RT info:eu-repo/semantics/article T1 Use of aequorin-based indicators for monitoring Ca2+ in acidic organelles A1 Alonso Alonso, María Teresa A1 Torres Vidal, Patricia A1 Calvo Rodríguez, Belén A1 Rodriguez, C A1 Río Lorenzo, Alba del A1 Rojo Ruiz, Jonatan A1 García-Sancho Martín, Francisco Javier A1 Patel, S K1 Biología celular K1 Biochemistry K1 Subcellular Ca2+ K1 Organelle K1 Luminescence K1 Acidic K1 Ca2+ subcelular K1 Orgánulo K1 Luminiscencia K1 Ácido K1 2302.21 Biología Molecular K1 2407 Biología Celular AB Over the last years, there is accumulating evidence that acidic organelles can accumulate and release Ca2+ upon cell activation. Hence, reliable recording of Ca2+ dynamics in these compartments is essential for understanding the physiopathological aspects of acidic organelles. Genetically encoded Ca2+ indicators (GECIs) are valuable tools to monitor Ca2+ in specific locations, although their use in acidic compartments is challenging due to the pH sensitivity of most available fluorescent GECIs. By contrast, bioluminescent GECIs have a combination of features (marginal pH sensitivity, low background, no phototoxicity, no photobleaching, high dynamic range and tunable affinity) that render them advantageous to achieve an enhanced signal-to-noise ratio in acidic compartments. This article reviews the use of bioluminescent aequorin-based GECIs targeted to acidic compartments. A need for more measurements in highly acidic compartments is identified. PB Elsevier SN 0167-4889 YR 2023 FD 2023 LK https://uvadoc.uva.es/handle/10324/59558 UL https://uvadoc.uva.es/handle/10324/59558 LA eng NO Biochimica et Biophysica Acta (BBA) - Molecular Cell Research, 2023, vol. 1870, Issue 6, 119481 NO Producción Científica DS UVaDOC RD 12-sep-2024