Recombinant Human IL-4, GMP

¥464
联迈生物
中国/上海
2021-09-06 23:27

上海联迈生物工程有限公司

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上海联迈生物工程有限公司
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产品属性
数量大量
英文名Recombinant Human IL-4, GMP
保质期一年
供应商上海联迈生物工程有限公司
保存条件-20℃或更低温度保存
规格5μg
产品说明
Recombinant Human IL-4, GMP
产品编号产品名称产品包装产品价格
LM7437-5μgRecombinant Human IL-4, GMP5μg464.00
SpeciesGene IDAccessionSourceLengthMWTag
Human3565LM05112E. coli129aa15kDa
About this protein
NameRecombinant Human IL-4, GMP (Recombinant Human Interleukin-4, GMP; rHuIL-4, GMP);重组人白细胞介素4
SynonymsBCDF; BSF1; B cell growth factor 1; B-cell stimulatory factor 1; BCGF1; BCGF-1; binetrakin; Binetrakin; BSF1; BSF-1; IL-4B_cell stimulatory factor 1; interleukin 4; interleukin-4; Lymphocyte stimulatory factor 1; MGC79402; Pitrakinra; pitrakinra
Purity>98% by SDS-PAGE and HPLC analyses.
Biological ActivityFully biologically active when compared to standard. The ED50 as determined by a cell proliferation assay using human TF-1 cells is less than 0.2ng/ml, corresponding to a specific activity of >5.0×106IU/mg.
Physical AppearanceSterile Filtered White lyophilized (freeze-dried) powder.
FormulationLyophilized from a 0.2μm filtered concentrated solution in PBS, pH7.4.
EndotoxinLess than 1EU/μg of rHuIL-4 as determined by LAL method.
ReconstitutionWe recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Reconstitute in sterile distilled water or aqueous buffer containing 0.1% BSA to a concentration of 0.1-1.0mg/ml. Stock solutions should be apportioned into working aliquots and stored at ≤-20℃. Further dilutions should be made in appropriate buffered solutions.
CategoryCytokine
BackgroundInterleukin-4 (IL-4) is a pleiotropic cytokine that induces differentiation of naive helper T cells (Th0 cells) to Th2 cells and produced by mast cells, activated T cells and bone marrow stromal cells. It has many biological roles, including the stimulation of activated B-cell and T-cell proliferation, and the differentiation of CD4+ T-cells into Th2 cells. It enhances both secretion and cell surface expression of IgE and IgG1 and also regulates the expression of the low affinity Fc receptor for IgE (CD23) on both lymphocytes and monocytes. The human IL-4 has a compact, globular fold, stabilised by 3 disulphide bonds. The human IL-4 shares about 40%a.a. sequence identity with mouse/rat IL-4 and they are species-specific in their activities.Manufactured using all Animal-Free reagents.
Amino Acid SequenceHKCDITLQEI IKTLNSLTEQ KTLCTELTVT DIFAASKNTT EKETFCRAAT VLRQFYSHHE KDTRCLGATA QQFHRHKQLI RFLKRLDRNL WGLAGLNSCP VKEANQSTLE NFLERLKTIM REKYSKCSS
包装清单:
产品编号产品名称包装
LM7437-5μgRecombinant Human IL-4, GMP5μg
LM7437-100μgRecombinant Human IL-4, GMP100μg
LM7437-1mgRecombinant Human IL-4, GMP1mg
-说明书1
保存条件:
-20℃或更低温度保存,至少一年有效。由于蛋白的每次冻融均会引起部分失活,所以首次配制成相应浓度的储存液后(请根据产品简介中Reconstitution一栏的信息配制储存液),须分装后-20℃或更低温度冻存,以避免反复冻融。
注意事项:
由于有些塑料管壁对某些蛋白有较强的吸附作用,溶液中的蛋白很容易粘附在管壁上,并且粘附后的蛋白很难与管壁分离。而载体蛋白(Carrier protein,如0.1% BSA等)的主要作用是预先封闭塑料管壁上的蛋白结合位点,使细胞因子或重组蛋白不会粘附于管壁。所以一定要使用产品简介中Reconstitution一栏的信息配制储存液。
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