Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: EC:2.7.10.1 (ERK)
 95,504 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

The study of MS-KIF18A kinesin protein is focused on its cellular distribution and association with a cargo protein. Indirect immunofluorescence (IF) analyzed the intracellular distribution of endogenous MS-KIF18A and the transfected enhanced green fluorescence protein (eGFP)-MS-KIF18A in osteogenic cells. In both cases, the proteins were localized at the plasma membrane, cytosol, and nucleus. Bioinformatics analysis suggested interactions between MS-KIF18A and estrogen receptor (ERalpha) which were further elucidated by immunoprecipitation (IP). We identified interaction between endogenous MS-KIF18A with 66 and 46 kDa isoforms of ERalpha in MBA-15 cells. Moreover, MS-KIF18A and 66 kDa ERalpha complex has been demonstrated between ectopically expressed proteins in COS-7 cells. We have shown that anti-MS-KIF18A antibody immunoprecipitated the ERalpha and pERK in cells challenged with 17beta-estrogen (17beta-E2). The hormone activation induced mitogen-activated protein kinases (MAPK) pathway and increased p-ERK. The activation was interfered when cells were pre-treated with either ICI-182,780 or MAPK inhibitor PD98059 prior the challenge with 17beta-E2 that resulted in a decrease in association between MS-KIF18A and p-ERK1/2. The obtained results suggest a role for the proteins in a non-genomic response of MBA-15 cells challenged with 17beta-E2. This study presents a novel interaction between MS-KIF18A and ER that may have important physiological and pharmacological implications for estrogen action in various cells.
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PMID:MS-KIF18A, a kinesin, is associated with estrogen receptor. 1700 58

Kinesins are essential for the transport and positioning of several biomolecules through moving along the microtubule in eukaryotic cells. Up to now, there are 14 kinesin family proteins known. The MAPK pathway which is composed of multiple proteins constituting a complex cascade also plays important roles in cell proliferation, differentiation and apoptosis in eukaryotic cells. MAPK pathway includes three main kinases: MAPK Kinase Kinase, MAPK Kinase and mitogen-activated protein kinase that activate and phosphorylate downstream step by step in which abundant proteins scaffold together in complex ways. To accomplish the transmission of a variety of signals, numbers of kinesins are closely associated with the MAPK cascade such as Kinesin-1, Kinesin-3, Kinesin-5, Kinesin-8, Kinesin-11 and Kinesin-13 families in mammals and two kinds of kinesin-like proteins in plants. Studies have indicated that Kinesin-1 light chain KLC1, Kinesin-1 heavy chain KIF5B and Kinesin-11 family motor KIF26B interact with extracellular signal-regulated kinase ERK closely to regulate neuronal differentiation and mediate the chemosensitivity of osteosarcoma cells to drugs, Kinesin-3 family motor KIF13B and Kinesin-5 family motor Eg5 perform functions in regulating p38 to regulate the myelination of nervous system and facilitate the spindle elongation and tension, Kinesin-8 family motor MS-KIF18A and three isoforms of kinesin-13 can also connect and interact with MAPK pathway to transport estrogen receptor to the nucleus and control cell migration. In plant cells, NPK1-activating kinesin-like protein 1 NACK and AtNACK1 (HIK) kinesin-like protein HINKEL are two members of the plant-specific kinesin-7. They function as Ras at the upstream of MAPK pathway to regulate cytokinesis. This review summarizes the novel roles of kinesins in MAPK cascade and tries to discuss the mechanism of the interaction between them using mammalian and plant cells as models.
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PMID:Kinesins in MAPK cascade: How kinesin motors are involved in the MAPK pathway? 3034 67