FIG. 5.

Strain typing of M. genitalium sequences derived from cervical samples from women persistently infected with M. genitalium, suggesting that participant no. 10139 was infected with a single strain that can be distinguished from other strains present in this population during the same time period. Participant identification numbers and dates of sample collection are shown to the left. Dashed lines indicate sequence identity to the published G-37^T sequence, between bp 221 and 380 of mgpB. Bases shaded in black are those previously shown to distinguish M. genitalium strains, which therefore serve as the basis of the strain typing system (29). For participant no. 10139, five clones were sequenced per cervical sample, while a minimum of three clones were sequenced from other persistently infected women; all sequences obtained from a given woman were identical. Sequences (with GenBank accession numbers) are as follows: 10139, DQ248092; 10046, DQ248087; 10081, DQ248088; 10089, DQ248089; 10090, DQ248090; 10114, DQ248091; 10163, DQ248093; 10177, DQ248094; 10274, DQ248095.