Endogenous retrovirus

（重定向自Endogenous virus）

Endogenous retroviruses (ERVs) are endogenous viral elements in the genome that closely resemble and can be derived from retroviruses. They are abundant in the genomes of jawed vertebrates, and they comprise up to 5–8% of the human genome (lower estimates of ~1%). ERVs are a subclass of a type of gene called a transposon, which can be packaged and moved within the genome to serve a vital role in gene expression and in regulation. Researchers have suggested that retroviruses evolved from a type of transposable gene called a retrotransposon, which includes ERVs; these genes can mutate and instead of moving to another location in the genome they can become exogenous or pathogenic. This means that not all ERVs may have originated as an insertion by a retrovirus but that some may have been the source for the genetic information in the retroviruses they resemble.

单词	Endogenous virus
释义	Endogenous virus 英语百科 Endogenous retrovirus （重定向自Endogenous virus） Endogenous retroviruses (ERVs) are endogenous viral elements in the genome that closely resemble and can be derived from retroviruses. They are abundant in the genomes of jawed vertebrates, and they comprise up to 5–8% of the human genome (lower estimates of ~1%). ERVs are a subclass of a type of gene called a transposon, which can be packaged and moved within the genome to serve a vital role in gene expression and in regulation. Researchers have suggested that retroviruses evolved from a type of transposable gene called a retrotransposon, which includes ERVs; these genes can mutate and instead of moving to another location in the genome they can become exogenous or pathogenic. This means that not all ERVs may have originated as an insertion by a retrovirus but that some may have been the source for the genetic information in the retroviruses they resemble.
随便看	Rhythmicon rhythmicons rhythmic paradoxical eruption rhythmic pattern rhythmic percipitation rhythmic precipitation rhythmic production rhythmic pulsation rhythmic pulse rhythmic reaction rhythmic respiration rhythmic response rhythmics rhythmic sedimentation Rhythmic segmenting contraction of small bowel rhythmic sensory bombardment therapy rhythmic spasm of pharyngopalatine muscle rhythmic stabilization rhythmic stratification rhythmic structure rhythmic succession rhythmic time signal rhythmic time signals rhythmic tissue Rhythmic unit