Lactobacillus iners  Lactobacillus iners is a species in the genus "Lactobacillus". It is a Gram-positive, catalase-negative, facultatively anaerobic rod-shaped bacterium with type strain CCUG 28746T. "Lactobacillus iners" is a normal inhabitant of the lower reproductive tract in healthy women. The genomes of at least 15 strains have been sequenced and encode between 1,152 and 1,506 proteins. Thus, this species has one of the smallest "Lactobacillus" genomes compared to other species, such as "L. crispatus", which typically encodes more than twice as many proteins.