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In eukaryotes, cellular energy in the form of ATP is produced in the cytosol via glycolysis or in the mitochondria via oxidative
phosphorylation and, in photosynthetic organisms, in the chloroplast via photophosphorylation. Transport of adenine nucleotides
among cell compartments is essential and is performed mainly by members of the mitochondrial carrier family, among which the
ADP/ATP carriers are the best known. This work reviews the carriers that transport adenine nucleotides into the organelles
of eukaryotic cells together with their possible functions. We focus on novel mechanisms of adenine nucleotide transport,
including mitochondrial carriers found in organelles such as peroxisomes, plastids, or endoplasmic reticulum and also mitochondrial
carriers found in the mitochondrial remnants of many eukaryotic parasites of interest. The extensive repertoire of adenine
nucleotide carriers highlights an amazing variety of new possible functions of adenine nucleotide transport across eukaryotic
organelles. 相似文献
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D. Puzzolo M. A. La Fauci A. Micali G. Putorti A. Arco 《Cellular and molecular life sciences : CMLS》1984,40(9):955-956
Summary By means of light and scanning electron microscopy evidence of the existence of a normally organized choroid in the eye of the eel,Anguilla anguilla, is presented. 相似文献
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New mitochondrial carriers: an overview 总被引:4,自引:0,他引:4
The transport of metabolites, nucleotides and cofactors across the mitochondrial inner membrane is performed by members of mitochondrial carrier family (MCF). These proteins share marked structural features that have made feasible the functional characterization of numerous MCs in the last years. The MCs responsible for transport activities in mitochondria known for decades such as glutamate uptake or ATP-Mg/Pi exchange have recently been identified as well as novel carriers such as those involved in S-adenosylmethionine or thiamine pyrophosphate uptake. Here, after a brief review of the novel data on structural characteristics and import mechanisms of MCF members, we present an exhaustive compilation of human MC sequences, including previously characterized carriers, together with their respective Saccharomyces cerevisiae orthologues, ordered according to the phylogenetic analysis of el Moualij and co-workers [Yeast (1997) 13: 573-581]. We have detected the existence of at least 49 human MC sequences, including those of yet unknown function. An overview of novel MCF members functionally characterized in recent years in mammals and in yeast genomes is presented. 相似文献
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Consensus supertrees: The synthesis of rooted trees containing overlapping sets of labeled leaves 总被引:2,自引:2,他引:0
AD Gordon 《Journal of Classification》1986,3(2):335-348
Given two dendrograms (rooted tree diagrams) which have some but not all of their base points in common, a supertree is a dendrogram from which each of the original trees can be regarded as samples The distinction is made between inconsistent and consistent sample trees, defined by whether or not the samples provide contradictory information about the supertree An algorithm for obtaining the strict consensus supertree of two consistent sample trees is presented, as are procedures for merging two inconsistent sample trees Some suggestions for future work are made 相似文献
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