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Codon optimization significantly enhanced the expression of human 37-kDa iLRP in Escherichia coli

    文献作者：Bainan Liu, Qianqian Kong, Dong Zhang, Lingli Yan   《3 Biotech》
    ABSTRACTS
    37-kDa immature laminin receptor protein (iLRP), the precursor of 67-kDa laminin receptor protein (LRP), is overexpressed on the surface of most cancer cells and recognized as a universal tumor antigen. The role makes it a potential target for cancer immunotherapy, which has been well-studied. Our study aimed to produce high quality of human iLRP in bacteria so that the needs in research of its clinical application could be met. The powerful system for heterologous protein expression, pET system was used. Two types of DNA sequences encoding the same amino acid sequences were separately cloned into the vector pET30a(+). One of the resulting vectors includes the wild-type iLRP, and other one includes the codon-optimized iLRP. The expression by both genes was then compared in Escherichia coli BL21(DE3). Our results revealed that the performance of codon optimization was crucial for the expression of human iLRP in Escherichia coli. The yield was significantly enhanced up to 300 mg/L of bacterial culture by this approach.
    KEY WORDS
    Codon optimization Immature laminin receptor protein Heterologous expression pET system 
    SCREENSHOT

    RELATED PRODUCTS
    Plasmids pUC57 and pET30a(+) for cloning and expression are from ChinaPeptides, Shanghai, China.
    CHAINING
    https://link.springer.com/article/10.1007%2Fs13205-018-1234-y
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CAS:85466-18-8|Thymopoietin II (32-35)|RKDV

Contact： Liven Qian(钱叶华)-Custom Peptide Mobile: 13761298676（微信） Email：cps037@chinapeptides.net QQ：2880526724 ChinaPeptides Co., Ltd./强耀生物科技有限公司 Name Thymopoietin II (32-35) Code [85466-18-8] The alias Thymopoietin II (32-35) Sequence (single letter abbreviation) RKDV Sequence (three-letter abbreviation) H-Arg-Lys-Asp-Val-OH (trifluoroacetate salt) A basic description TP-4 and TP-3; shortest active thymopoietin II fragments described that exhibit potent immunoregulatory properties in vitro and in vivo. solubility The molecular weight 516.6 Chemical formula C21H40N8O7 The purity 80%，90%，95%，98%，99% Weight 1mg,5mg,10mg,50mg,100mg,1g Storage conditions Store at -20°C. Keep tightly closed. Store in a cool dry place. Number of Residues: 4 1-Letter Code: RKDV 3-Letter Code: Arg-Lys-Asp-Val Molecular weight (Mr): 516.6 g/mol Isoelectric point: 10.1 Net charge at pH 7.0: 1.0 Average hydrophilicity: 1.9 Ratio of hydrophilic residues / total number of residues...
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β-Amyloid (1-42), human|DAEFRHDSGYEVHHQKLVFFAEDVGSNKGAIIGLMVGGVVIA

Contact： Liven Qian(钱叶华)-Custom Peptide Mobile: 13761298676（微信） Email：cps037@chinapeptides.net QQ：2880526724 ChinaPeptides Co., Ltd./强耀生物科技有限公司   04010011526 β-Amyloid (1-42), human DAEFRHDSGYEVHHQKLVFFAEDV GSNKGAIIGLMVGGVVIA Number of Residues: 42 1-Letter Code: DAEFRHDSGYEVHHQKLVFFAEDVGSNKGAIIGLMVGGVVIA 3-Letter Code: Asp-Ala-Glu-Phe-Arg-His-Asp-Ser-Gly-Tyr-Glu-Val-His-His-Gln-Lys-Leu-Val-Phe-Phe-Ala-Glu-Asp-Val-Gly-Ser-Asn-Lys-Gly-Ala-Ile-Ile-Gly-Leu-Met-Val-Gly-Gly-Val-Val-Ile-Ala Molecular weight (Mr): 4513.12 g/mol Isoelectric point: 5.8 Net charge at pH 7.0: -1.7 Average hydrophilicity: -0.1 Ratio of hydrophilic residues / total number of residues: 31 %    Name beta-Amyloid (1-42), recombinant Code   The alias beta-Amyloid (1-42), recombinant Sequence (single letter abbreviation) DAEFRHDSGYEVHHQKLVFFAEDVGSNKGAIIGLMVGGVVIA Sequence (three-letter abbreviation) H-Asp-Ala-Glu-Phe-Arg-His-Asp-Ser-Gly-Tyr-Glu-Val-...
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The therapeutic effect of anti-CD52 treatment in murine experimental autoimmune encephalomyelitis is associated with altered IL-33 and ST2 expression levels

文献作者：Mark Barbour, Rachel Wood, Shehla U.Hridi, Chelsey Wilson, Grant McKay, Trevor J.Bushell, Hui-Rong Jiang   《Journal of Neuroimmunology》 ABSTRACTS Experimental autoimmune encephalomyelitis  (EAE) mice were administered with murine anti-CD52  antibody  to investigate its therapeutic effect and whether the treatment modulates IL-33 and ST2 expression. EAE severity and  central nervous system  (CNS) inflammation were reduced following the treatment, which was accompanied by peripheral  T and B lymphocyte  depletion and reduced production of various  cytokines  including IL-33, while sST2 was increased. In spinal cords of EAE mice, while the number of IL-33 +  cells remained unchanged, the extracellular level of IL-33 protein was significantly reduced in anti-CD52 antibody treated mice compared with controls. Furthermore the number of ST2 +  cells in the spinal cord of treated EAE mice was  downregulated ...
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