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The phosphorylation of Rb by CDK4/6 and CDK2 dissociates the Rb-repressor complex and serves as an on/off switch for the cell cycle. Once Rb is phosphorylated, the inhibition is released on the E2F transcriptional activity. This allows for the transcription of S phase genes encoding for proteins that amplify the G1 to S phase switch.
Gene Designer is a computer software package for bioinformatics. [ 1 ] [ 2 ] It is used by molecular biologists from academia, government, and the pharmaceutical, chemical, agricultural, and biotechnology industries to design, [ 3 ] clone, and validate genetic sequences.
XCircuit is a schematic capture program for drawing publication-quality VLSI electrical circuit schematic diagrams and related figures. It's part of the Open Circuit Design tools. It's primarily intended for ULSI/VLSI IC design and not for PCB design, the latter though is still possible. [2]
Genetic regulatory circuits (also referred to as transcriptional regulatory circuits) is a concept that evolved from the Operon Model discovered by François Jacob and Jacques Monod. [ 1 ] [ 2 ] [ 3 ] They are functional clusters of genes that impact each other's expression through inducible transcription factors and cis-regulatory elements .
A structural gene is a gene that codes for any RNA or protein product other than a regulatory factor (i.e. regulatory protein).A term derived from the lac operon, structural genes are typically viewed as those containing sequences of DNA corresponding to the amino acids of a protein that will be produced, as long as said protein does not function to regulate gene expression.
A computational gene [1] [2] [3] is a molecular automaton consisting of a structural part and a functional part; and its design is such that it might work in a cellular environment. The structural part is a naturally occurring gene , which is used as a skeleton to encode the input and the transitions of the automaton (Fig. 1A).
At the moment, circuit design is improving at a slow pace because of insufficient organization of known multiple gene interactions and mathematical models. This issue is being addressed by applying computer-aided design (CAD) software to provide multimedia representations of circuits through images, text and programming language applied to ...
Cells use interacting genes and proteins, which are called gene circuits, to implement diverse function, such as responding to environmental signals, decision making and communication. Three key components are involved: DNA, RNA and Synthetic biologist designed gene circuits that can control gene expression from several levels including ...