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Related Concept Videos

MOSFET01:16

MOSFET

The Metal-Oxide-Semiconductor Field-Effect Transistor (MOSFET) plays a pivotal role in modern electronics thanks to its versatility and efficiency in controlling electrical currents. This device, also known as IGFET, MISFET, and MOSFET, has three main terminals: the Source, Drain, and Gate. MOSFETs are classified into n-channel or p-channel types based on the doping characteristics of their substrate and the source or drain regions.
In an n-MOSFET, the structure includes n-type source and drain...
Characteristics of MOSFET01:17

Characteristics of MOSFET

Metal-oxide-semiconductor field-effect Transistors, or MOSFETs, play a critical role in electronic circuits. They are primarily utilized for amplifying and switching signals.
Various vital parameters influence their functionality, which is crucial for theory and electronics applications. First, channel dimensions, precisely length, and width, are pivotal. The size of these channels affects the transistor's ability to carry current and switching speeds; shorter channels typically enable quicker...
MOSFET Amplifiers01:17

MOSFET Amplifiers

The MOSFET, when operating in its active region, functions as a voltage-controlled current source. In this region, the gate-to-source voltage controls the drain current. This principle underlies the operation of the transconductance MOSFET amplifier. The output current is directed through a load resistor to convert this amplifier into a voltage amplifier. The output voltage is then obtained by subtracting the voltage drop across the load resistance from the supply voltage. This process results...
Regulation of the Unfolded Protein Response01:31

Regulation of the Unfolded Protein Response

Inositol-requiring kinase one or IRE1 is the most conserved eukaryotic unfolded protein response (UPR) receptor. It is a type I transmembrane protein kinase receptor with a distinctive site-specific RNase activity. As the binding mechanics of the misfolded proteins with the N-terminal domain of IRE-1 are unclear, three binding models — direct, indirect, and allosteric -- are proposed for receptor activation. Nevertheless, it is known that once a misfolded protein associates with IRE1, it...
Small-Signal Analysis of MOSFET Amplifiers01:23

Small-Signal Analysis of MOSFET Amplifiers

In small-signal analysis, a MOSFET transistor amplifier acts as a linear amplifier when operating in its saturation region. The gate-to-source voltage (VGS) of the MOSFET is the sum of the DC biasing voltage and the small time-varying input signal. This combination sets up the operating point and modulates the drain current (ID) that flows from the drain to the source. When a small AC signal is superimposed on the DC bias voltage at the gate, the instantaneous drain current comprises three...
MOSFET: Enhancement Mode01:22

MOSFET: Enhancement Mode

Enhancement-mode MOSFETs are pivotal components in electronics, distinguished by their capacity to act as highly efficient switches. They are part of the larger family of metal-oxide Semiconductor Field-Effect Transistors (MOSFETs). They are available in two types: p-channel and n-channel, each tailored to specific polarity operations.
In their basic form, enhancement-mode MOSFETs are typically non-conductive when the gate-source voltage (Vgs) is zero. This default 'off' state means no current...

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Updated: Jun 15, 2026

A High Resolution Method to Monitor Phosphorylation-dependent Activation of IRF3
11:44

A High Resolution Method to Monitor Phosphorylation-dependent Activation of IRF3

Published on: January 24, 2016

MUM1/IRF4: A Review.

Gabriela Gualco1, Lawrence M Weiss, Carlos E Bacchi

  • 1Consultoria em Patologia, Botucatu, Sao Paulo, Brazil.

Applied Immunohistochemistry & Molecular Morphology : AIMM
|February 26, 2010
PubMed
Summary
This summary is machine-generated.

The MUM1/IRF4 protein, a key regulator in cell differentiation, is expressed in various blood cancers. Its role in hematologic malignancies suggests it could be a therapeutic target.

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Native Polyacrylamide Gel Electrophoresis Immunoblot Analysis of Endogenous IRF5 Dimerization

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Area of Science:

  • Hematology
  • Molecular Biology
  • Immunology

Background:

  • MUM1/IRF4 is an interferon regulatory factor (IRF) family transcription factor.
  • It plays a crucial role in hematopoietic cell differentiation and maturation.
  • Expression patterns vary across different hematopoietic lineages and stages.

Purpose of the Study:

  • To review the literature on MUM1/IRF4.
  • To emphasize the pathologic aspects of MUM1/IRF4 in reactive and malignant conditions.
  • To explore its potential as a therapeutic target in neoplasms.

Main Methods:

  • Literature review of MUM1/IRF4.
  • Analysis of its role in cell differentiation.
  • Examination of its expression in hematologic and nonhematologic conditions.

Main Results:

  • MUM1/IRF4 is a key regulator in lymphoid, myeloid, and dendritic cell development.
  • Its expression is detected in numerous lymphoid and myeloid malignancies.
  • Pathologic roles in reactive and neoplastic conditions were highlighted.

Conclusions:

  • MUM1/IRF4 is a significant factor in hematopoietic cell differentiation.
  • Its presence in malignancies indicates potential as a therapeutic target.
  • Further research into its pathologic roles is warranted.