SRP3114
Midkine human
recombinant, expressed in E. coli, ≥98% (SDS-PAGE), ≥98% (HPLC), suitable for cell culture
Synonym(s):
MK, NEGF-2
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About This Item
UNSPSC Code:
12352202
NACRES:
NA.32
Recommended Products
biological source
human
recombinant
expressed in E. coli
Assay
≥98% (HPLC)
≥98% (SDS-PAGE)
form
lyophilized
mol wt
13.4 kDa
packaging
pkg of 20 μg
technique(s)
cell culture | mammalian: suitable
impurities
<0.1 EU/μg endotoxin, tested
color
white to off-white
UniProt accession no.
shipped in
wet ice
storage temp.
−20°C
Gene Information
human ... MDK(4192)
General description
Recombinant human Midkine is a 13.4 kDa protein containing 123 amino acid residues including five intra-molecular disulfide bonds.
Application
Midkine human has been used in cell viability assay and cell proliferation assay to determine its association with EMT (epithelial-mesenchymal transition) and gemcitabine resistance in biliary tract cancer.
Biochem/physiol Actions
Midkine (MK) and its functionally-related protein Pleiotrophin are heparin-binding neurotrophic factors that signal through the same receptor, known as anaplastic lymphoma kinase (ALK). MK (midkine) plays an important regulatory role in epithelial-mesenchymal interactions during fetal development and in postnatal lung development. MK chemoattracts embryonic neurons, neutrophils and macrophages. Signaling through the ALK (anaplastic lymphoma kinase) receptor MK exerts angiogenic, growth and survival activities during tumorigenesis. MK is expressed predominantly during midgestation in the brain and several other organs and is down-regulated at birth.
Sequence
VAKKKDKVKK GGPGSECAEW AWGPCTPSSK DCGVGFREGT CGAQTQRIRC RVPCNWKKEF GADCKYKFEN WGACDGGTGT KVRQGTLKKA RYNAQCQETI RVTKPCTPKT KAKAKAKKGK GKD
Physical form
Lyophilized from 0.4x PBS, pH 7.4.
Reconstitution
Centrifuge the vial prior to opening. Reconstitute in water to a concentration of 0.1-1.0 mg/ml. Do not vortex. This solution can be stored at 2-8°C for up to 1 week. For extended storage, it is recommended to further dilute in a buffer containing a carrier protein (example 0.1% BSA) and store in working aliquots at -20°C to -80°C.
Storage Class Code
11 - Combustible Solids
WGK
WGK 3
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
Certificates of Analysis (COA)
Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.
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Effect of midkine on gemcitabine resistance in biliary tract cancer.
Lu Y, et al.
International Journal of Molecular Medicine, 41(4), 2003-2011 (2018)
Jesús Cadenas et al.
Journal of assisted reproduction and genetics, 38(6), 1341-1348 (2021-05-30)
To investigate the effect of different FSH concentrations on human oocyte maturation in vitro and its impact on gene expression of key factors in the surrounding cumulus cells. The study included 32 patients who underwent unilateral oophorectomy for ovarian tissue
Midkine binds to anaplastic lymphoma kinase (ALK) and acts as a growth factor for different cell types.
Stoica G E, et al.
The Journal of Biological Chemistry, 277(39), 35990-35998 (2002)
Midkine regulates pleiotrophin organ-specific gene expression: evidence for transcriptional regulation and functional redundancy within the pleiotrophin/midkine developmental gene family.
Herradon G, et al.
Biochemical and Biophysical Research Communications, 333(3), 714-721 (2005)
The growth factor midkine is modulated by both glucocorticoid and retinoid in fetal lung development.
Kaplan F, et al.
American Journal of Respiratory Cell and Molecular Biology, 28(1), 33-41 (2003)
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