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Related Concept Videos

Production of Antibiotics01:27

Production of Antibiotics

Penicillin, one of the earliest and most widely used antibiotics, is produced industrially by the filamentous fungus Penicillium chrysogenum. Large stirred-tank bioreactors ranging from tens to hundreds of thousands of liters maintain tightly controlled temperature, pH, and dissolved oxygen conditions to support fungal metabolism and maximize antibiotic yield. Penicillin is a secondary metabolite, synthesized primarily during the stationary growth phase, which requires a carefully managed...
Antibiotic Selection00:57

Antibiotic Selection

Overview
Combined Effects of Drugs: Synergism01:27

Combined Effects of Drugs: Synergism

Synergism is a useful mechanism where combining two or more drugs is more effective than each constituent used alone. Such combinations are also called supra-additive interactions. The drugs collectively enhance the final therapeutic effect by acting on different targets. Another advantage is that the low dose of each constituent drug is sufficient to achieve the desired effect. This helps reduce the duration of therapy and lower the adverse effects of these drugs.
Such synergistic combinations...
Clinical Significance of Antibiotic Resistance01:25

Clinical Significance of Antibiotic Resistance

Methicillin-resistant Staphylococcus aureus (MRSA) presents a critical public health threat, arising from its capacity to resist β-lactam antibiotics due to acquisition of the mecA gene within the staphylococcal cassette chromosome mec (SCCmec). This gene encodes penicillin-binding protein 2a (PBP2a), which impairs binding efficacy of methicillin and other β-lactams. MRSA has evolved into distinct clonal lineages impacting humans and animals alike, reinforcing its significance within the One...
Development of Antibiotic Resistance01:30

Development of Antibiotic Resistance

Antibiotic resistance is a major public health concern that arises when bacteria evolve mechanisms to withstand the effects of antibiotic treatments. This resistance can be intrinsic, acquired through genetic mutations, or transferred between bacteria via horizontal gene transfer. The development of antibiotic resistance poses significant challenges in treating bacterial infections and necessitates ongoing research to develop new therapeutic strategies.Intrinsic resistance occurs when bacterial...
Antimicrobial Effectiveness01:28

Antimicrobial Effectiveness

The effectiveness of antimicrobial agents depends on various factors influencing their ability to eliminate microbial populations. Larger microbial populations require more time for complete eradication, emphasizing the importance of population size analysis when evaluating antimicrobial efficacy.Microbial resistance to antimicrobial agents varies significantly. Highly resilient microorganisms include endospores, gram-negative bacteria, and non-enveloped viruses, while prions are exceptionally...

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Related Experiment Video

Updated: May 13, 2026

Antibiotic Dereplication Using the Antibiotic Resistance Platform
10:49

Antibiotic Dereplication Using the Antibiotic Resistance Platform

Published on: October 17, 2019

Combing databases reveals potential antibiotic producers.

Vipin Chandra Kalia1, Asha Rani, Sadhana Lal

  • 1Institute of Genomics & Integrative Biology, (CSIR), Delhi University Campus, Mall Road, Delhi - 110007, India Tel: +91 11 27666156 27662133 extn 132; Fax: +91 11 27667471 27416489.

Expert Opinion on Drug Discovery
|March 19, 2013
PubMed
Summary
This summary is machine-generated.

Antibiotic resistance is a growing problem. New strategies, including mining genomic databases and using recombinant DNA technology, are essential for discovering novel antibacterial drugs.

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Last Updated: May 13, 2026

Antibiotic Dereplication Using the Antibiotic Resistance Platform
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05:33

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Area of Science:

  • Microbiology
  • Biotechnology
  • Drug Discovery

Background:

  • The widespread use of antibiotics has led to the evolution of microbial resistance.
  • This resistance poses a significant challenge to public health and pharmaceutical economics.
  • Innovative approaches are crucial to sustain investment in antibiotic development.

Purpose of the Study:

  • To explore novel strategies for discovering new antibacterial agents.
  • To leverage advancements in genomic and metabolic databases for drug discovery.
  • To identify and engineer organisms for the production of antibiotics.

Main Methods:

  • Utilizing large-scale metabolic and genomic databases for organism identification.
  • Employing bioinformatics to trace potential antibiotic-producing microorganisms.
  • Applying recombinant DNA technology to engineer non-producer organisms into antibacterial producers.

Main Results:

  • Identification of potential natural producers of penicillin and cephalosporin.
  • Discovery of organisms that can be modified to produce antibiotics.
  • Demonstration of the feasibility of using genomic data for novel antibiotic discovery.

Conclusions:

  • Genomic and metabolic databases are valuable resources for identifying novel antibiotic producers.
  • Recombinant DNA technology offers a viable method for engineering new antibacterial agents.
  • Innovative approaches are necessary to combat antibiotic resistance and ensure future drug development.