. Trichostatin A is used.

The HDAC activity assay protocol is based on an acetylated peptide which is conjugated to AMC. AMC is a fluorescent dye and its fluoresence is quenched when conjugated to the peptide. When the HDAC de-acetylates the peptide, it becomes susceptible to cleavage by an enzyme (the Developer component). This then releases free AMC, which can be measured using a fluorescence microplate reader (Ex/Em 355/460 nm).

The HDAC assay has been shown to detect the activity of the HDAC family, at least class I HDACs in Human or animal cell lysates or in column fractions. The assay shows good linearity of sample response. The assay may be used to follow the purification of HDACs or may be used to detect the presence of HDACs in cell lysates.

Applications for this kit include:
1. Monitoring the purification of HDACs including HDAC1, 2, 3 and 8.
2. Screening inhibitors or activators of HDACs.
3. Detecting the effects of pharmacological agents on HDACs.

Background information on HDACs

Histone Deacetylases (HDACs) are a class of enzymes responsible for the deacetylation of lysine residues on the N-terminal part of the core histones (H2A, H2B, H3 and H4), allowing the histones to wrap the DNA more tightly.

HDAC proteins occur in four groups (class I, class IIA, class IIB, class III, class IV) based on function and DNA sequence similarity.
Classes I, IIA and IIB are considered "classical" HDACs whose activities are inhibited by trichostatin A (TSA), whereas class III is a family of NAD+-dependent proteins (sirtuins) not affected by TSA. Class IV is considered an atypical class on its own, based solely on DNA sequence similarity to the others.

Supplementary info

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

HDAC1 also known as Histone Deacetylase 1 is a member of the histone deacetylase family with a molecular weight of approximately 55 kDa. Mechanically HDAC1 removes acetyl groups from lysine residues on histone proteins an action known as histone deacetylation. This process causes chromatin structure to become more compact which leads to transcriptional repression. HDAC1 is broadly expressed in various tissues particularly in the brain heart and kidneys and is vital for cellular development and differentiation.

Biological function summary

The enzymatic activity of histone deacetylase effectively controls gene expression. HDAC1 participates as a part of the multiprotein complexes including SIN3 and NuRD which play vital roles in the regulation of transcription. By altering the acetylation state of histones HDAC1 influences chromatin remodeling thereby affecting the accessibility of transcription factors to DNA and controlling genes necessary for cell cycle progression and proliferation.

Pathways

The function of HDAC1 fits into the regulation of the cell cycle and apoptosis pathways. In the cell cycle pathway HDAC1 interacts with other histone deacetylases (HDACs) and plays a role in controlling the progression of the cell division. The interplay between HDAC1 and proteins such as p53 further showcases its regulatory activity in apoptosis ensuring cell survival or programmed cell death when necessary.

Associated diseases and disorders

HDAC1 shows significant relevance to cancer and neurodegenerative diseases. In cancer the overexpression or abnormal regulation of HDAC1 can lead to uncontrolled cell proliferation often linked to the silencing of tumor suppressor genes. Within neurodegenerative conditions HDAC1-related disturbances in gene expression may result in impaired neuronal function and survival. The involvement of HDAC1 with proteins such as p53 and other HDACs illustrates its impact on complex disease mechanisms making it a critical target for therapeutic interventions.

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5 product images

  • Functional Studies - Histone Deacetylase (HDAC) Activity Assay Kit (Fluorometric) (ab156064), expandable thumbnail
    Li, Meng et al., Frontiers in pharmacology vol. 9 533., Fig 4, doi:10.3389/fphar.2018.00533

    Functional Studies - Histone Deacetylase (HDAC) Activity Assay Kit (Fluorometric) (ab156064)

    Butyrate, propionate, and TSA inhibited HDACs activity in HUVEC. HDACs activity were inhibited in HUVEC by treatment of butyrate and propionate. The results were normalized using the control as 100%.

  • Functional Studies - Histone Deacetylase (HDAC) Activity Assay Kit (Fluorometric) (ab156064), expandable thumbnail

    Functional Studies - Histone Deacetylase (HDAC) Activity Assay Kit (Fluorometric) (ab156064)

    8 uL (corresponding to 6.7e6 cells) of nuclear extracts (Nuclear Extraction Kit ab113474) from HL60 cells were assessed kinetically (+/- SD).

  • Functional Studies - Histone Deacetylase (HDAC) Activity Assay Kit (Fluorometric) (ab156064), expandable thumbnail

    Functional Studies - Histone Deacetylase (HDAC) Activity Assay Kit (Fluorometric) (ab156064)

    Different volumes of positive control, with inhibitor (TA), kinetically read (+/- SD).

  • Functional Studies - Histone Deacetylase (HDAC) Activity Assay Kit (Fluorometric) (ab156064), expandable thumbnail

    Functional Studies - Histone Deacetylase (HDAC) Activity Assay Kit (Fluorometric) (ab156064)

    Measurement of HeLa cell endogenous HDAC1 in an immunoprecipitated sample with anti-HDAC1 antibody and following the Histone Deacetylase (HDAC) Activity Assay Kit (Fluorometric) (ab156064) protocol.

  • Functional Studies - Histone Deacetylase (HDAC) Activity Assay Kit (Fluorometric) (ab156064), expandable thumbnail

    Functional Studies - Histone Deacetylase (HDAC) Activity Assay Kit (Fluorometric) (ab156064)

    Measurement of HeLa cell endogenous HDAC2 in an immunoprecipitated sample with anti-HDAC2 antibody following the Histone Deacetylase (HDAC) Activity Assay Kit (Fluorometric) (ab156064) protocol.

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