The Raf-1 serine/threonine protein kinase. 1994

N S Magnuson, and T Beck, and H Vahidi, and H Hahn, and U Smola, and U R Rapp
Department of Microbiology, Washington State University, Pullman 99164-4233.

Raf-1 belongs to a family of serine/threonine protein kinases which are highly conserved through evolution in multicellular organisms. Raf-1 kinase has gained much attention due to its function as a critical shuttle enzyme that connects stimulation of growth factor receptors and protein kinase C at the cell membrane to changes in the expression of genes involved in the control of cell growth, differentiation and survival. Regulation of Raf-1 activity is complex and involves Ras, as well as several serine/threonine and tyrosine kinases. Through a series of phosphorylation events, extracellular signals are connected through the Raf-1/MAP kinase pathway to activity-regulation of several oncogene-class transcription factors via phosphorylation of specific serine residues. Under ordinary circumstances, the cascade involving Raf-1 eventually leads to changes in gene expression and protein synthesis. Upon constitutive activation of Raf-1 kinase, as a result of genetic changes, a variety of cell types acquire a transformed phenotype.

UI MeSH Term Description Entries
D011493 Protein Kinase C An serine-threonine protein kinase that requires the presence of physiological concentrations of CALCIUM and membrane PHOSPHOLIPIDS. The additional presence of DIACYLGLYCEROLS markedly increases its sensitivity to both calcium and phospholipids. The sensitivity of the enzyme can also be increased by PHORBOL ESTERS and it is believed that protein kinase C is the receptor protein of tumor-promoting phorbol esters. Calcium Phospholipid-Dependent Protein Kinase,Calcium-Activated Phospholipid-Dependent Kinase,PKC Serine-Threonine Kinase,Phospholipid-Sensitive Calcium-Dependent Protein Kinase,Protein Kinase M,Calcium Activated Phospholipid Dependent Kinase,Calcium Phospholipid Dependent Protein Kinase,PKC Serine Threonine Kinase,Phospholipid Sensitive Calcium Dependent Protein Kinase,Phospholipid-Dependent Kinase, Calcium-Activated,Serine-Threonine Kinase, PKC
D011518 Proto-Oncogene Proteins Products of proto-oncogenes. Normally they do not have oncogenic or transforming properties, but are involved in the regulation or differentiation of cell growth. They often have protein kinase activity. Cellular Proto-Oncogene Proteins,c-onc Proteins,Proto Oncogene Proteins, Cellular,Proto-Oncogene Products, Cellular,Cellular Proto Oncogene Proteins,Cellular Proto-Oncogene Products,Proto Oncogene Products, Cellular,Proto Oncogene Proteins,Proto-Oncogene Proteins, Cellular,c onc Proteins
D011905 Genes, ras Family of retrovirus-associated DNA sequences (ras) originally isolated from Harvey (H-ras, Ha-ras, rasH) and Kirsten (K-ras, Ki-ras, rasK) murine sarcoma viruses. Ras genes are widely conserved among animal species and sequences corresponding to both H-ras and K-ras genes have been detected in human, avian, murine, and non-vertebrate genomes. The closely related N-ras gene has been detected in human neuroblastoma and sarcoma cell lines. All genes of the family have a similar exon-intron structure and each encodes a p21 protein. Ha-ras Genes,Ki-ras Genes,N-ras Genes,c-Ha-ras Genes,c-Ki-ras Genes,c-N-ras Genes,ras Genes,v-Ha-ras Genes,v-Ki-ras Genes,H-ras Genes,H-ras Oncogenes,Ha-ras Oncogenes,K-ras Genes,K-ras Oncogenes,Ki-ras Oncogenes,N-ras Oncogenes,c-H-ras Genes,c-H-ras Proto-Oncogenes,c-Ha-ras Proto-Oncogenes,c-K-ras Genes,c-K-ras Proto-Oncogenes,c-Ki-ras Proto-Oncogenes,c-N-ras Proto-Oncogenes,ras Oncogene,v-H-ras Genes,v-H-ras Oncogenes,v-Ha-ras Oncogenes,v-K-ras Genes,v-K-ras Oncogenes,v-Ki-ras Oncogenes,Gene, Ha-ras,Gene, Ki-ras,Gene, v-Ha-ras,Gene, v-Ki-ras,Genes, Ha-ras,Genes, Ki-ras,Genes, N-ras,Genes, v-Ha-ras,Genes, v-Ki-ras,H ras Genes,H ras Oncogenes,H-ras Gene,H-ras Oncogene,Ha ras Genes,Ha ras Oncogenes,Ha-ras Gene,Ha-ras Oncogene,K ras Genes,K ras Oncogenes,K-ras Gene,K-ras Oncogene,Ki ras Genes,Ki ras Oncogenes,Ki-ras Gene,Ki-ras Oncogene,N ras Genes,N ras Oncogenes,N-ras Gene,N-ras Oncogene,c H ras Genes,c H ras Proto Oncogenes,c Ha ras Genes,c Ha ras Proto Oncogenes,c K ras Genes,c K ras Proto Oncogenes,c Ki ras Genes,c Ki ras Proto Oncogenes,c N ras Genes,c N ras Proto Oncogenes,c-H-ras Gene,c-H-ras Proto-Oncogene,c-Ha-ras Gene,c-Ha-ras Proto-Oncogene,c-K-ras Gene,c-K-ras Proto-Oncogene,c-Ki-ras Gene,c-Ki-ras Proto-Oncogene,c-N-ras Gene,c-N-ras Proto-Oncogene,ras Gene,ras Oncogenes,v H ras Genes,v H ras Oncogenes,v Ha ras Genes,v Ha ras Oncogenes,v K ras Genes,v K ras Oncogenes,v Ki ras Genes,v Ki ras Oncogenes,v-H-ras Gene,v-H-ras Oncogene,v-Ha-ras Gene,v-Ha-ras Oncogene,v-K-ras Gene,v-K-ras Oncogene,v-Ki-ras Gene,v-Ki-ras Oncogene
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D015398 Signal Transduction The intracellular transfer of information (biological activation/inhibition) through a signal pathway. In each signal transduction system, an activation/inhibition signal from a biologically active molecule (hormone, neurotransmitter) is mediated via the coupling of a receptor/enzyme to a second messenger system or to an ion channel. Signal transduction plays an important role in activating cellular functions, cell differentiation, and cell proliferation. Examples of signal transduction systems are the GAMMA-AMINOBUTYRIC ACID-postsynaptic receptor-calcium ion channel system, the receptor-mediated T-cell activation pathway, and the receptor-mediated activation of phospholipases. Those coupled to membrane depolarization or intracellular release of calcium include the receptor-mediated activation of cytotoxic functions in granulocytes and the synaptic potentiation of protein kinase activation. Some signal transduction pathways may be part of larger signal transduction pathways; for example, protein kinase activation is part of the platelet activation signal pathway. Cell Signaling,Receptor-Mediated Signal Transduction,Signal Pathways,Receptor Mediated Signal Transduction,Signal Transduction Pathways,Signal Transduction Systems,Pathway, Signal,Pathway, Signal Transduction,Pathways, Signal,Pathways, Signal Transduction,Receptor-Mediated Signal Transductions,Signal Pathway,Signal Transduction Pathway,Signal Transduction System,Signal Transduction, Receptor-Mediated,Signal Transductions,Signal Transductions, Receptor-Mediated,System, Signal Transduction,Systems, Signal Transduction,Transduction, Signal,Transductions, Signal
D017346 Protein Serine-Threonine Kinases A group of enzymes that catalyzes the phosphorylation of serine or threonine residues in proteins, with ATP or other nucleotides as phosphate donors. Protein-Serine-Threonine Kinases,Serine-Threonine Protein Kinase,Serine-Threonine Protein Kinases,Protein-Serine Kinase,Protein-Serine-Threonine Kinase,Protein-Threonine Kinase,Serine Kinase,Serine-Threonine Kinase,Serine-Threonine Kinases,Threonine Kinase,Kinase, Protein-Serine,Kinase, Protein-Serine-Threonine,Kinase, Protein-Threonine,Kinase, Serine-Threonine,Kinases, Protein Serine-Threonine,Kinases, Protein-Serine-Threonine,Kinases, Serine-Threonine,Protein Kinase, Serine-Threonine,Protein Kinases, Serine-Threonine,Protein Serine Kinase,Protein Serine Threonine Kinase,Protein Serine Threonine Kinases,Protein Threonine Kinase,Serine Threonine Kinase,Serine Threonine Kinases,Serine Threonine Protein Kinase,Serine Threonine Protein Kinases
D017868 Cyclic AMP-Dependent Protein Kinases A group of enzymes that are dependent on CYCLIC AMP and catalyze the phosphorylation of SERINE or THREONINE residues on proteins. Included under this category are two cyclic-AMP-dependent protein kinase subtypes, each of which is defined by its subunit composition. Adenosine Cyclic Monophosphate-Dependent Protein Kinases,Protein Kinase A,cAMP Protein Kinase,cAMP-Dependent Protein Kinases,Cyclic AMP-Dependent Protein Kinase,cAMP-Dependent Protein Kinase,Adenosine Cyclic Monophosphate Dependent Protein Kinases,Cyclic AMP Dependent Protein Kinase,Cyclic AMP Dependent Protein Kinases,Protein Kinase, cAMP,Protein Kinase, cAMP-Dependent,Protein Kinases, cAMP-Dependent,cAMP Dependent Protein Kinase,cAMP Dependent Protein Kinases
D017871 Calcium-Calmodulin-Dependent Protein Kinases A CALMODULIN-dependent enzyme that catalyzes the phosphorylation of proteins. This enzyme is also sometimes dependent on CALCIUM. A wide range of proteins can act as acceptor, including VIMENTIN; SYNAPSINS; GLYCOGEN SYNTHASE; MYOSIN LIGHT CHAINS; and the MICROTUBULE-ASSOCIATED PROTEINS. (From Enzyme Nomenclature, 1992, p277) Ca(2+)-Calmodulin-Dependent Protein Kinase,Calcium-Calmodulin-Dependent Protein Kinase,Calmodulin-Dependent Protein Kinase,Calmodulin-Dependent Protein Kinases,Multifunctional Calcium-Calmodulin-Dependent Protein Kinase,Restricted Calcium-Calmodulin-Dependent Protein Kinase,Calcium-Calmodulin-Dependent Protein Kinases, Multifunctional,Calcium-Calmodulin-Dependent Protein Kinases, Restricted,Calmodulin-Dependent Multiprotein Kinase,Calmodulin-Kinase,Cam-MPK,Multifunctional Calcium-Calmodulin-Dependent Protein Kinases,Restricted Calcium-Calmodulin-Dependent Protein Kinases,Calcium Calmodulin Dependent Protein Kinase,Calcium Calmodulin Dependent Protein Kinases, Multifunctional,Calcium Calmodulin Dependent Protein Kinases, Restricted,Calmodulin Dependent Multiprotein Kinase,Calmodulin Dependent Protein Kinase,Calmodulin Dependent Protein Kinases,Calmodulin Kinase,Cam MPK,Kinase, Calcium-Calmodulin-Dependent Protein,Kinase, Calmodulin-Dependent Protein,Multifunctional Calcium Calmodulin Dependent Protein Kinase,Multifunctional Calcium Calmodulin Dependent Protein Kinases,Multiprotein Kinase, Calmodulin-Dependent,Protein Kinase, Calcium-Calmodulin-Dependent,Protein Kinase, Calmodulin-Dependent,Protein Kinases, Calcium-Calmodulin-Dependent,Protein Kinases, Calmodulin-Dependent,Restricted Calcium Calmodulin Dependent Protein Kinase,Restricted Calcium Calmodulin Dependent Protein Kinases
D019908 Proto-Oncogene Proteins c-raf A ubiquitously expressed raf kinase subclass that plays an important role in SIGNAL TRANSDUCTION. The c-raf Kinases are MAP kinase kinase kinases that have specificity for MAP KINASE KINASE 1 and MAP KINASE KINASE 2. c-raf Proteins,Kinase Raf-1,Kinase p74(raf-1),Proto-Oncogene Protein c-raf,c-raf Kinases,cRaf1 Kinase,raf-1 Kinase,Kinase Raf 1,Kinase, cRaf1,Kinase, raf-1,Kinases, c-raf,Protein c-raf, Proto-Oncogene,Proteins c-raf, Proto-Oncogene,Proteins, c-raf,Proto Oncogene Protein c raf,Proto Oncogene Proteins c raf,Raf-1, Kinase,c raf Kinases,c raf Proteins,c-raf, Proto-Oncogene Protein,c-raf, Proto-Oncogene Proteins,raf 1 Kinase

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