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Related Concept Videos

Genomic DNA in Prokaryotes00:46

Genomic DNA in Prokaryotes

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The genome of most prokaryotic organisms consists of double-stranded DNA organized into one circular chromosome in a region of cytoplasm called the nucleoid. The chromosome is tightly wound, or supercoiled, for efficient storage. Prokaryotes also contain other circular pieces of DNA called plasmids. These plasmids are smaller than the chromosome and often carry genes that confer adaptive functions, such as antibiotic resistance.
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Prokaryotes are small unicellular organisms that include the domains—Archaea and Bacteria. Bacteria include many common organisms, such as Salmonella and E. coli, while the Archaea include extremophiles that live in harsh environments, such as volcanic springs.
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Prokaryotic genomes exhibit a streamlined organization of coding and non-coding regions essential for gene expression and protein synthesis. While coding regions contain the genetic instructions for proteins or functional RNAs, non-coding regions regulate the precise transcription and translation of these genes.Coding Regions: Proteins and RNAsThe primary coding regions, known as structural genes, include sequences transcribed into messenger RNA (mRNA) and ultimately translated into...
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Bacterial Phylum Proteobacteria

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Prokaryotic and eukaryotic cells represent two fundamental types of cellular organization, differing significantly in structure, complexity, and function. These distinctions underpin the biological diversity seen across domains of life.Prokaryotic Cell CharacteristicsProkaryotic cells, exemplified by bacteria and archaea, are structurally simple and lack membrane-bound organelles, including a nucleus. Their genetic material consists of a single, circular DNA molecule in the nucleoid region,...
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Diversity of Archaea I01:30

Diversity of Archaea I

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Archaea, a domain of single-celled microorganisms, are classified into five major phyla based on genetic and biochemical characteristics: Euryarchaeota, Crenarchaeota, Thaumarchaeota, Korarchaeota, and Nanoarchaeota. Among these, the phylum Euryarchaeota is notable for its remarkable diversity in morphology, metabolism, and ecological adaptations.Morphological and Metabolic DiversityMembers of Euryarchaeota exhibit a variety of cellular shapes, including rods and cocci. Their metabolic pathways...
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Updated: Jun 9, 2025

Heuristic Mining of Hierarchical Genotypes and Accessory Genome Loci in Bacterial Populations
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BacDive in 2025: the core database for prokaryotic strain data.

Isabel Schober1, Julia Koblitz1, Joaquim Sardà Carbasse1

  • 1Leibniz Institute DSMZ - German Collection of Microorganisms and Cell Cultures, Braunschweig, Germany.

Nucleic Acids Research
|October 29, 2024
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Summary
This summary is machine-generated.

The BacDive database now offers extensive bacterial and archaeal strain information, featuring over 2.6 million data points. Its growth is fueled by new data integrations and advanced search capabilities, supporting AI-driven predictions.

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Area of Science:

  • Microbiology
  • Bioinformatics
  • Data Science

Background:

  • BacDive is a leading database for bacterial and archaeal strain information, established over a decade ago.
  • It is recognized as an ELIXIR Core Data Resource and a Global Core Biodata Resource.
  • The database covers diverse prokaryotic phenotypic data, including taxonomy, morphology, physiology, and cultivation.

Purpose of the Study:

  • To report on the current state and growth of the BacDive database.
  • To highlight new features and data integrations enhancing its utility.
  • To showcase the database's role in advancing microbial research and AI applications.

Main Methods:

  • Integration of the world's largest collection of Analytical Profile Index (API) test results.
  • Development of a novel BacDive knowledge graph with SPARQL endpoint for advanced querying.
  • Utilizing AI models for genome-based predictions to fill data gaps.

Main Results:

  • The current release (2023.2) contains 2.6 million data points on 97,334 strains, a 52% increase since 2021.
  • Full integration and searchability of API test results.
  • Implementation of a knowledge graph enabling federated searches across multiple data sources.

Conclusions:

  • BacDive has significantly expanded its content and functionalities, solidifying its position as a key resource.
  • The database's high-quality data supports AI model training and genome-based predictions.
  • BacDive is crucial for advancing research in microbial diversity and data-driven biological discovery.