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20231223105641.0 |
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231223s2006 xx ||||| 00| ||eng c |
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|a pubmed24n0553.xml
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|a (DE-627)NLM165887087
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|a (NLM)17030539
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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 |
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|a Borén, Mats
|e verfasserin
|4 aut
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|a Developmental regulation of a VEIDase caspase-like proteolytic activity in barley caryopsis
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|c 2006
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|a Text
|b txt
|2 rdacontent
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|a ohne Hilfsmittel zu benutzen
|b n
|2 rdamedia
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|a Band
|b nc
|2 rdacarrier
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| 500 |
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|a Date Completed 27.02.2007
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|a Date Revised 14.11.2006
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Caspases are essential in animal programmed cell death both as initiator and executioner proteases. Plants do not have close caspase homologues, but several instances of caspase-like proteolytic activity have been demonstrated in connection with programmed cell death in plants. It was asked if caspase-like proteases are involved during development of the barley caryopsis. The presence of a caspase-6-like proteolytic activity that preferentially cleaved the sequence VEID was demonstrated. A range of protease inhibitors was tested and only caspase-specific inhibitors showed major inhibitory effects. The profile of VEIDase activity in developing starchy endosperm, embryo, and whole caryopsis was measured and showed a general trend of higher activity in young, rapidly developing tissues. The VEIDase activity was localized in vivo to vesicles, shown to be autophagosomes, in randomly distributed cells of the starchy endosperm. The VEIDase activity detected in barley caryopsis is similar to activities described previously in mammals, spruce, yeast, and thale cress. In mammals, spruce, and yeast, VEIDase activity has been shown to be positively correlated with the occurrence of programmed cell death. Several manifestations of programmed cell death exist in developing barley caryopsis, indicating a connection between VEIDase activity and developmental programmed cell death in barley
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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| 650 |
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|a Plant Proteins
|2 NLM
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| 650 |
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|a Caspases
|2 NLM
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| 650 |
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|a EC 3.4.22.-
|2 NLM
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| 700 |
1 |
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|a Höglund, Anna-Stina
|e verfasserin
|4 aut
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| 700 |
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|a Bozhkov, Peter
|e verfasserin
|4 aut
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| 700 |
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|a Jansson, Christer
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Journal of experimental botany
|d 1985
|g 57(2006), 14 vom: 08., Seite 3747-53
|w (DE-627)NLM098182706
|x 1460-2431
|7 nnns
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| 773 |
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|g volume:57
|g year:2006
|g number:14
|g day:08
|g pages:3747-53
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|a AR
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|d 57
|j 2006
|e 14
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|h 3747-53
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