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SEQUENCE ONTOLOGY - ANNOTATIONS

The Sequence Types and Features Ontology (SO) is downloaded weekly from the SourceForge CVS repository at http://song.cvs.sourceforge.net/viewvc/song/ontology/. For more information about this ontology, see the Sequence Ontology Home Page at http://www.sequenceontology.org/.
Term:PAC
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Accession:SO:0000154 term browser browse the term
Definition: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.
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.
Synonyms:exact_synonym: P1;   P1 artificial chromosome
 xref: http://en.wikipedia.org/wiki/P1-derived_artificial_chromosome "wiki"


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Term paths to the root
Path 1
Term Annotations click to browse term
  SO ontology 0
    sequence_feature 0
      region 0
        biological_region 0
          replicon 0
            vector_replicon 0
              PAC 0
                PAC_end 0
Path 2
Term Annotations click to browse term
  SO ontology 0
    sequence_feature 0
      region 0
        biomaterial_region 0
          reagent 0
            clone 0
              vector_replicon 0
                PAC 0
                  PAC_end 0
paths to the root