Video Experimental Relacionado
Updated: Jul 12, 2026
11:08
Proofreading and DNA Repair Assay Using Single Nucleotide Extension and MALDI-TOF Mass Spectrometry Analysis
Published on: June 19, 2018
Correcciones y aclaraciones
Science (New York, N.Y.)
|December 24, 1993
Resumen
Los ratones que carecen de transferasa desoxinucleotidil terminal (TdT) muestran un repertorio de linfocitos inmaduros. Esta corrección aclara el origen de la secuencia de ADNc TdT del ratón utilizada en el estudio.
Área de la Ciencia:
- Inmunología Inmunología.
- Biología Molecular Biología Molecular
- Genética La genética.
Sus antecedentes:
- La transferasa desoxinucleotidil terminal (TdT) es una enzima clave en el desarrollo de los linfocitos.
- Se han estudiado ratones que carecen de TdT para comprender su papel en la generación de diversidad de linfocitos.
- Informes anteriores sobre ratones con deficiencia de TdT requieren una aclaración con respecto a la fuente del material genético.
Objetivo del estudio:
- Para corregir y proporcionar detalles de citación completos para el origen de la secuencia de ADNc TdT del ratón.
- Asegurar una referencia científica precisa en el estudio de ratones con deficiencia de TdT.
Principales métodos:
- Revisión de la literatura científica y las bases de datos.
- Verificación de la adquisición de la secuencia de ADNc.
- Cruce de referencias de los datos de la publicación.
Principales resultados:
- La secuencia de ADNc del ratón TdT se obtuvo inicialmente en el Laboratorio Europeo de Biología Molecular (número de acceso X04123).
- Esta información de secuencia fue publicada originalmente por Koiwai et al. en la Investigación de Ácidos Nucleicos en 1986.
Conclusiones:
- La atribución precisa de las fuentes de secuencias genéticas es crucial para la reproducibilidad científica.
- Esta aclaración garantiza la integridad de la investigación sobre la función de TdT en el desarrollo de los linfocitos.
Videos de Conceptos Relacionados
01:15Distance Corrections
To achieve precise distance measurements, especially in surveying and construction, certain corrections must be applied to account for potential sources of error like the standardization errors, temperature variations, and slope adjustments.Standardization error emerges when measurement equipment undergoes changes, such as wear, repairs, or weather impacts. To address this, surveyors compare the equipment’s readings to a standard. This process identifies any deviation that might lead to...
01:14NMR Spectrometers: Resolution and Error Correction
When magnetic nuclei in a sample achieve resonance and undergo relaxation, the signal detected in NMR is an approximately exponential free induction decay. Fourier transform of an exponential decay yields a Lorentzian peak in the frequency domain. Lorentzian peaks in an NMR spectrum are defined by their amplitude, full width at half maximum, and position, where the peak width is governed by the spin-spin relaxation time alone. In real experiments, however, the applied magnetic field is rendered...
01:28Accuracy, limits, and approximation
Accuracy, limits, and approximations are common in many fields, especially in engineering calculations. These concepts are imperative for ensuring that a given value is as close as possible to its true value.
Accuracy is defined as the closeness of the measured value to the true or actual value. In engineering mechanics, repeated measurements are taken during theoretical or experimental analyses to ensure that the result is precise and accurate.
The accuracy of any solution is based on the...
Accuracy is defined as the closeness of the measured value to the true or actual value. In engineering mechanics, repeated measurements are taken during theoretical or experimental analyses to ensure that the result is precise and accurate.
The accuracy of any solution is based on the...
01:12Types of Errors: Detection and Minimization
Error is the deviation of the obtained result from the true, expected value or the estimated central value. Errors are expressed in absolute or relative terms.
Absolute error in a measurement is the numerical difference from the true or central value. Relative error is the ratio between absolute error and the true or central value, expressed as a percentage.
Errors can be classified by source, magnitude, and sign. There are three types of errors: systematic, random, and gross.
Systematic or...
Absolute error in a measurement is the numerical difference from the true or central value. Relative error is the ratio between absolute error and the true or central value, expressed as a percentage.
Errors can be classified by source, magnitude, and sign. There are three types of errors: systematic, random, and gross.
Systematic or...
01:16Contaminants and Errors
Effective sample preparation is crucial for accurate and reliable laboratory analysis. During this process, two significant sources of error can arise: concentration bias from improper sample splitting and contamination caused by methods used to reduce particle size, such as grinding or homogenization. Identifying and minimizing these potential errors is crucial to ensuring the validity of the analysis.
Another key consideration is determining the appropriate number of samples required to...
Another key consideration is determining the appropriate number of samples required to...
01:19Errors and Mistakes in Surveying
Errors and mistakes in surveying refer to inaccuracies in measurements and data recording. The errors are deviations from the actual value caused by human sensory limitations, equipment flaws, or environmental effects. These errors are typically unintentional and can result from the inherent imperfections in the instruments used, atmospheric conditions, or the observer’s inability to perceive exact measurements. On the other hand, mistakes are caused by the surveyor's lack of attention,...