产品编号 |
产品名称 |
产品包装 |
产品价格 |
P5183-1mg |
Recombinant Human IL-13, Variant |
1mg |
26773.00元 |
Species
|
Gene ID
|
Accession
|
Source
|
Length
|
MW
|
Tag
|
Human
|
3596
|
P35225
|
E. coli
|
112aa
|
12.3kDa
|
-
|
About this protein
|
Name
|
Recombinant Human IL-13, Variant (Recombinant Human Interleukin-13, Variant; rHuIL-13, Variant);重组人白细胞介素13变体
|
Synonyms
|
IL-13; P600
|
Purity
|
>97% by SDS-PAGE and HPLC analyses.
|
Biological Activity
|
Fully biologically active when compared to standard. The ED50 as determined by a cell proliferation assay using human TF-1 cells is less than 0.5ng/ml, corresponding to a specific activity of >2.0×106IU/mg.
|
Physical Appearance
|
Sterile Filtered lyophilized (freeze-dried) liquid-like powder.
|
Formulation
|
Lyophilized from a 0.2μm filtered concentrated solution in PBS, pH7.2, with 5% trehalose.
|
Endotoxin
|
Less than 1EU/μg of rHuIL-13, Variant as determined by LAL method.
|
Reconstitution
|
We 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.
|
Category
|
Cytokine
|
Background
|
Human Interleukin-13 (IL-13) is expressed by the IL13 gene located on the chromosome 5. IL-13 is a 132 amino acid protein containing a proposed 20 amino acid signal peptide, and shares approximately 30% amino acid sequence homology to human IL-4. Additionally, the two cytokines exhibit overlapping biological activities. Human IL-13 is produced by activated Th0, Th1-like Th2-like and CD8 T cells. Similarly to IL-4, IL-13 has multiple effects on the differentiation and functions of monocytes/macrophages. IL-13 can suppress the cytotoxic functions of monocytes/macrophages.
IL-13 variant is a natural variant of IL-13 and has a Q instead of R112 of wild type, which associated with increased risk for asthma development and at homozygosity associated with higher levels of serum total IgE in some allergic rhinitis patients.
|
Amino Acid Sequence
|
GPVPPSTALR ELIEELVNIT QNQKAPLCNG SMVWSINLTA GMYCAALESL INVSGCSAIE KTQRMLSGFC PHKVSAGQFS SLHVRDTKIE VAQFVKDLLL HLKKLFREGQ FN
|
包装清单:
产品编号
|
产品名称
|
包装
|
P5183-2μg
|
Recombinant Human IL-13, Variant
|
2μg
|
P5183-10μg
|
Recombinant Human IL-13, Variant
|
10μg
|
P5183-100μg
|
Recombinant Human IL-13, Variant
|
100μg
|
P5183-1mg
|
Recombinant Human IL-13, Variant
|
1mg
|
-
|
说明书
|
1份
|
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。
本产品在冻干时添加了海藻糖作为保护剂,此时冻干后本产品看起来仍然像是液体,属于正常现象。在冻干工艺上,海藻糖作为常用的冻干保护剂,可显著阻止蛋白质二级结构的改变,防止冻干过程中的蛋白变性。
本产品仅限于专业人员的科学研究用,不得用于临床诊断或治疗,不得用于食品或药品,不得存放于普通住宅内。
为了您的安全和健康,请穿实验服并戴一次性手套操作。