PBK KO cell lysate available now. KO validated by Western blot. Free of charge wild type control included. Knockout achieved by using CRISPR/Cas9, Homozygous: 1 bp deletion in exon 2.
CT84, Cancer/testis antigen 84, Epididymis luminal protein 164, FLJ14385, HEL164, Lymphokine-activated killer T-cell-originated protein kinase, MAPKK-like protein kinase, Nori-3, PBK, PDZ-binding kinase, SPK, Serine/threonine protein kinase, Spermatogenesis-related protein kinase, T-LAK cell-originated protein kinase, TOPK_HUMAN
PBK KO cell lysate available now. KO validated by Western blot. Free of charge wild type control included. Knockout achieved by using CRISPR/Cas9, Homozygous: 1 bp deletion in exon 2.
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Lysate preparation: Our lysates are made using RIPA buffer to which we add a protease inhibitor cocktail and phosphatase inhibitor cocktail (ratio: 300:100:10). This means that the protein of interest is denatured. If you require a native form of the protein please use the live cell version. Please refer to our lysis protocol for further details on how our lysates are prepared.
User storage instructions: Lyophilizate may be stored at 4°C. After reconstitution, store at -20°C for short-term storage or -80°C for long-term storage.
This product is subject to limited use licenses from The Broad Institute and ERS Genomics Limited, and is developed with patented technology. For full details of the limited use licenses and relevant patents please refer to our limited use license and patent pages.
PBK/SPK also known as PDZ-binding kinase or Cdc2-related kinase is a serine/threonine protein kinase with an approximate molecular weight of 47 kDa. This protein is involved in cell division playing an important role in mitotic processes. PBK/SPK is expressed in various tissues including significant levels in testis and placenta often in proliferating cell types. It also exhibits higher expression in cancerous tissues suggesting a role in tumorigenesis.
PBK/SPK facilitates cell cycle progression and cellular proliferation. This protein is not typically part of larger complexes but it partners with other molecules during cell division to ensure proper mitotic spindle formation and chromosome segregation. Its expression levels increase during the G2/M phase of the cell cycle indicating its involvement in cell cycle regulation. In cancer it often shows overexpression contributing to unregulated proliferation of cancer cells.
PBK/SPK is associated with critical cell division pathways such as the MAPK signaling pathway. This involvement impacts cellular responses to growth signals and stress. PBK can phosphorylate and interact with proteins like p38 MAPK which further modulates signal transduction related to cellular growth and survival. Through these pathways PBK/SPK helps manage the balance between cell division and apoptosis particularly under stress conditions.
PBK/SPK has strong correlations with cancer especially glioblastoma and cervical cancer. Overexpression of PBK often links to poor prognosis in these conditions. In cancerous settings PBK interacts with proteins such as p53 and c-Myc influencing tumor progression and resistance to therapy. PBK can modulate oncogenic pathways providing a potential target for therapeutic intervention in tumor proliferation and survival.
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Lane 1: Wild-type HEK-293T cell lysate (20µg)
Lane 2: PBK knockout HEK-293T cell lysate (20µg)
Lanes 1- 2: Merged signal (red and green). Green - Anti-PBK/SPK antibody [EPR21982] ab236871 observed at 40 kDa. Red - loading control Anti-alpha Tubulin antibody [DM1A] - Loading Control ab7291 observed at 50 kDa.
Anti-PBK/SPK antibody [EPR21982] ab236871 Anti-PBK/SPK antibody [EPR21982] was shown to specifically react with PBK/SPK in wild-type HEK-293T cells in western blot. Loss of signal was observed when knockout cell line Human PBK (SPK) knockout HEK-293T cell line ab266827 (knockout cell lysate ab257575) was used. Wild-type and PBK/SPK knockout samples were subjected to SDS-PAGE. Membrane was blocked for 1 hour at room temperature in 0.1% TBST with 3% non-fat dried milk. Anti-PBK/SPK antibody [EPR21982] ab236871 and Anti-alpha Tubulin antibody [DM1A] - Loading Control (Anti-alpha Tubulin antibody [DM1A] - Loading Control ab7291) were incubated overnight at 4°C at 1 in 1000 dilution and 1 in 20000 dilution respectively. Blots were developed with Goat anti-Rabbit IgG H&L (IRDye® 800CW) preadsorbed (Goat anti-Rabbit IgG H&L (IRDye® 800CW) preadsorbed ab216773) and Goat anti-Mouse IgG H&L (IRDye® 680RD) preadsorbed (Goat anti-Mouse IgG H&L (IRDye® 680RD) preadsorbed ab216776) secondary antibodies at 1 in 20000 dilution for 1 hour at room temperature before imaging.
All lanes: Western blot - Anti-PBK/SPK antibody [EPR21982] (Anti-PBK/SPK antibody [EPR21982] ab236871) at 1/1000 dilution
Lane 1: Wild-type HEK-293T cell lysate at 20 µg
Lane 2: PBK knockout HEK-293T cell lysate at 20 µg
Lane 2: Western blot - Human PBK (SPK) knockout HEK-293T cell line (Human PBK (SPK) knockout HEK-293T cell line ab266827)
Performed under reducing conditions.
Predicted band size: 36 kDa
Observed band size: 40 kDa
Lane 1: Wild-type HEK-293T cell lysate (20µg)
Lane 2: PBK knockout HEK-293T cell lysate (20µg)
Lanes 1- 2: Merged signal (red and green). Green - Anti-PBK/SPK antibody [EP2520Y] ab75987 observed at 40 kDa. Red - loading control Anti-alpha Tubulin antibody [DM1A] - Loading Control ab7291 observed at 50 kDa.
Anti-PBK/SPK antibody [EP2520Y] ab75987 Anti-PBK/SPK antibody [EP2520Y] was shown to specifically react with PBK/SPK in wild-type HEK-293T cells in western blot. Loss of signal was observed when knockout cell line Human PBK (SPK) knockout HEK-293T cell line ab266827 (knockout cell lysate ab257575) was used. Wild-type and PBK/SPK knockout samples were subjected to SDS-PAGE. Membrane was blocked for 1 hour at room temperature in 0.1% TBST with 3% non-fat dried milk. Anti-PBK/SPK antibody [EP2520Y] ab75987 and Anti-alpha Tubulin antibody [DM1A] - Loading Control (Anti-alpha Tubulin antibody [DM1A] - Loading Control ab7291) were incubated overnight at 4°C at 1 in 100000 dilution and 1 in 20000 dilution respectively. Blots were developed with Goat anti-Rabbit IgG H&L (IRDye® 800CW) preadsorbed (Goat anti-Rabbit IgG H&L (IRDye® 800CW) preadsorbed ab216773) and Goat anti-Mouse IgG H&L (IRDye® 680RD) preadsorbed (Goat anti-Mouse IgG H&L (IRDye® 680RD) preadsorbed ab216776) secondary antibodies at 1 in 20000 dilution for 1 hour at room temperature before imaging.
All lanes: Western blot - Anti-PBK/SPK antibody [EP2520Y] (Anti-PBK/SPK antibody [EP2520Y] ab75987) at 1/100000 dilution
Lane 1: Wild-type HEK-293T cell lysate at 20 µg
Lane 2: PBK knockout HEK-293T cell lysate at 20 µg
Lane 2: Western blot - Human PBK (SPK) knockout HEK-293T cell line (Human PBK (SPK) knockout HEK-293T cell line ab266827)
Performed under reducing conditions.
Predicted band size: 27 kDa, 36 kDa
Observed band size: 40 kDa
Homozygous: 1 bp deletion in exon 2
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