CrAssphage

CrAssphage Virion

CrAssphage

Illustration of CrAssphage

CrAssphage is a type of bacteriophage that was discovered in 2014. It is a virus that infects bacteria in the human gut, specifically targeting Bacteroides species. The name "CrAssphage" stands for "cross-assembly phage," reflecting its unique genetic makeup.

Discovery

CrAssphage was first identified through metagenomic analysis of human fecal samples. Researchers found that it is one of the most abundant viruses present in the human gut microbiome. Despite its prevalence, relatively little is known about its specific interactions with host bacteria and the impact it may have on human health.

Structure and Genome

The genome of CrAssphage is approximately 97,000 base pairs long and contains genes that code for various proteins involved in viral replication and assembly. Its structure is typical of a bacteriophage, with a head containing the genetic material and a tail used for attaching to and infecting bacterial cells.

Role in the Gut Microbiome

Studies have suggested that CrAssphage may play a role in shaping the composition of the gut microbiome by influencing the abundance of Bacteroides species. These bacteria are important for maintaining gut health and performing various metabolic functions.

Future Research

Further research is needed to understand the full extent of CrAssphage's impact on the gut microbiome and human health. Investigating its interactions with host bacteria and potential therapeutic applications could provide valuable insights into the complex dynamics of the gut ecosystem.