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Human Semaphorin 3A / SEMA3A Protein, Fc Tag

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SEA-H5257-100ug
¥4200.00
SEA-H5257-1mg
¥25200.00
合计0件 产品金额¥ 0

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  • 分子别名(Synonym)

    Semaphorin 3A,(semaphorin) 3A,coll-1,collapsin 1,Hsema-I,Hsema-III,MGC133243,sema domain,immunoglobulin domain (Ig),short basic domain,secreted,Sema III,SEMA1, Sema3A,SEMAD,SEMAIII,SEMAL,Semaphorin 3A,semaphorin D,Semaphorin III,semaphorin L,semaphorin-3A,SemD,SEMA3A

  • 表达区间及表达系统(Source)

    Human Semaphorin 3A, Fc Tag (SEA-H5257) is expressed from human 293 cells (HEK293). It contains AA Lys 26 - Val 771 (Accession # Q14563-1 (R552A, R555A)).

    Request for sequence
  • 蛋白结构(Molecular Characterization)

    Semaphorin 3A Structure

    This protein carries a human IgG1 Fc tag at the N-terminus. The protein has a calculated MW of 112.4 kDa. Besides Furin cleavage site (Arg 555 - Gln 556), the protein also has an unknown protease cleavage site at Leu 709 - Ile 710. The protein migrates as 100 kDa and 115 kDa when calibrated against Star Ribbon Pre-stained Protein Marker 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)

    95% as determined by SDS-PAGE.

  • 制剂(Formulation)

    Lyophilized from 0.22 μm filtered solution in PBS, pH7.4 with trehalose as protectant.

    Contact us for customized product form or formulation.

  • 重构方法(Reconstitution)

    Please see Certificate of Analysis for specific instructions.

    For best performance, we strongly recommend you to follow the reconstitution protocol provided in the CoA.

  • 存储(Storage)

    For long term storage, the product should be stored at lyophilized state at -20°C or lower.

    Please avoid repeated freeze-thaw cycles.

    This product is stable after storage at:

    1. -20°C to -70°C for 12 months in lyophilized state;
    2. -70°C for 3 months under sterile conditions after reconstitution.
  • 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)

    Semaphorin 3A SDS-PAGE

    Human Semaphorin 3A, Fc Tag on SDS-PAGE under reducing (R) condition. The gel was stained with Coomassie Blue. The purity of the protein is greater than 95%undefined.

  • 活性(Bioactivity)-ELISA

     Semaphorin 3A ELISA

    Immobilized Biotinylated Human Neuropilin-1, His,Avitag (Cat. No. NR1-H82E3) at 1 μg/mL (100 μL/well) on streptavidin (Cat. No. STN-N5116) precoated (0.5 μg/well) plate can bind Human Semaphorin 3A, Fc Tag (Cat. No. SEA-H5257) with a linear range of 5-156 ng/mL (QC tested).

    Protocol

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背景介绍

Semaphorin-3A (SEMA3A) is also known as Semaphorin III, which belongs to the semaphorin family. SEMA3A contains 1 Ig-like C2-type (immunoglobulin-like) domain, one PSI domain amd one sema domain. Semaphorin-3A is a secreted proteins, or chemorepulser, secreted by surrounding tissues to guide migrating cells and axons in the developing nervous system of an organism which is critical for the precise formation of neurons and vasculature. SEMA3A can function as either a chemorepulsive agent, inhibiting axonal outgrowth, or as a chemoattractive agent, stimulating the growth of apical dendrites. In both cases, the protein is vital for normal neuronal pattern development. Increased expression of SEMA3A is associated with schizophrenia and is seen in a variety of human tumor cell lines. Also, aberrant release of this protein is associated with the progression of Alzheimer's disease.

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