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Human GAD1 / GAD67 Protein, His Tag

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  • 分子别名（Synonym）

    GAD1,GAD67,Glutamate decarboxylase 1

  • 表达区间及表达系统（Source）

    Human GAD1, His Tag (GA1-H5543) is expressed from Baculovirus-Insect cells. It contains AA Met 1 - Leu 594 (Accession # Q99259-1).

    Predicted N-terminus: Met 1

    Request for sequence

  • 蛋白结构（Molecular Characterization）

    GAD1 Structure

    This protein carries a polyhistidine tag at the N-terminus.

    The protein has a calculated MW of 68.8 kDa. The protein migrates as 66 kDa, 90 kDa and >116 kDa under reducing (R) condition (SDS-PAGE) due to glycosylation.

  • 偶联（Conjugate）

    Unconjugated

  • 内毒素（Endotoxin）

    Less than 1.0 EU per μg by the LAL method.

  • 纯度（Purity）

    85% as determined by SDS-PAGE.

  • 制剂（Formulation）

    Supplied as 0.2 μm filtered solution in 20 mM Tris, 500 mM Nacl, pH8.5 with glycerol as protectant.

    Contact us for customized product form or formulation.

  • 运输（Shipping）

    This product is supplied and shipped with dry ice, please inquire the shipping cost.

  • 存储（Storage）

    Please avoid repeated freeze-thaw cycles.

    This product is stable after storage at:

    1. The product MUST be stored at -70°C or lower upon receipt;
    2. -70°C for 3 months under sterile conditions.

  • 质量管理控制体系（QMS）

    1. 质量管理体系（ISO, GMP）
    2. 质量优势
    3. 质控流程

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  • 电泳（SDS-PAGE）

    GAD1 SDS-PAGE

    Human GAD1, His Tag on SDS-PAGE under reducing (R) condition. The gel was stained with Coomassie Blue. The purity of the protein is greater than 85%.

  • 活性（Bioactivity）-ELISA

    GAD1 ELISA

    Immobilized Human GAD1, His Tag (Cat. No. GA1-H5543) at 1 μg/mL (100 μL/well) can bind Anti-GAD1 Antibody with a linear range of 1-8 ng/mL (QC tested).

    Protocol

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背景介绍

Glutamate decarboxylase or glutamic acid decarboxylase (GAD) is an enzyme that catalyzes the decarboxylation of glutamate to gamma-aminobutyric acid (GABA), the major inhibitory transmitter in higher brain regions, and putative paracrine hormone in pancreatic islets. GAD uses pyridoxal-phosphate (PLP) as a cofactor.Two molecular forms of GAD (65 kDa and 67 kDa) are highly conserved and both 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. GAD65 is an ampiphilic, membrane-anchored protein (585 a.a.), and is responsible for vesicular GABA production. GAD67 is cytoplasmic (594 a.a.), and seems to be responsible for significant cytoplasmic GABA production.

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