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Activation of PKCdelta by tyrosine phosphorylation in rat parotid acinar cells

Benes C, Zheng Y, Soltoff SP

Receptor- and nonreceptor-mediated stimuli produce increases in both PKCdelta tyrosine phosphorylation and activity in rat parotid acinar cells and other cells. In vivo and in vitro increases and decreases in...
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Fyn Tyrosine Kinase-mediated Tyrosine Phosphorylation of Roundabout (Robo), the Slit Receptor

Jeon ES, Bae KW, Park HT

  • KMID: 2224507
  • Korean J Anat.
  • 2004 Jun;37(3):275-281.
In this study, the molecular mechanism of tyrosine phosphorylation of Roundabout (Robo), the transmembrane receptor for slits, was investigated. The tyrosine phosphorylation of intracellular portion of Robo was increased by...
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Multiple Regulation of Roundabout (Robo) Phosphorylation in a Heterologous Cell System

Park HT

  • KMID: 1611238
  • Korean J Physiol Pharmacol.
  • 2004 Apr;8(2):111-115.
Roundabout (Robo) is the transmembrane receptor for slit, the neuronal guidance molecule. In this study, the tyrosine phosphorylation of Robo was observed in Robo-transfected human embryonic kidney cells and developing...
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Regulation of mammalian pyruvate dehydrogenase complex by phosphorylation: complexity of multiple phosphorylation sites and kinases

Patel MS, Korotchkina LG

  • KMID: 1457529
  • Exp Mol Med.
  • 2001 Dec;33(4):191-197.
This review summarizes the recent developments on the regulation of human pyruvate dehydrogenase complex (PDC) by site-specific phosphorylation by four kinases. Mutagenic analysis of the three phosphorylation sites of human...
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Characterization of mitosis-specific phosphorylation of tumor-associated microtubule-associated protein

Hong KU, Kim HJ, Bae CD, Park J

Tumor-associated microtubule-associated protein (TMAP), also known as cytoskeleton associated protein 2 (CKAP2), has been recently shown to be involved in the assembly and maintenance of mitotic spindle and also plays...
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GLUT phosphorylation may be required to GLUT translocation mechanism

Hah JS

  • KMID: 1581028
  • Korean J Physiol Pharmacol.
  • 2000 Dec;4(6):497-506.
In this work, GLUTs phosphorylations by a downstream effector of PI3-kinase, PKC- zeta, were studied, and GLUT4 phosphorylation was compared with GLUT2 phosphorylation in relation to the translocation mechanism. Prior to phosphorylation experiment,...
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Myoplasmic [Ca2+], Crossbridge Phosphorylation and Latch in Rabbit Bladder Smooth Muscle

Kim YD, Cho MH, Kwon SC

Tonic smooth muscle exhibit the latch phenomenon: high force at low myosin regulatory light chains (MRLC) phosphorylation, shortening velocity (Vo), and energy consumption. However, the kinetics of MRLC phosphorylation and...
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Phosphorylation of ribosomal protein S6 and its regulation during differentiation of human leukemic cells

Kim IS, Lee SB, Cho KC

We attempted to study the role of protein tyrosine kinase (PTK) and protein kinase C (PKC) in the cascade of phosphorylation of ribosomal protein S6 during differentiation of leukemic cells...
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Phosphorylation and Reorganization of Keratin Networks: Implications for Carcinogenesis and Epithelial Mesenchymal Transition

Kim HJ, Choi WJ, Lee CH

Metastasis is one of hallmarks of cancer and a major cause of cancer death. Combatting metastasis is highly challenging. To overcome these difficulties, researchers have focused on physical properties of...
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Regulation of chicken protein tyrosine phosphatase 1 and human protein tyrosine phosphatase 1B activity by casein kinase II- and p56lck-mediated phosphorylation

Kang KR, Kim CW

  • KMID: 927134
  • Exp Mol Med.
  • 2000 Mar;32(1):47-51.
Protein tyrosine phosphorylation and dephosphorylation are important in the regulation of cell proliferation and signaling cascade. In order to examine whether phosphatase activity of CPTP1 and HPTP1B, typical nontransmembrane protein...
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12-O-Tetradecanoylphorbol-13-Acetate Induces Keratin 8 Phosphorylation and Reorganization via Expression of Transglutaminase-2

Lee EJ, Park MK, Kim HJ, Kang JH, Kim YR, Kang GJ, Byun HJ, Lee CH

  • KMID: 2170651
  • Biomol Ther.
  • 2014 Mar;22(2):122-128.
The stiffness of cancer cells is attributable to intermediate filaments such as keratin. Perinuclear reorganization via phosphorylation of specific serine residue in keratin is implicated in the deformability of metastatic...
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p53-mediated HIV-1 Tat Suppression is Likely to be Assaciated with duble-stranded RNA-dependent Protein Kinase, PKR

Kim JW, Byun HS, Bae YS

  • KMID: 1544230
  • J Korean Soc Virol.
  • 1999 Dec;29(4):235-245.
No abstract available.
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Phosphorylation of chicken protein tyrosine phosphatase 1 by casein kinase II in vitro

Jung EJ, Kang KR, Kang YS

  • KMID: 1532667
  • Exp Mol Med.
  • 1997 Dec;29(4):229-233.
The phosphorylation and dephosphorylation of proteins on tyrosyl residues are key regulatory mechanisms of cell growth and signal transduction and are controlled by opposing activities of protein tyrosine kinases and...
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AMPA, not NMDA, activates RhoA GTPases and subsequetly phosphorylates moesin

Kim SJ, Jeon S, Shin EY, Kim EG, Park J, Bae CD

  • KMID: 755672
  • Exp Mol Med.
  • 2004 Feb;36(1):98-102.
Glutamate induced rapid phosphorylation of moesin, one of ERM family proteins involved in the ligation of membrane to actin cytoskeleton, in rat hippocampal cells (JBC, 277:16576-16584, 2002). However, the identity...
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Polyamines Regulate Growth Factor-Induced Protein Phosphorylation in MCF-7 Human Breast Cancer Cells

Lee JY, Lee KH, Kim BG

  • KMID: 2134354
  • Cancer Res Treat.
  • 2002 Jun;34(3):198-204.
PURPOSE: Growth factors stimulate protein phosphorylation resulting in transmission of mitogenic signals. In breast cancer, protein kinases and their substrate proteins are importnat in cell proliferation and phathogenesis. Polymine is...
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IFN-alpha Downregulates ERK Phosphorylation of CD4+ T Lymphocytes in Systemic Lupus Erythematosus

Yoo WH

  • KMID: 2202227
  • J Korean Rheum Assoc.
  • 2006 Sep;13(3):193-202.
OBJECTIVE: CD4+ T cells from patients with systemic lupus erythematosus (SLE) display aberrant TCR signaling and IFN-alpha plays critical roles in the pathogenesis of SLE; however, the effects of IFN-alpha...
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Tyrosine phosphorylation of paxillin may be involved in vascular smooth muscle contraction

Fang LH, Cho KS, Lee SJ, Ahn HY

  • KMID: 1580807
  • Korean J Physiol Pharmacol.
  • 2000 Jun;4(3):211-217.
Paxillin is a regulatory component of the complex of cytoskeletal proteins that link the actin cytoskeleton to the plasma membrane. However, the role of paxillin during smooth muscle contraction is unclear. We investigated...
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The Role of PKCzeta on MT1-MMP Expression with Shear Stress and Cyclic Strain in Microvascular Endothelial Cells

Yun SS, Kim JI, Moon IS

  • KMID: 2096845
  • J Korean Soc Vasc Surg.
  • 2007 Nov;23(2):120-127.
PURPOSE: hear stress (SS) and cyclic strain (CS) influence the expression of membrane type 1-matrix metalloproteinase (MT1-MMP) in microvascular endothelial cells (MVECs). It is known that changes in the level...
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Alfa - difluoromethylornithine Reduced Protein Phosphorylation in MCF-7 Human Breast Cancer Cells

Lee JY, Kim BK

  • KMID: 2059303
  • J Korean Cancer Assoc.
  • 1999 Oct;31(5):1044-1053.
No abstract available.
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Amphetamine-induced ERM Proteins Phosphorylation Is through PKCbeta Activation in PC12 Cells

Jeong HJ, Kim JH, Jeon S

Amphetamine, a synthetic psychostimulant, is transported by the dopamine transporter (DAT) to the cytosol and increases the exchange of extracellular amphetamine by intracellular dopamine. Recently, we reported that the phosphorylation...
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