P6425-1mg
Recombinant Rat Midkine
1mg
15611.00元
Species
Gene ID
Accession
Source
Length
MW
Tag
Rat
81517
Q9R1S9
E. coli
120aa
13.2kDa
-
Name
Recombinant Rat Midkine (Recombinant Rat Midkine; rRtMidkine);重组大鼠中期因子
Synonyms
ARAP; MDK; MEK; MK1; NEGF2; Amphiregulin-associated protein; Midgestation and kidney protein; midkine; midkine (neurite growth-promoting factor 2); MK1; MKARAP; NEGF2FLJ27379; Neurite outgrowth-promoting factor 2; Neurite outgrowth-promoting protein
Purity
>97% by SDS-PAGE and HPLC analyses.
Biological Activity
Fully biologically active when compared to standard. The biological activity determined by a chemotaxis bioassay using human neutrophils is in a concentration range of 10-100ng/ml.
Physical Appearance
Sterile Filtered White lyophilized (freeze-dried) powder.
Formulation
Lyophilized from a 0.2μm filtered concentrated solution in PBS, pH7.4.
Endotoxin
Less than 0.1EU/μg of rRtMidkine 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.
Background
Midkine, also named MK, MK1, NEGF 2, is belonging to the neurotrophic and developmentally-regulated heparin-binding molecules family and it is encoded by the MDK gene. Midkine includes five intrachain disulfide bonds which held two domains and there are three antiparallel beta-sheets in each domain. A chondroitin sulfate proteoglycan, protein-tyrosine phosphatase zeta (PTPzeta), is a receptor for MK. MK promotes the growth, survival, and migration of various cells, and plays roles in neurogenesis and epithelial mesenchymal interactions during organogenesis. The predicted molecular weight is approximately 13.2kDa, based on a mature peptide length of 118 amino acid residues in the mouse and 121 amino acid residues in the human. Mature rat midkine shares 99% and 91%a.a. sequence identity with human and murine midkine, respectively.
Amino Acid Sequence
VAKKKDKVKK GSECSEWTWG PCTPSSKDCG MGFREGTCGA QTQRIHCKVP CNWKKEFGAD CKYKFESWGA CDGSTGTKAR QGTLKKARYN AQCQETIRVT KPCTSKTKSK AKAKKGKGKD
包装清单:
P6425-5μg
Recombinant Rat Midkine
5μg
P6425-20μg
Recombinant Rat Midkine
20μg
P6425-100μg
Recombinant Rat Midkine
100μg
P6425-1mg
Recombinant Rat Midkine
1mg
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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