Also found in: Wikipedia.
A complex of proteins that bind with primase at specific sequences of DNA that serve as the sites for the formation of RNA primers; a part of the replisome.
[primer + -some]
primosome(prī′mŏ-sōm″) [L. prim(ordium) + Gr. soma, body]
A multiprotein structure that makes RNA priming molecules during the replication of DNA. The primosome moves down DNA in a 3' to 5' direction.