Related Experiment Video
Updated: Feb 11, 2026

Use of the Protease Fluorescent Detection Kit to Determine Protease Activity
Published on: August 4, 2009
[Progress on the functions of extracellular proteases from Stenotrophomonas maltophilia - A review]
Abstract:
Stenotrophomonas maltophilia is a gram-negative bacilli, widely distributed in the natural environments. As a novel, conditional pathogenic bacterium associated with high mortality, S. maltophilia could infect human or other organisms. In recent years, more and more studies have shown that extracellular proteases from bacteria are the key proteins which could lead to the incidence of hosts. Therefore, to explore the compositions and functions of extracellular proteases from S. maltophilia will not only help elucidate the pathogenic mechanisms, but also provide information on using them as the targets during the clinical treatment in the near future. This paper summarizes the characterizations, functions and applications of the extracellular proteases from S. maltophilia.
Insights
Stenotrophomonas maltophilia extracellular proteases are key to host infections. Understanding these proteases aids in elucidating pathogenic mechanisms and developing future clinical treatments targeting this bacterium.
Area of Science:
- Microbiology
- Biochemistry
Background:
- Stenotrophomonas maltophilia is a Gram-negative bacillus found in natural environments.
- It is an opportunistic pathogen linked to high mortality rates in infected hosts.
- Extracellular bacterial proteases are increasingly recognized as critical virulence factors.
Purpose of the Study:
- To investigate the characteristics and functions of extracellular proteases produced by S. maltophilia.
- To understand the role of these proteases in the pathogenesis of S. maltophilia infections.
- To identify potential therapeutic targets for clinical treatment.
Main Methods:
- Literature review and summary of existing research on S. maltophilia extracellular proteases.
- Analysis of reported studies on protease characterization (e.g., enzyme activity, substrate specificity).
- Review of functional studies linking proteases to host-pathogen interactions.
Main Results:
- Extracellular proteases from S. maltophilia contribute significantly to its pathogenicity.
- These enzymes can degrade host tissues and interfere with immune responses.
- Specific proteases have been identified with varying substrate specificities and roles.
Conclusions:
- Extracellular proteases are crucial virulence factors of Stenotrophomonas maltophilia.
- Further research into these proteases can reveal novel therapeutic strategies.
- Targeting S. maltophilia proteases may offer a promising approach for clinical intervention.
Related Concept Videos
Review and Preview
Percentiles are a type of fractile that partition data into...
Review and Preview
Tumor Progression
Colon cancer is one of the best-documented examples of tumor progression. Early mutation in the APC gene in colon cells causes a small growth on the colon wall called a polyp. With time, this polyp grows into a benign, pre-cancerous tumor. Further...
The Extracellular Matrix
The Extracellular Matrix
In order to maintain tissue organization, many animal cells are surrounded by structural molecules that make up the extracellular matrix (ECM). Together, the molecules in the ECM maintain the structural integrity of tissue as well as the remarkable specific properties of certain tissues.
Composition of the Extracellular Matrix
The extracellular matrix (ECM) is commonly composed of ground substance, a gel-like fluid, fibrous components, and many structurally and functionally diverse...
mTOR Signaling and Cancer Progression
The mTOR pathway or the...

