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Cell migration requires the coordinated spatiotemporal regulation of actomyosin contraction and cell protrusion/adhesion. Nonmuscle myosin II (MII) controls Rac1 and Cdc42 activation, and cell protrusion and focal complex formation in migrating cells. However, these mechanisms are poorly understood. Here, we show that MII interacts specifically with(More)
We previously showed that p21-activated kinase 2 (PAK2), a major PAK isoform expressed in PC12 cells, mediates neurite outgrowth via Rac1 GTPase. RhoGDI1 forms a complex with Rac1, resulting in its inhibition. Rac1 activation requires dissociation from RhoGDI1. Here, we show that PAK2 mediates basic fibroblast growth factor (bFGF)-stimulated neurite(More)
BACKGROUND Non-muscle myosin II (NM II) regulates a wide range of cellular functions, including neuronal differentiation, which requires precise spatio-temporal activation of Rho GTPases. The molecular mechanism underlying the NM II-mediated activation of Rho GTPases is poorly understood. The present study explored the possibility that NM II regulates(More)
This paper introduces the design and implementation of a novel current cell in current-steering digital-to-analog converter (DAC). The current cell consists of current switch and source which are independently controlled by latch. A sequential switch-on process similar to thermometer decoding is implemented in source to reduce the power consumption. A 12-b(More)
which permits unrestricted noncommercial use, distribution, and reproduction in any medium, provided the original work is properly cited. A low power CMOS control circuit is applied in an integrated DC-DC buck converter. The integrated converter is composed of a feedback control circuit and power block with 0.35 μm CMOS process. A current-sensing circuit is(More)
This paper describes the CMOS logic circuit which is composed with LDMOSFET. Compared to a conventional MOSFET, the proposed LDMOSFET is considered to show a high power tolerance in CMOS inverter circuit and be well adaptable in display driver circuits which require high breakdown voltage and trans-conductance. The channel in LDMOSFET encloses a(More)
p21-activated kinase (PAK) targeting to the plasma membrane is essential for PC12 cell neurite outgrowth. Phospholipase C-gamma1 (PLC-gamma1) can mediate the PAK translocation in response to growth factors, since PLC-gamma1 binds to both tyrosine-phosphorylated receptor tyrosine kinases and PAK through its SH2 and SH3 domain, respectively. In the present(More)
The simulation and experimental study of current-mode DC-DC boost converter is presented in this paper The DC-DC converter is designed with a standard 0.35µm BiCMOS process. The off-chip LC filter is operated with the inductance of 1mH and capacitance of 100µF. The simulation results show the high performance DC-DC boost converter. The output(More)
A smart biosensor IC is developed by using a differential current-to-time interval converter in BiCMOS process. This biosensor IC provides a digital output directly connectable to a microprocessor. Figure 1 shows a cross-sectional diagram of an ISFET using 0.35 standard CMOS process [1]. It has a floating gate structure which is passivated by a pH sensitive(More)