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Mutations

Mutations

Mutations

Mutations

Mutations are changes in the sequence of DNA. These changes can occur spontaneously or they can be induced by exposure to environmental factors. Mutations can be characterized in a number of different ways: whether and how they alter the amino acid sequence of the protein, whether they occur over a small or large area of DNA, and whether they occur in somatic cells or germline cells.
Chromosomal Alterations Are Large-Scale Mutations
While point mutations are changes in a single nucleotide in...

Viral Mutations

Viral Mutations

A mutation is a change in the sequence of bases of DNA or RNA in a genome. Some mutations occur during replication of the genome due to errors made by the polymerase enzymes that replicate DNA or RNA. Unlike DNA polymerase, RNA polymerase is prone to errors because it is not capable of “proofreading” its work. Viruses with RNA-based genomes, like HIV, therefore accrue mutations faster than viruses with DNA-based genomes. Because mutation and recombination provide the raw material...

Mutation, Gene Flow, and Genetic Drift

Mutation, Gene Flow, and Genetic Drift

In a population that is not at Hardy-Weinberg equilibrium, the frequency of alleles changes over time. Therefore, any deviations from the five conditions of Hardy-Weinberg equilibrium can alter the genetic variation of a given population. Conditions that change the genetic variability of a population include mutations, natural selection, non-random mating, gene flow, and genetic drift (small population size).

Mutations in Microorganisms

Mutations in Microorganisms

Mutations are heritable changes in an organism’s genome involving alterations in the base sequence of DNA or RNA. These changes can influence cellular processes and phenotypic traits, potentially transforming the unaltered wild type into a mutant form. Such changes, termed forward mutations, are pivotal in shaping the genetic diversity of organisms.RNA viruses exhibit the highest mutation rates due to the absence of robust proofreading mechanisms during genome replication. In contrast,...

Point and Frameshift Mutations

Point and Frameshift Mutations

Point mutations are genetic alterations involving the change of a single nucleotide base pair in DNA. Depending on how the alteration affects protein synthesis, they can lead to various consequences.Point mutations fall into the following types:Silent mutations occur when a nucleotide change does not alter the amino acid sequence due to the redundancy of the genetic code. For instance, changing ACC to ACA still encodes threonine, leaving the protein function unaffected. This occurs because...

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Related Experiment Video

Updated: Feb 14, 2026

Wild-type Blocking PCR Combined with Direct Sequencing as a Highly Sensitive Method for Detection of Low-Frequency Somatic Mutations

Wild-type Blocking PCR Combined with Direct Sequencing as a Highly Sensitive Method for Detection of Low-Frequency Somatic Mutations

Published on: March 29, 2017

Ultra-Sensitive Mutation Detection Technology in Myeloid Neoplasms: New Tools for Patient Monitoring.

Alessandro Ferrando¹, Valentina Bonuomo¹, Arianna Savi¹

¹Department of Clinical and Biological Sciences, University of Turin, 10124 Orbassano, Italy.

Journal of Clinical Medicine

|February 13, 2026

Summary

Ultra-sensitive molecular technologies improve the detection of low-frequency mutations in myeloid neoplasms. These advanced methods enhance diagnosis and monitoring of genetic alterations for better clinical management.

Keywords:

diagnosis myeloid neoplasms patient monitoring personalized medicine sensitivity

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Last Updated: Feb 14, 2026

Wild-type Blocking PCR Combined with Direct Sequencing as a Highly Sensitive Method for Detection of Low-Frequency Somatic Mutations

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Published on: March 29, 2017

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Published on: June 8, 2019

Detection of Invasive Pulmonary Aspergillosis in Haematological Malignancy Patients by using Lateral-flow Technology

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Published on: March 22, 2012

Area of Science:

Hematology
Molecular Biology
Oncology

Background:

Clinical management of myeloid neoplasms requires precise detection of genetic alterations.
Clinically relevant mutations are often at low variant allele frequencies, challenging conventional methods.
There is a need for advanced technologies to overcome detection limits in diagnostic workflows.

Purpose of the Study:

To provide a comprehensive review of ultra-sensitive molecular technologies for myeloid neoplasms.
To discuss the principles, advantages, and limitations of these emerging technologies.
To highlight their role in diagnosis and longitudinal monitoring.

Main Methods:

Review of established and emerging ultra-sensitive molecular technologies.
Analysis of technical principles, sensitivity, quantification, and throughput.
Discussion of clinical applicability in myeloid neoplasms.

Main Results:

Ultra-sensitive technologies enable detection of rare variants with high precision.
These methods offer improved sensitivity and quantification over conventional approaches.
Various technologies present complementary strengths for clinical use.

Conclusions:

Ultra-sensitive molecular technologies are crucial for accurate diagnosis and monitoring of myeloid neoplasms.
These advanced techniques overcome limitations of conventional methods for low-frequency mutations.
Further development and application of these technologies will advance clinical management.