The 7.5-kb plasmid present in Chlamydia trachomatis is not essential for the growth of this microorganism

Plasmid. 1990 Mar;23(2):144-8. doi: 10.1016/0147-619x(90)90033-9.


An L2 serovar of Chlamydia trachomatis, isolated from a patient with proctocolitis, has been identified that does not contain the common C. trachomatis 7.5-kb plasmid. This isolate was propagated in vitro showing that this plasmid is not required for the growth of C. trachomatis.

Publication types

  • Research Support, U.S. Gov't, P.H.S.

MeSH terms

  • Base Sequence
  • Chlamydia trachomatis / genetics*
  • Chlamydia trachomatis / growth & development
  • DNA Probes
  • DNA, Bacterial / genetics
  • DNA, Bacterial / isolation & purification
  • Molecular Sequence Data
  • Oligonucleotide Probes
  • Plasmids*
  • Polymerase Chain Reaction
  • Restriction Mapping


  • DNA Probes
  • DNA, Bacterial
  • Oligonucleotide Probes