| Autor: |
Simone Trabalza, Roberto Buonaurio, Alberto Del Pino, Carlo Palmerini, Harrold van den burg, Chiaraluce Moretti |
| Jazyk: |
angličtina |
| Rok vydání: |
2021 |
| Předmět: |
|
| Zdroj: |
Bio-Protocol, Vol 11, Iss 6 (2021) |
| Druh dokumentu: |
article |
| ISSN: |
2331-8325 |
| DOI: |
10.21769/BioProtoc.3949 |
| Popis: |
Calcium signaling is an emerging mechanism by which bacteria respond to environmental cues. To measure the intracellular free-calcium concentration in bacterial cells, [Ca2+]i, a simple spectrofluorometric method based on the chemical probe Fura 2-acetoxy methyl ester (Fura 2-AM) is here presented using Pseudomonad bacterial cells. This is an alternative and quantitative method that can be completed in a short period of time with low costs, and it does not require the induction of heterologously expressed protein-based probes like Aequorin. Furthermore, it is possible to verify the properties of membrane channels involved in Ca2+ entry from the extracellular matrix. This method is in particular valuable for measuring [Ca2+]i in the range of 0.1-39.8 µM in small cells like those of prokaryotes. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
|
