Category:SO:0000154 ! PAC
id: SO:0000154
name: PAC
def: "The P1-derived artificial chromosome are DNA constructs that are derived from the DNA of P1 bacteriophage. They can carry large amounts (about 100-300 kilobases) of other sequences for a variety of bioengineering purposes. It is one type of vector used to clone DNA fragments (100- to 300-kb insert size; average, 150 kb) in Escherichia coli cells." [1]
comment: This term is mapped to MGED. Do not obsolete without consulting MGED ontology. Drosophila melanogaster PACs carry an average insert size of 80 kb. The library represents a 6-fold coverage of the genome.
synonym: "P1" EXACT []
synonym: "P1 artificial chromosome" EXACT []
xref: http://en.wikipedia.org/wiki/P1-derived_artificial_chromosome "wiki"
is_a: SO:0000440 ! vector_replicon
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