mitosome


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mitosome

(mī'tō-sōm),
A small mitochondrial organelle of Giardia, Entomoeba, and some microsporidia involved in Fe-S cluster assembly, an essential ATP-generating step in these organisms.
[mitochondrion + G. sōma, body]

mitosome

(mī′tō-sōm) [Gr. mitos, thread, + soma, body]
A stainable portion of the spindle fibers following mitosis.
References in periodicals archive ?
Entamoebas have a mitochondrion-derived organelle called the crypton or mitosome, while the giardial gene encoding a 60-kDa chaperonin appears to be endosymbiont-derived, but no organelle has been identified (Clark and Roger, 1995; Roger et al., 1998; Mai et al., 1999; Tovar et al., 1999; Ghosh et al., 2000).
The mitosome, a novel organelle related to mitochondria in the amitochondriate parasite Entamoeba histolytica.
Twin [CX.sub.9]C proteins were found to be conserved across the organisms included in the study, except for three obligate intercellular parasites that contain mitosomes. The evolutionary conservation across organisms containing true mitochondria suggested that these [CX.sub.9]C proteins are important in mitochondrial function and, indeed, members of this family operate as subunits in complexes I and IV of the electron transport chain (ETC), as cytochrome c oxidase (COX) assembly factors, and they participate in mitochondrial protein import, structure, and function.