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Key Documents

G2781

Sigma-Aldrich

Anti-Glutamine Synthetase antibody produced in rabbit

IgG fraction of antiserum, buffered aqueous solution

Synonyme(s) :

Glutamine Synthetase Antibody, Glutamine Synthetase Antibody - Anti-Glutamine Synthetase antibody produced in rabbit

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About This Item

Numéro MDL:
Code UNSPSC :
12352203
Nomenclature NACRES :
NA.41

Source biologique

rabbit

Niveau de qualité

Conjugué

unconjugated

Forme d'anticorps

IgG fraction of antiserum

Type de produit anticorps

primary antibodies

Clone

polyclonal

Forme

buffered aqueous solution

Poids mol.

antigen 45 kDa

Espèces réactives

rat

Conditionnement

antibody small pack of 25 μL

Technique(s)

immunohistochemistry (formalin-fixed, paraffin-embedded sections): 1:10,000 using rat brain sections
microarray: suitable
western blot: 1:10,000 using rat brain cytosolic fraction

Numéro d'accès UniProt

Température de stockage

−20°C

Modification post-traductionnelle de la cible

unmodified

Informations sur le gène

human ... GLUL(2752)
mouse ... Glul(14645)
rat ... Glul(24957)

Description générale

Anti-Glutamine Synthetase is produced in rabbit using a synthetic peptide corresponding to the C-terminus of mouse glutamine synthetase (GS) conjugated to keyhole limpet hemocyanin (KLH) as immunogen. This sequence is identical in human, bovine, rat, hamster and pig GS, and highly conserved in chicken GS. GS is found in mammals as an octamer of identical 45 kDa subunits. It is localized in glial cells of various species. It is present in the brain primarily in astrocytes and in the retina in Muller glial cells that support neurons using glutamate as a neurotransmitter. GS is found in several brain regions including hippocampus, cerebral cortex, neostriatum and cerebellar granular layer, corresponding to sites with high glutamate receptor density.

Spécificité

Anti-Glutamine synthetase recognizes rat glutamine synthetase (GS) (45 kDa). Staining of GS in immunoblotting is specifically inhibited with the GS immunizing peptide (amino acids 357-373 with Nterminally added lysine).

Immunogène

synthetic peptide corresponding to the C-terminal region of mouse glutamine synthetase (GS) (amino acids 357-373. This sequence is identical in human, bovine, rat, hamster, and pig GS and highly conserved chicken
Gs (single amino acid substitution).

Application


Immunoblotting: a minimum working antibody dilution of 1:10,000 is determined using a rat brain cytosolic fraction extract.
Immunohistochemistry: a minimum working antibody dilution of 1:10,000 is determined using formalin-fixed, paraffin-embedded sections of rat brain.
Anti-Glutamine Synthetase antibody has been used for the detection and localization of GS by immunoblotting and immunohistochemistry.

Actions biochimiques/physiologiques

Glutamine synthetase (GS) catalyzes the amidation of glutamate to form glutamine. In the brain, GS is considered as a key enzyme, participating in recycling of the excitatory neurotransmitter glutamate released from neurons and termination of the neurotransmitter signal, as well as in ammonia detoxification. GS activity is a useful marker for astrocytes and an important differentiation feature in the retina. Upregulation of GS is a hallmark of reactive astrocytosis and GS activity level increases following spinal cord injury. The GS expression in astrocytes is diminished in brains affected by Alzheimer′s disease, particularly in the vicinity of senile plaques. GS is upregulated in a subset of human hepatocellular carcinomas, suggesting that its expression may be related to tumor recurrence, since tumors expressing GS are independent of the extracellular glutamine supply.

Forme physique

Solution in 0.01 M phosphate buffered saline, pH 7.4, containing 15 mM sodium azide

Clause de non-responsabilité

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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Code de la classe de stockage

12 - Non Combustible Liquids

Classe de danger pour l'eau (WGK)

WGK 2

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable


Certificats d'analyse (COA)

Recherchez un Certificats d'analyse (COA) en saisissant le numéro de lot du produit. Les numéros de lot figurent sur l'étiquette du produit après les mots "Lot" ou "Batch".

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Consulter la Bibliothèque de documents

Ying Zhu et al.
mBio, 8(4) (2017-08-16)
While glutamine is a nonessential amino acid that can be synthesized from glucose, some cancer cells primarily depend on glutamine for their growth, proliferation, and survival. Numerous types of cancer also depend on asparagine for cell proliferation. The underlying mechanisms
Effects of bevacizumab (Avastin) on retinal cells in organotypic culture
Kaempf S, et al.
Investigative Ophthalmology & Visual Science, 49(7), 3164-3171 (2008)
Virawudh Soontornniyomkij et al.
Current aging science, 9(4), 301-309 (2016-04-14)
High-Fat Diet (HFD)-induced obesity may promote agerelated memory impairment via disturbances of ammonia-glutamine metabolism. We studied the effects of age and long-term HFD exposure on Glutamine Synthetase (GS) expression in the liver and hippocampus and recognition memory in mice. Adult
Primary culture of trigeminal satellite glial cells: a cell-based platform to study morphology and function of peripheral glia
Poulsen JN, et al.
International Journal of Physiology, Pathophysiology and Pharmacology, 6(1), 1-1 (2014)
Ala Moshiri et al.
Investigative ophthalmology & visual science, 58(3), 1709-1718 (2017-03-23)
Small guanosine triphosphatase (GTPase) ADP-ribosylation factors (Arfs) regulate membrane traffic and actin reorganization under the control of GTPase-activating proteins (GAPs). Arap1 is an Arf-directed GAP that inhibits the trafficking of epidermal growth factor receptor (EGFR) to the early endosome, but

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