Handling heme: The mechanisms underlying the movement of heme within and between cells.
Handling heme: The mechanisms underlying the movement of heme within and between cells.
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DOI:
10.1016/j.freeradbiomed.2018.08.005
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发表时间:
2019-03
影响因子:
7.4
通讯作者:
Reddi AR
中科院分区:
文献类型:
--
作者:
Donegan RK;Moore CM;Hanna DA;Reddi AR
Heme is an essential cofactor and signaling molecule required for virtually all aerobic life. However, excess heme is cytotoxic. Therefore, heme must be safely transported and trafficked from the site of synthesis in the mitochondria or uptake at the cell surface, to hemoproteins in most subcellular compartments. While heme synthesis and degradation are relatively well characterized, little is known about how heme is trafficked and transported throughout the cell. Herein, we review eukaryotic heme transport, trafficking, and mobilization, with a focus on factors that regulate bioavailable heme. We also highlight the role of gasotransmitters and small molecules in heme mobilization and bioavailability, and heme trafficking at the host-pathogen interface.
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