AI Insight
Scientists have identified a human gene called BC200 that originated from a transposon, a mobile DNA element, millions of years ago and unusually retained its ability to move within the genome despite playing an important functional role in brain cells. Most genes derived from transposons lose their mobility over evolutionary time, making BC200's dual nature exceptional. Researchers also discovered BC200 sequences within a human poxvirus, indicating the gene may have transferred from infected human cells into the viral genome.
Why it matters
This discovery challenges conventional understanding of gene evolution and genomic stability, showing that functional genes can maintain mobility. The finding that BC200 can jump into viruses raises questions about gene transfer between human cells and pathogens, which could have implications for understanding viral evolution and host-pathogen interactions.
Understand the Science
Scientists have discovered a human gene with a remarkable double life: it appears to play an important role in brain cells while still retaining the ability to jump around the genome. Called BC200, the gene evolved millions of years ago from a mobile piece of DNA known as a transposon, but unlike most genes that arose this way, it never lost its mobility. Researchers even found BC200 embedded inside a human poxvirus, suggesting it may have jumped from infected skin cells into the virus.
Source: Scientists discover a human brain gene that can jump through DNA