MAB5278
Anti-Tryptophan Hydroxylase/Tyrosine Hydroxylase/Phenylalanine Hydroxylase Antibody, clone PH8
clone PH8, Chemicon®, from mouse
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UNSPSC Code:
12352203
eCl@ss:
32160702
NACRES:
NA.41
Recommended Products
biological source
mouse
Quality Level
antibody form
purified immunoglobulin
antibody product type
primary antibodies
clone
PH8, monoclonal
species reactivity
human
manufacturer/tradename
Chemicon®
technique(s)
immunohistochemistry: suitable
immunoprecipitation (IP): suitable
western blot: suitable
isotype
IgG1
NCBI accession no.
shipped in
wet ice
target post-translational modification
unmodified
Gene Information
human ... TPH1(7166)
General description
PH8 Antibody is a murine monoclonal antibody that binds a common epitope of Tryptophan hydroxylase (TRH), Tyrosine hydroxylase (TYH) and Phenylalanine hydroxylase (PAH).1 In the literature this monoclonal antibody is cited as PH8. Tyrosine hydroxylase (TYH) is the enzyme which converts tyrosine to dihydroxyphenylalanine (L-dopa), a precursor of the catecholamine neurotransmitters dopamine, noradrenaline and adrenaline. Tryptophan hydroxylase (TRH) is the enzyme that converts 5-hydroxytryptophan to serotonin. In fresh tissue the PH8 Antibody binds to TYH and TRH so is a marker for TYH-containing catecholaminergic neurons,2 and serotonergic neurons.3,4,5 Tryptophan hydroxylase (TRH) can be used as a marker for serotonin as it converts 5-hydroxy-tryptophan to serotonin. Serotonin is rapidly metabolised and is unable to be detected by anti-serotonin antibodies in post mortem tissue. In human tissue that has been formalin-fixed, due to a change in the antigenic determinant of tyrosine hydroxylase (TYH), PH8 Antibody will bind only tryptophan hydroxylase (TRH).3,4,5 The PH8 Antibody can therefore be used to specifically identify serotonergic neurons in fixed human tissue. Phenylalanine hydroxylase (PAH) can be detected in hepatic tissue sections using the PH8 Antibody.
Application
The PH8 Antibody can be used to identify dopaminergic and serotonergic neurons by immuno-histochemistry and for Western blot analysis, immunoprecipitation and immuno-histochemistry of TYH, PAH and TRH.
PROTOCOLS
Immunohistochemistry
The PH8 Antibody can be used for the immunohistochemical detection of dopaminergic and serotonergic neurons in human and rat brain stem tissue.
1. Tissue should be formalin fixed and stored in formalin prior to use for a minimum of five days.
2. Cryoprotect tissue using 30% sucrose in 0.1M Tris pH 7.4 buffer for 24-72 hours.
3. Cut using a sledge microtome to 50 μm thickness.
4. Wash the tissue samples using Tris buffer prior to commencing the staining procedure.
5. Treat the tissue samples for 3 x 15 minutes in 50% alcohol.
6. Treat the tissue samples for 20 minutes in 50% alcohol and 3% H2O2.
7. Treat tissue for 20 minutes with 10% normal horse serum in Tris buffer. This acts to block endogeneous H2O2 staining.
8. Dilute the PH8 Antibody in Tris buffer, add to the tissue samples and incubate for 1-3 days. Recommended dilutions are 1:2,000-1:10,000. At high antibody concentration all monoaminergic neurons are stained with no distinction between serotonegic and catecholominergic cells. By diluting the antibody concentrate, cell types are distinguishable due to variation in staining intensity. At lower concentrations (1:5,000-1:10,000 dilution) only serotonergic cells will stain.
9. Wash tissue (3 x 15 minutes), then add a biotinylated anti-mouse secondary antibody and incubate on an orbital shaker at room temperature (RT) for 1 hour.
10. Wash tissue (3 x 15 minutes) and incubate on an orbital shaker at RT for 1 hour with the tertiary complex (ELITE KIT, Vector, USA).
11. Wash tissue (3 x 15 minutes) and incubate on an orbital shaker at RT for 10 minutes with Tris buffered diamino-benzidine substrate. Add 0.1% H2O2 and incubate on an orbital shaker at RT for a further 5 minutes.
12. Mount tissue onto gelatinised slides and allow to dry prior to microscopy.
PROTOCOLS
Immunohistochemistry
The PH8 Antibody can be used for the immunohistochemical detection of dopaminergic and serotonergic neurons in human and rat brain stem tissue.
1. Tissue should be formalin fixed and stored in formalin prior to use for a minimum of five days.
2. Cryoprotect tissue using 30% sucrose in 0.1M Tris pH 7.4 buffer for 24-72 hours.
3. Cut using a sledge microtome to 50 μm thickness.
4. Wash the tissue samples using Tris buffer prior to commencing the staining procedure.
5. Treat the tissue samples for 3 x 15 minutes in 50% alcohol.
6. Treat the tissue samples for 20 minutes in 50% alcohol and 3% H2O2.
7. Treat tissue for 20 minutes with 10% normal horse serum in Tris buffer. This acts to block endogeneous H2O2 staining.
8. Dilute the PH8 Antibody in Tris buffer, add to the tissue samples and incubate for 1-3 days. Recommended dilutions are 1:2,000-1:10,000. At high antibody concentration all monoaminergic neurons are stained with no distinction between serotonegic and catecholominergic cells. By diluting the antibody concentrate, cell types are distinguishable due to variation in staining intensity. At lower concentrations (1:5,000-1:10,000 dilution) only serotonergic cells will stain.
9. Wash tissue (3 x 15 minutes), then add a biotinylated anti-mouse secondary antibody and incubate on an orbital shaker at room temperature (RT) for 1 hour.
10. Wash tissue (3 x 15 minutes) and incubate on an orbital shaker at RT for 1 hour with the tertiary complex (ELITE KIT, Vector, USA).
11. Wash tissue (3 x 15 minutes) and incubate on an orbital shaker at RT for 10 minutes with Tris buffered diamino-benzidine substrate. Add 0.1% H2O2 and incubate on an orbital shaker at RT for a further 5 minutes.
12. Mount tissue onto gelatinised slides and allow to dry prior to microscopy.
This Anti-Tryptophan Hydroxylase/Tyrosine Hydroxylase/Phenylalanine Hydroxylase Antibody, clone PH8 is validated for use in IHC, IP, WB for the detection of Tryptophan Hydroxylase/Tyrosine Hydroxylase/Phenylalanine Hydroxylase.
Physical form
Format: Purified
The immunoglobulin fraction has been purified by Protein G chromatography. 500?g liquid protein at 2mg/mL in phosphate buffered saline (PBS). The product is supplied sterile-filtered through a 0.22 micron filter
Storage and Stability
The PH8 Antibody is shipped liquid at ambient temperature. Liquid material is stable for at up to 6 months when stored at 2-8°C.
Legal Information
CHEMICON is a registered trademark of Merck KGaA, Darmstadt, Germany
wgk_germany
WGK 2
flash_point_f
Not applicable
flash_point_c
Not applicable
Certificates of Analysis (COA)
Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.
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Fiona M Bright et al.
Journal of neuropathology and experimental neurology, 76(10), 864-873 (2017-09-20)
Serotonin (5-hydroxytryptamine [5-HT]) neurons in the medulla oblongata project extensively to key autonomic and respiratory nuclei in the brainstem and spinal cord regulating critical homeostatic functions. Multiple abnormalities in markers of 5-HT function in the medulla in sudden infant death
Brainstem deficiency of the 14-3-3 regulator of serotonin synthesis: a proteomics analysis in the sudden infant death syndrome.
Broadbelt, KG; Rivera, KD; Paterson, DS; Duncan, JR; Trachtenberg, FL; Paulo, JA; Stapels et al.
Molecular and Cellular Proteomics null
Yuefeng Lu et al.
Anatomical record (Hoboken, N.J. : 2007), 293(11), 1954-1965 (2010-08-25)
Several lines of evidence have implicated a direct reciprocal interaction between serotonin and nitric oxide (NO). The goal of this investigation was, therefore, to examine the coexpression of tryptophan hydroxylase (TPH; the rate limiting enzyme for the synthesis of serotonin)
Rana A Eser et al.
Journal of neuropathology and experimental neurology, 77(2), 149-161 (2018-01-06)
The brainstem nuclei of the reticular formation (RF) are critical for regulating homeostasis, behavior, and cognition. RF degenerates in tauopathies including Alzheimer disease (AD), progressive supranuclear palsy (PSP), and corticobasal degeneration (CBD). Although the burden of phopho-tau inclusion is high
Rebecca L Miller et al.
Brain research, 1601, 40-51 (2015-01-06)
Epithelial sodium channels (ENaCs) are strongly expressed in the circumventricular organs (CVOs), and these structures may play an important role in sensing plasma sodium levels. Here, the potent ENaC blocker amiloride was injected intraperitoneally in rats and 2h later, the
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