Related Experiment Video

Updated: Feb 11, 2026

Quantifying the Cytotoxicity of Staphylococcus aureus Against Human Polymorphonuclear Leukocytes
12:27

Quantifying the Cytotoxicity of Staphylococcus aureus Against Human Polymorphonuclear Leukocytes

Published on: January 3, 2020

6.8K

The grIA Mutation in Norfloxacin-Resistant First-Step Mutants and Clinical Isolates of Staphylococcus aureus

Hideyuki Fukuda1, Satoshi Hori2, Keiichi Hiramatsu2

  • 1Central Research Laboratories, Kyorin Pharmaceutical Co Ltd, Tochigi, Japan; Department of Bacteriology, Juntendo University, Tokyo, Japan.

Journal of Infection and Chemotherapy : Official Journal of the Japan Society of Chemotherapy
|April 24, 2018
PubMed

Keywords:
Staphylococcus aureusgrIA mutationquinoloneresistancetopoisomerase IV

More Related Videos

Subcutaneous Infection of Methicillin Resistant Staphylococcus Aureus MRSA12:18

Subcutaneous Infection of Methicillin Resistant Staphylococcus Aureus MRSA

Published on: February 9, 2011

23.7K
Genotyping of Staphylococcus aureus by Ribosomal Spacer PCR RS-PCR08:51

Genotyping of Staphylococcus aureus by Ribosomal Spacer PCR RS-PCR

Published on: November 4, 2016

10.2K

Related Concept Videos

Mutations01:39

Mutations

Overview
94.6K
Mutations01:35

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...
44.7K
Viral Mutations00:36

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...
40.0K
Mutation, Gene Flow, and Genetic Drift01:09

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).
64.6K
Point and Frameshift Mutations01:30

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...
1.2K
Mutations in Microorganisms01:18

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,...
780