Moraxella catarrhalis strain COPD_M139

Moraxella catarrhalis strain COPD_M139 is a Gram-negative bacterium that primarily inhabits host-associated environments. This strain exhibits a cocci shape and is classified as an aerobe, indicating that it requires oxygen for growth. It does not exhibit mobility, and while it possesses flagella, its lack of movement suggests that these structures may not play a significant role in its ecological niche. The strain is mesophilic, thriving in moderate temperature ranges, and has a single replicon, which is characteristic of its genome organization. Moraxella catarrhalis is known to have two membranes, typical of Gram-negative bacteria, providing a barrier that can affect interactions with the host and environmental factors. This bacterium has been identified in various hosts, including Homo sapiens (humans), Macaca mulatta (rhesus monkeys), and Chinchilla, indicating its adaptability to different biological environments. Moraxella catarrhalis strain COPD_M139 is associated with several health complications, notably respiratory infections, otitis media, and exacerbations of chronic obstructive pulmonary disease (COPD). It is implicated in various respiratory tract infections, including sinusitis and middle ear infections, particularly in children. The biotic relationship of Moraxella catarrhalis is classified as free-living, suggesting that it may exist independently in its environment but can also be opportunistic in causing infections in its hosts. This duality highlights its role in both human health as a pathogen and its ability to persist in diverse ecological niches. Understanding its characteristics can help inform treatment strategies for the infections it causes.