umls-concept:C0032136 | skos:definition | CSP: double-strand, closed DNA molecules found in cytoplasm of a variety of bacterial species that generally confer some evolutionary advantage to the host cells.,MSH: Extrachromosomal, usually CIRCULAR DNA molecules that are self-replicating and transferable from one organism to another. They are found in a variety of bacterial, archaeal, fungal, algal, and plant species. They are used in GENETIC ENGINEERING as CLONING VECTORS.,NCI: A small cellular inclusion consisting of a ring of DNA that is not in a chromosome but is capable of autonomous replication. | lld:umls |