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Related Concept Videos

Transcription01:10

Transcription

Overview
Transcription is the process of synthesizing RNA from a DNA sequence by RNA polymerase. It is the first step in producing a protein from a gene sequence. Additionally, many other proteins and regulatory sequences are involved in the proper synthesis of messenger RNA (mRNA). Regulation of transcription is responsible for the differentiation of all the different types of cells and often for the proper cellular response to environmental signals.
Transcription Can Produce Different Kinds...
Transcription01:17

Transcription

Transcription is the synthesis of RNA from a DNA sequence by RNA polymerase. It is the first step in producing a protein from a gene sequence. Additionally, many other proteins and regulatory sequences are involved in correctly synthesizing messenger RNA (mRNA). Transcriptional regulation is responsible for the differentiation of different types of cells and often for the proper cellular response to environmental signals.
Transcription Can Produce Different Kinds of RNA Molecules
In eukaryotes,...
Transcription01:17

Transcription

Transcription is the synthesis of RNA from a DNA sequence by RNA polymerase. It is the first step in producing a protein from a gene sequence. Additionally, many other proteins and regulatory sequences are involved in correctly synthesizing messenger RNA (mRNA). Transcriptional regulation is responsible for the differentiation of different types of cells and often for the proper cellular response to environmental signals.
Transcription Can Produce Different Kinds of RNA Molecules
In eukaryotes,...
Transcription01:10

Transcription

Overview
Transcription is the process of synthesizing RNA from a DNA sequence by RNA polymerase. It is the first step in producing a protein from a gene sequence. Additionally, many other proteins and regulatory sequences are involved in the proper synthesis of messenger RNA (mRNA). Regulation of transcription is responsible for the differentiation of all the different types of cells and often for the proper cellular response to environmental signals.
Transcription Can Produce Different Kinds...
Operon Model01:23

Operon Model

The operon model represents a fundamental mechanism of gene regulation in prokaryotes, enabling coordinated expression of genes involved in related metabolic or functional pathways. Operons consist of structural genes, a promoter, and an operator, with transcription regulated by repressors, activators, and small effector molecules.Structure and Function of OperonsAn operon is a cluster of structural genes transcribed together under the control of a single promoter. The promoter region...
Combinatorial Gene Control02:33

Combinatorial Gene Control

Combinatorial gene control is the synergistic action of several transcriptional factors to regulate the expression of a single gene. The absence of one or more of these factors may lead to a significant difference in the level of gene expression or repression.
The expression of more than 30,000 genes is controlled by approximately 2000-3000 transcription factors. This is possible because a single transcription factor can recognize more than one regulatory sequence. The specificity in gene...

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DNA-Tethered RNA Polymerase for Programmable In vitro Transcription and Molecular Computation
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DNA-Tethered RNA Polymerase for Programmable In vitro Transcription and Molecular Computation

Published on: December 29, 2021

Modelling amorphous computations with transcription networks.

Zack Booth Simpson1, Timothy L Tsai, Nam Nguyen

  • 1Institute of Cellular and Molecular Biology, University of Texas at Austin, Austin, TX, USA.

Journal of the Royal Society, Interface
|May 29, 2009
PubMed
Summary
This summary is machine-generated.

Researchers developed transcriptional logic gates analogous to electronic gates for molecular computing. These novel hairpin gates form a NAND gate, enabling matter output for advanced biochemical computations.

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Area of Science:

  • Biochemistry
  • Molecular Computing
  • Synthetic Biology

Background:

  • Electronic computation relies on modular logic gates for complex operations.
  • Establishing equivalences between electronic and biochemical operations is challenging.
  • Transcriptional logic gates offer a potential bridge between these fields.

Purpose of the Study:

  • To develop an analogy between complementary metal-oxide-semiconductor (CMOS) and transcriptional logic gates.
  • To explore the utility of transcriptional logic gates in amorphous computations and pattern formation.
  • To design and characterize novel hairpin transcriptional gates for molecular computing.

Main Methods:

  • Analogous design of transcriptional logic gates based on CMOS principles.
  • Modeling the pattern-forming abilities of immobilized transcriptional gates.
  • Designing unique hairpin transcriptional gates.
  • Characterizing hairpin gates within a binary latch system.

Main Results:

  • Successfully designed and characterized hairpin transcriptional gates.
  • Demonstrated a binary latch using these gates, similar to previous work.
  • The hairpin gates are suitable for creating a complementary NAND gate.
  • This NAND gate can form the basis for molecular computing systems.

Conclusions:

  • Transcriptional logic gates provide a viable model for molecular computation.
  • Hairpin transcriptional gates are a promising component for building complex molecular logic circuits.
  • This work lays the foundation for molecular computing systems that output matter.