Sentences with phrase «sequenced immune system genes»
As Wroblewski, Parham, and co-authors explain in a PLOS Biology study published online today, they analyzed stool samples dating back 15 years and sequenced immune system genes from 125 chimpanzees.
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Lo was encouraged by the variants because retroviruses are extremely mutable pathogens that change their gene sequences again and again in response to immune system efforts to kill them.
When they sequenced the complete genomes of the Y. pestis DNA in those seven individuals, the team found that the bacterial genomes from the earliest samples lacked two genes that helped Y. pestis evade the immune systems of humans and fleas during the Black Death.
«In addition, many of the high - frequency sequences span genes involved in the immune system, which is a frequent target of adaptive evolution.»
For example, when the researchers decoded the complete sequence of one extrachromosomal circular phage from a disease - causing Staphylococcus, they identified a number of genes that may help this strain evade a host's immune system and that could readily spread to other Staphylococcus bacteria.
All seven were located in or near complement genes (that's «complement» as in the innate immune system complex), which had been implicated in AMD by sequencing studies over the past couple of years.