Phosphorylates ZNF622 and may contribute to its redirection to the nucleus. May be involved in the inhibition of spliceosome assembly during mitosis. Seong H.-A., Gil M., Kim K.-T., Kim S.-J., Ha H. Biochem. J. 361:597-604(2002) Vulsteke V., Beullens M., Boudrez A., Keppens S. Biol. Chem. 279:8642-8647(2004)
Host
Rabbit
Immunogen
Peptide sequence around aa.626~630 (I-R-R-Q-R) derived from Human MELK.
Involvement In Disease
Defects in MELK are associated with some cancers, such as brain or breast cancers. Expression is dramatically increased in aggressive undifferentiated tumors, correlating with poor patient outcome in breast and brain cancers, suggesting a role in tumor-initiating cells and proliferation via its function in cell proliferation regulation.
Raised In
Rabbit
Reactivity
Human, Mouse
Regulatory
RUO
Relevance
Phosphorylates ZNF622 and may contribute to its redirection to the nucleus. May be involved in the inhibition of spliceosome assembly during mitosis.
Seong H.-A., Gil M., Kim K.-T., Kim S.-J., Ha H. Biochem. J. 361:597-604(2002) Vulsteke V., Beullens M., Boudrez A., Keppens S. Biol. Chem. 279:8642-8647(2004)
Species
Homo Sapiens (Human)
Specificity
The antibody detects endogenous level of total MELK protein.
Serine/threonine-protein kinase involved in various processes such as cell cycle regulation, self-renewal of stem cells, apoptosis and splicing regulation. Has a broad substrate specificity; phosphorylates BCL2L14, CDC25B, MAP3K5/ASK1 and ZNF622. Acts as an activator of apoptosis by phosphorylating and activating MAP3K5/ASK1. Acts as a regulator of cell cycle, notably by mediating phosphorylation of CDC25B, promoting localization of CDC25B to the centrosome and the spindle poles during mitosis. Plays a key role in cell proliferation and carcinogenesis. Required for proliferation of embryonic and postnatal multipotent neural progenitors. Phosphorylates and inhibits BCL2L14, possibly leading to affect mammary carcinogenesis by mediating inhibition of the pro-apoptotic function of BCL2L14. Also involved in the inhibition of spliceosome assembly during mitosis by phosphorylating ZNF622, thereby contributing to its redirection to the nucleus. May also play a role in primitive hematopoiesis.
Protein Families
Protein kinase superfamily, CAMK Ser/Thr protein kinase family, SNF1 subfamily
Tissue Specificity
Expressed in placenta, kidney, thymus, testis, ovary and intestine.
Buffer
Supplied at 1.0mg/mL in phosphate buffered saline (without Mg2+ and Ca2+), pH 7.4, 150mM NaCl, 0.02% sodium azide and 50% glycerol.
Form
Supplied at 1.0mg/mL in phosphate buffered saline (without Mg2+ and Ca2+), pH 7.4, 150mM NaCl, 0.02% sodium azide and 50% glycerol.
Format
liquid
Purification
Antibodies were produced by immunizing rabbits with synthetic peptide and KLH conjugates. Antibodies were purified by affinity-chromatography using epitope-specific peptide.
Purity
Antibodies were produced by immunizing rabbits with synthetic peptide and KLH conjugates. Antibodies were purified by affinity-chromatography using epitope-specific peptide.
Storage
Upon receipt, store at -20°C or -80°C. Avoid repeated freeze.