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Genome Annotation and Assembly03:36

Genome Annotation and Assembly

21.1K
The genome refers to all of the genetic material in an organism. It can range from a few million base pairs in microbial cells to several billion base pairs in many eukaryotic organisms. Genome assembly refers to the process of taking the DNA sequencing data and putting it all back together in a correct order to create a close representation of the original genome. This is followed by the identification of functional elements on the newly assembled genome, a process called genome annotation.
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Production Efficiency01:01

Production Efficiency

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Net production efficiency (NPE) is the efficiency at which organisms assimilate energy into biomass for the next trophic level. Due to low metabolic rates and less energy spent on thermoregulatory processes, the NPE of ectotherms (cold-blooded animals) is 10 times higher than endotherms (warm-blooded animals).
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Trophic Efficiency00:46

Trophic Efficiency

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Trophic level transfer efficiency (TLTE) is a measure of the total energy transfer from one trophic level to the next. Due to extensive energy loss as metabolic heat, an average of only 10% of the original energy obtained is passed on to the next level. This pattern of energy loss severely limits the possible number of trophic levels in a food chain.
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Efficiency of The Carnot Cycle01:16

Efficiency of The Carnot Cycle

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The hypothetical Carnot cycle consists of an ideal gas subjected to two isothermal and two adiabatic processes. Since the internal energy of an ideal gas depends only on its temperature, which is the same before and after the completion of the Carnot cycle, there is no change in its internal energy. Hence, using the first law of thermodynamics, the total heat exchanged by the ideal gas equals the total work done. Thus, we can quantify the efficiency of the Carnot cycle via the heat exchanged...
3.7K
Turnover Number and Catalytic Efficiency01:19

Turnover Number and Catalytic Efficiency

21.7K
The turnover number of an enzyme is the maximum number of substrate molecules it can transform per unit time. Turnover numbers for most enzymes range from 1 to 1000 molecules per second. Catalase has the known highest turnover number, capable of converting up to 2.8×106 molecules of hydrogen peroxide into water and oxygen per second. Lysozyme has the lowest known turnover number of half a molecule per second.
Chymotrypsin is a pancreatic enzyme that breaks down proteins during digestion....
21.7K
Column Efficiency: Plate Theory01:10

Column Efficiency: Plate Theory

2.1K
Band broadening in a chromatography column is measured by its efficiency. This is determined by the number of theoretical plates (N). Theoretical plate theory states that a separation column consists of a continuous series of imaginary plates where solute equilibration occurs between stationary and mobile phases.
A higher number of theoretical plates signifies better column efficiency and improved separation capabilities. Plate height affects bandwidth and separation quality; it is inversely...
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Video Experimental Relacionado

Updated: Feb 13, 2026

A Bioinformatics Pipeline to Accurately and Efficiently Analyze the MicroRNA Transcriptomes in Plants
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A Bioinformatics Pipeline to Accurately and Efficiently Analyze the MicroRNA Transcriptomes in Plants

Published on: January 21, 2020

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P-GRe: Una tubería eficiente para la anotación de pseudogenes.

Sébastien Cabanac1, Christophe Dunand1, Catherine Mathé1

  • 1Laboratoire de Recherche en Sciences Végétales, Université de Toulouse, CNRS, Université Paul Sabatier Toulouse 3, Toulouse INP, Auzeville-Tolosane, France.

Genomics
|February 11, 2026
PubMed
Resumen
Este resumen es generado por máquina.

Los pseudogenes, una vez descartados como "ADN basura", ahora son reconocidos por regular los genes. Una nueva herramienta automatizada, Pseudo-Gene Retriever (P-GRe), mejora la identificación y anotación de pseudógenos en genomas enteros.

Palabras clave:
La anotación de anotación.La bioinformática es la bioinformática.Seudógenos: Seudógenos son personas falsas.El software es un software de software.

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Annotation of Plant Gene Function via Combined Genomics, Metabolomics and Informatics
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Área de la Ciencia:

  • La genómica es la genómica.
  • Biología Molecular Biología Molecular
  • La bioinformática es la bioinformática.

Sus antecedentes:

  • Históricamente, los seudógenos fueron considerados como ADN no funcional.
  • Investigaciones emergentes destacan sus roles cruciales en la regulación genética post-transcripcional.
  • La identificación de pseudógenos ayuda a comprender la evolución de los genes y la dinámica de las familias multigenéticas.

Objetivo del estudio:

  • Desarrollar una tubería totalmente automatizada para la anotación de pseudógenos de todo el genoma.
  • Para introducir el Pseudo-Gene Retriever (P-GRe), un nuevo software para la predicción de pseudogenes.
  • Mejorar la sensibilidad y el alcance de los métodos existentes para la identificación de pseudógenos.

Principales métodos:

  • Desarrolló P-GRe, una herramienta automatizada de predicción de pseudógenos.
  • Se ha integrado el miniprot. alineador de alta velocidad y sensible.
  • Se han implementado pasos de filtrado y post-análisis para una mayor precisión.

Principales resultados:

  • P-GRe proporciona una tubería de anotación de pseudógenos totalmente automatizada.
  • El software requiere sólo secuencia del genoma, GFF, y archivos de secuencia de proteínas.
  • P-GRe demuestra un rendimiento superior en comparación con el software existente, con una mayor sensibilidad.

Conclusiones:

  • P-GRe ofrece un avance significativo en la anotación automatizada de pseudógenos.
  • La herramienta mejora la capacidad de identificación de pseudogenes unitarios.
  • Esto facilita una visión más profunda de la regulación génica y los procesos evolutivos.