Midkine was detected in immersion fixed paraffin-embedded sections of human ovarian array using Goat Anti-Human Midkine Antigen Affinity-purified Polyclonal Antibody (Catalog # AF-258-PB) at 10 µg/mL overnight at 4 ...read more
Western blot shows lysates of SH‑SY5Y human neuroblastoma cell line. PVDF membrane was probed with 2 µg/mL of Goat Anti-Human Midkine Antigen Affinity-purified Polyclonal Antibody (Catalog # AF-258-PB) ...read more
Simple Western lane view shows lysates of SH‑SY5Y human neuroblastoma cell line, loaded at 0.2 mg/mL. A specific band was detected for Midkine at approximately 26 kDa (as indicated) using 100 µg/mL of Goat ...read more
Midkine was detected in immersion fixed paraffin-embedded sections of human prostate using Goat Anti-Human Midkine Antigen Affinity-purified Polyclonal Antibody (Catalog # AF‑258‑PB) at 10 µg/mL overnight at 4 °C. ...read more
E. coli-derived recombinant human Midkine Lys23-Asp143 Accession # P21741
Detects human Midkine in direct ELISAs and Western blots. In direct ELISAs, approximately 10% cross-reactivity with recombinant mouse Midkine is observed, and less than 1% cross-reactivity with recombinant human Pleiotrophin is observed.
Test in a species/application not listed above to receive a full credit towards a future purchase.
Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
12 months from date of receipt, -20 to -70 °C as supplied.
1 month, 2 to 8 °C under sterile conditions after reconstitution.
6 months, -20 to -70 °C under sterile conditions after reconstitution.
Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied as a 0.2 µm filtered solution in PBS.
Reconstitute at 0.2 mg/mL in sterile PBS.
This product is produced by and ships from R&D Systems, Inc., a Bio-Techne brand.
Alternate Names for Midkine Antibody [Unconjugated]
Midgestation and kidney protein
midkine (neurite growth-promoting factor 2)
Neurite outgrowth-promoting factor 2
Neurite outgrowth-promoting protein
Midkine (MK) is a 15 kDa heparin-binding molecule originally cloned during a search for genes preferentially transcribed during retinoic acid (RA)-induced differentiation. Midkine belongs to a family of neurotrophic and developmentally-regulated heparin-binding molecules consisting of midkine, pleiotrophin (PTN/HBNF/OSF-1/HNGF-8) and the avian midkine homolog, RI-HB (for retinoic acid-inducible heparin-binding protein).
Midkine is a highly basic, nonglycosylated polypeptide that contains five intrachain disulfide bonds. The predicted molecular weight is approximately 13.3 kDa, based on a mature peptide length of 118 amino acid residues in the mouse and 121 amino acid residues in the human. Across species, MK shows 87% identity between the human and murine proteins. Between family members, human MK is approximately 50% identical to human PTN, with conservation of all 10 cysteines. Initial structure-function studies indicate that the C-terminal half of MK contains the principal heparin-binding site plus the molecule’s antigenicity and neurite-promoting sequences; while both the C- and N-termini are necessary for the molecule’s neurotrophic effects. Cells known to produce MK include endothelial cells, fetal astrocytes, renal proximal tubule epithelial cells and Wilms’ (kidney) tumor cells. MK has also been identified in the senile plaques of patients with Alzheimer’s disease. The pattern of expression of midkine during development strongly suggests a role for this factor both in epithelial-mesenchymal interactions and in development of the nervous system.
Bohlen, P. and I. Kovesdi (1991) Prog. Growth Factor Res. 3:143.
Muramatsu, T. (1993) Int. J. Dev. Biol. 37:183.
This product is for research use only and is not approved for use in humans or in clinical diagnosis. Primary Antibodies are guaranteed for 1 year from date of receipt.
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