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231223s2011 xx |||||o 00| ||eng c |
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|a 10.1093/jxb/erq269
|2 doi
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|a pubmed24n0678.xml
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|a (DE-627)NLM203286707
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|a (NLM)21041373
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
1 |
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|a Steinebrunner, Iris
|e verfasserin
|4 aut
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| 245 |
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|a HCC1, the Arabidopsis homologue of the yeast mitochondrial copper chaperone SCO1, is essential for embryonic development
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|c 2011
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Completed 14.03.2011
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|a Date Revised 10.12.2019
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a The Arabidopsis HCC1 gene is a homologue of the copper chaperone SCO1 from the yeast Saccharomyces cerevisiae. SCO1 (synthesis of cytochrome c oxidase 1) encodes a mitochondrial protein that is essential for the correct assembly of complex IV in the respiratory chain. GUS analyses showed HCC1 promoter activity in vascular tissue, guard cells, hydathodes, trichome support cells, and embryos. HCC1 function was studied in two hcc1 T-DNA insertion lines, hcc1-1 and hcc1-2. Gametophyte development was not affected by the disruption of HCC1, but homozygous hcc1-1 and hcc1-2 embryos became arrested at various developmental stages, mostly at the heart stage. Both the wild-type HCC1 gene and the modified gene coding for the C-terminally SNAP-tagged HCC1 were able to complement the embryo-lethal phenotype of the hcc1-1 line. Localization of the SNAP-tagged HCC1 in transgenic lines identified HCC1 as a mitochondrial protein. To determine if HCC1 is a functional homologue to Sco1p, the respiratory-deficient yeast sco1 mutant was transformed with chimeric constructs containing different combinations of HCC1 and SCO1 sequences. One of the resulting chimeric proteins restored respiration in the yeast mutant. This protein had the N-terminal mitochondrial targeting signal and the single transmembrane domain derived from Sco1p and the C-terminal half (including the copper-binding motif) derived from HCC1. Growth of the complemented yeast mutant was enhanced by the addition of copper to the medium. The data demonstrate that HCC1 is essential for embryo development in Arabidopsis, possibly due to its role in cytochrome c oxidase assembly
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|a Journal Article
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|a Arabidopsis Proteins
|2 NLM
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|a Cation Transport Proteins
|2 NLM
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|a Copper Transport Proteins
|2 NLM
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|a HCC1 protein, Arabidopsis
|2 NLM
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|a Membrane Proteins
|2 NLM
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|a Mitochondrial Proteins
|2 NLM
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|a Molecular Chaperones
|2 NLM
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|a SCO1 protein, S cerevisiae
|2 NLM
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| 650 |
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|a Saccharomyces cerevisiae Proteins
|2 NLM
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| 650 |
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|a Copper
|2 NLM
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| 650 |
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|a 789U1901C5
|2 NLM
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| 700 |
1 |
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|a Landschreiber, Marlen
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Krause-Buchholz, Udo
|e verfasserin
|4 aut
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| 700 |
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|a Teichmann, Juliane
|e verfasserin
|4 aut
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| 700 |
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|a Rödel, Gerhard
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Journal of experimental botany
|d 1985
|g 62(2011), 1 vom: 01. Jan., Seite 319-30
|w (DE-627)NLM098182706
|x 1460-2431
|7 nnns
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| 773 |
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|g volume:62
|g year:2011
|g number:1
|g day:01
|g month:01
|g pages:319-30
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|u http://dx.doi.org/10.1093/jxb/erq269
|3 Volltext
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