Human/Rat PKM1/2 Antibody Summary
Ser2-Pro531
Accession # P14618-1
Applications
Please Note: Optimal dilutions should be determined by each laboratory for each application. General Protocols are available in the Technical Information section on our website.
Scientific Data
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PKM2 in WI‑38 Human Cell Line. PKM2 was detected in immersion fixed WI-38 human lung fibroblast cell line using Mouse Anti-Human/Rat PKM1/2 Monoclonal Antibody (Catalog # MAB7244) at 10 µg/mL for 3 hours at room temperature. Cells were stained using the NorthernLights™ 557-conjugated Anti-Mouse IgG Secondary Antibody (red; NL007) and counterstained with DAPI (blue). Specific staining was localized to cytoplasm. View our protocol for Fluorescent ICC Staining of Cells on Coverslips.
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PKM2 in Human Prostate. PKM2 was detected in immersion fixed paraffin-embedded sections of human prostate using Mouse Anti-Human/Rat PKM1/2 Monoclonal Antibody (Catalog # MAB7244) at 1 µg/mL overnight at 4 °C. Tissue was stained using the Anti-Mouse HRP-DAB Cell & Tissue Staining Kit (brown; CTS002) and counterstained with hematoxylin (blue). Specific staining was localized to epithelial cell cytoplasm. View our protocol for Chromogenic IHC Staining of Paraffin-embedded Tissue Sections.
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PKM2 in Rat Skeletal Muscle. PKM2 was detected in perfusion fixed frozen sections of rat skeletal muscle using Mouse Anti-Human/Rat PKM1/2 Monoclonal Antibody (Catalog # MAB7244) at 8 µg/mL overnight at 4 °C. Tissue was stained using the NorthernLights™ 557-conjugated Anti-Mouse IgG Secondary Antibody (red; NL007) and counterstained with DAPI (blue). Specific staining was localized to epithelial cell cytoplasm. View our protocol for Fluorescent IHC Staining of Frozen Tissue Sections.
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Detection of Human PKM2 by Simple WesternTM. Simple Western lane view shows lysates of HeLa human cervical epithelial carcinoma cell line, loaded at 0.2 mg/mL. A specific band was detected for PKM2 at approximately 61 kDa (as indicated) using 10 µg/mL of Mouse Anti-Human/Rat PKM1/2 Monoclonal Antibody (Catalog # MAB7244). This experiment was conducted under reducing conditions and using the 12-230 kDa separation system.
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Western Blot Shows Human PKM2 Specificity by Using Knockout Cell Line. Western blot shows lysates of HeLa human cervical epithelial carcinoma parental cell line and PKM2 knockout HeLa cell line (KO). PVDF membrane was probed with 1 µg/mL of Mouse Anti-Human/Rat PKM1/2 Monoclonal Antibody (Catalog # MAB7244) followed by HRP-conjugated Anti-Mouse IgG Secondary Antibody (Catalog # HAF018). A specific band was detected for PKM2 at approximately 60 kDa (as indicated) in the parental HeLa cell line, but is not detectable in knockout HeLa cell line. GAPDH (AF5718) is shown as a loading control.. This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 1.
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PKM2 Specificity is Shown by Immunocytochemistry in Knockout Cell Line. PKM2 was detected in immersion fixed HeLa human cervical epithelial carcinoma cell line but is not detected in PKM2 knockout (KO) HeLa Human Cell Line cell line using Mouse Anti-Human/Rat PKM1/2 Monoclonal Antibody (Catalog # MAB7244) at 3 µg/mL for 3 hours at room temperature. Cells were stained using the NorthernLights™ 493-conjugated Anti-Mouse IgG Secondary Antibody (green; NL009) and counterstained with DAPI (blue). Specific staining was localized to cytoplasm. View our protocol for Fluorescent ICC Staining of Cells on Coverslips.
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Detection of Human PKM2 by Western Blot. Western blot shows lysates of U‑87 MG human glioblastoma/astrocytoma cell line, A549 human lung carcinoma cell line, HeLa human cervical epithelial carcinoma cell line, human skeletal muscle. PVDF membrane was probed with 0.25 µg/mL of Mouse Anti-Human/Rat PKM2 Monoclonal Antibody (Catalog # MAB7244) followed by HRP-conjugated Anti-Mouse IgG Secondary Antibody (HAF018). A specific band was detected for PKM2 at approximately 60 kDa (as indicated). This experiment was conducted under reducing conditions and using Western Blot Buffer Group 1.
Preparation and Storage
- 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.
Background: PKM2
PKM2 (Pyruvate Kinase isoenzyme M2; also p58, OIP3, THBP1 and CTHBP) is a 58-60 kDa member of the PK family of enzymes. It is widely expressed, being found both intracellularly and in blood, and represents the more common splice variant of the PKM gene. PKM2 generates ATP and pyruvate by catalyzing the transfer of a phosphoryl group from PEP to ADP. Thus, when active, PKM2 promotes energy production and glycolysis. PKM2 exists as a marginally active monomer, with full activity achieved through homotetramerization. Notably, in tumor cells, select oncogenes appear to induce PKM2 homodimerization which limits PKM2 activity. PKM2 is known to be regulated by the binding of T3 and Fru-1,6-bisP. Human PKM2 is 531 amino acids (aa) in length. It contains a catalytic region (aa 43‑527) plus four utilized Ser/Thr and Tyr phosphorylation sites, respectively. PKM1 is another PKM gene splice variant that shows a 45 aa substitution for
aa 389‑433 of PKM2. This variant shows limited expression (striated muscle) and hyperbolic Michaelis-Menten kinetics. There are additional isoform variants of PKM2 that show either a deletion of aa 59‑132, or a 67 aa substitution for aa 1‑82. Over aa 434‑531, human PKM2 shares 95% aa sequence identity with mouse PKM2.
Product Datasheets
Citation for Human/Rat PKM1/2 Antibody
R&D Systems personnel manually curate a database that contains references using R&D Systems products. The data collected includes not only links to publications in PubMed, but also provides information about sample types, species, and experimental conditions.
1 Citation: Showing 1 - 1
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Rab25 acts as an oncogene and participates in the regulation of aerobic glycolysis via PKM2 in gastric adenocarcinoma
Authors: Tianyu Zheng, Linyi Huang, Ning Chen, Huiping Xue, Peihua Ni, Gang Huang
Translational Cancer Research
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