Characterization of the three Arabidopsis thaliana RAD21 cohesins reveals differential responses to ionizing radiation

The RAD21/REC8 gene family has been implicated in sister chromatid cohesion and DNA repair in several organisms. Unlike most eukaryotes, Arabidopsis thaliana has three RAD21 gene homologues, and their cloning and characterization are reported here. All three genes, AtRAD21.1, AtRAD21.2, and AtRAD21....

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Veröffentlicht in:Journal of experimental botany. - 1985. - 57(2006), 4 vom: 01., Seite 971-83
1. Verfasser: da Costa-Nunes, J A (VerfasserIn)
Weitere Verfasser: Bhatt, A M, O'Shea, S, West, C E, Bray, C M, Grossniklaus, U, Dickinson, H G
Format: Aufsatz
Sprache:English
Veröffentlicht: 2006
Zugriff auf das übergeordnete Werk:Journal of experimental botany
Schlagworte:Journal Article Research Support, Non-U.S. Gov't Arabidopsis Proteins Chromosomal Proteins, Non-Histone Nuclear Proteins RAD21.1 protein, Arabidopsis RAD21.2 protein, Arabidopsis RAD21.3 protein, Arabidopsis RNA, Messenger
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245 1 0 |a Characterization of the three Arabidopsis thaliana RAD21 cohesins reveals differential responses to ionizing radiation 
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520 |a The RAD21/REC8 gene family has been implicated in sister chromatid cohesion and DNA repair in several organisms. Unlike most eukaryotes, Arabidopsis thaliana has three RAD21 gene homologues, and their cloning and characterization are reported here. All three genes, AtRAD21.1, AtRAD21.2, and AtRAD21.3, are expressed in tissues rich in cells undergoing cell division, and AtRAD21.3 shows the highest relative level of expression. An increase in steady-state levels of AtRAD21.1 transcript was also observed, specifically after the induction of DNA damage. Phenotypic analysis of the atrad21.1 and atrad21.3 mutants revealed that neither of the single mutants was lethal, probably due to the redundancy in function of the AtRAD21 genes. However, AtRAD21.1 plays a critical role in recovery from DNA damage during seed imbibition, prior to germination, as atrad21.1 mutant seeds are hypersensitive to radiation damage 
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700 1 |a O'Shea, S  |e verfasserin  |4 aut 
700 1 |a West, C E  |e verfasserin  |4 aut 
700 1 |a Bray, C M  |e verfasserin  |4 aut 
700 1 |a Grossniklaus, U  |e verfasserin  |4 aut 
700 1 |a Dickinson, H G  |e verfasserin  |4 aut 
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