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AB1511

Sigma-Aldrich

Anti-Glutamate Decarboxylase 65 & 67 Antibody

Chemicon®, from rabbit

Synonym(s):

65 kDa glutamic acid decarboxylase, Glutamate decarboxylase 65 kDa isoform, Glutamate decarboxylase-2 (pancreas), glutamate decarboxylase 2, glutamate decarboxylase 2 (pancreatic islets and brain,65kD), glutamate decarboxylase 2 (pancreatic islets and br

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About This Item

UNSPSC Code:
12352203
eCl@ss:
32160702

biological source

rabbit

antibody form

saturated ammonium sulfate (SAS) precipitated

antibody product type

primary antibodies

clone

polyclonal

species reactivity

mouse, feline, rat, human

manufacturer/tradename

Chemicon®

technique(s)

immunohistochemistry: suitable
western blot: suitable

NCBI accession no.

UniProt accession no.

shipped in

dry ice

target post-translational modification

unmodified

Gene Information

human ... GAD2(2572)

General description

Gutamic acid decarboxylase (GAD; E.C. 4.1.1.15) is the enzyme responsible for the conversion of glutamic acid to gamma-aminobutyric acid (GABA), the major inhibitory transmitter in higher brain regions, and putative paracrine hormone in pancreatic islets. Two molecular forms of GAD (65 kDa and 67 kDa, 64% aa identity between forms) are highly conserved and both forms are expressed in the CNS, pancreatic islet cells, testis, oviduct and ovary. The isoforms are regionally distributed cytoplasmically in the brains of rats and mice (Sheikh, S. et al. 1999). GAD65 is an ampiphilic, membrane-anchored protein (585 a.a.), encoded on human chromosome 10, and is responsible for vesicular GABA production. GAD67 is cytoplasmic (594 a.a.), encoded on chromosome 2, and seems to be responsible for significant cytoplasmic GABA production. GAD expression changes during neural development in rat spinal cord. Colocalization of the two GAD isoforms also shows changes in GAD65/GAD67 distributions correlated with certain disease states such as IDDM and SMS.

Specificity

Glutamate Decarboxylase (GAD65 and GAD67).
Western blot reveals a doublet at approximately 65/68 kDa.
Immunohistochemical staining can be abolished by preincubation with 1-10 μg peptide (Catalog Number AG252) per mL of diluted antibody.

Immunogen

A synthetic peptide with the amino acid sequence [C]DFLIEEIERLGQDL from rat glutamate decarboxylase (GAD65; C-terminus residues [Cys] + 572-585) (1).

Application

Immunohistochemistry:
1:200-1:5,000 dilution of a previous lot was used in immunohistochemistry (overnight PAP or ABC). Several fixative solutions may be used. Aldehyde-combination fixatives (i.e. those containing formaldehyde and glutaraldehyde) usually give satisfactory results. Bouin and Susa fixatives containing 0.1-0.2% glutaraldehyde have been used satisfactorily. Also reactive on paraffin embedded tissue. Protease digestion is not required.

Optimal working dilutions must be determined by the end user.
Research Category
Neuroscience
Research Sub Category
Neurotransmitters & Receptors

Neuronal & Glial Markers
This Anti-Glutamate Decarboxylase 65 & 67 Antibody is validated for use in IH, WB for the detection of Glutamate Decarboxylase 65 & 67.

Quality

Evaluated by Western Blot on mouse brain lysates.

Western Blot Analysis:
1:500 dilution of this antibody detected GAD 65&67 on 10 μg of mouse brain lysates.

Target description

65/68 kDa

Physical form

Ammonium Sulfate Precipitation
Format: Purified
Purified rabbit polyclonal in buffer containing PBS-BSA containing 0.1% sodium azide.

Storage and Stability

Stable for 1 year at -20°C in undiluted aliquots (not less than 10 μL) from date of receipt.
Handling Recommendations: Upon first thaw, and prior to removing the cap, centrifuge the vial and gently mix the solution. Aliquot into microcentrifuge tubes and store at -20°C. Avoid repeated freeze/thaw cycles, which may damage IgG and affect product performance.

Analysis Note

Control
Whole rat brain lysate, mouse brain cell extract.

Other Notes

Concentration: Please refer to the Certificate of Analysis for the lot-specific concentration.

Legal Information

CHEMICON is a registered trademark of Merck KGaA, Darmstadt, Germany

Disclaimer

Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.

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Storage Class Code

12 - Non Combustible Liquids

WGK

WGK 1

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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P E Phelps et al.
The Journal of comparative neurology, 409(2), 285-298 (1999-06-24)
Early-forming commissural neurons are studied intensively as a model of axonal outgrowth and pathfinding, yet the neurotransmitter phenotype of the majority of these neurons is not known. The present study has determined that a substantial number of commissural neurons express
Hiroshi Katsuki et al.
Neuroreport, 16(11), 1157-1161 (2005-07-14)
Selective degeneration of hypothalamic orexin neurons, a hallmark of pathology in narcolepsy patients, is in part reproduced in hypothalamic slice cultures by application of an endogenous excitotoxin quinolinic acid. Depolarized membrane potential may be responsible for the vulnerability of orexin
A El Idrissi et al.
Neuroscience, 156(3), 693-699 (2008-08-30)
Taurine, 2-aminoethanesulfonic acid, is one of the most abundant free amino acids especially in excitable tissues, with wide physiological actions. We have previously reported that in mice, supplementation of the drinking water with taurine induces alterations in the inhibitory GABAergic
Manganese ethylene-bis-dithiocarbamate and selective dopaminergic neurodegeneration in rat: a link through mitochondrial dysfunction.
Zhang, Jing, et al.
Journal of Neurochemistry, 84, 336-346 (2003)
Hearing loss alters the subcellular distribution of presynaptic GAD and postsynaptic GABAA receptors in the auditory cortex.
Sarro, EC; Kotak, VC; Sanes, DH; Aoki, C
Cerebral Cortex (1991)

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