2003
DOI: 10.1016/s0167-4781(02)00596-1
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Isolation and functional analysis of the 5′-flanking region of carrot top1β gene coding for the β isoform of DNA topoisomerase I

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Cited by 6 publications
(2 citation statements)
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“…However, the expression level increased from G1 onwards, attaining a maximum during S phase for TopI (Mudgil et al, 2002). This observation agrees with recent data suggesting that the TopIβ gene promoter, whose activity is low in carrot protoplasts arrested by starvation in G 0 /G 1 , is activated when protoplasts are induced to re-enter the cell cycle during the G1/S phase (Balestrazzi et al, 2003). The expression pattern of TopII transcript increases approximately three-fold during S-phase and eight-fold during the G2/M phase (B. N. Singh et al, unpublished data).…”
Section: A Cell Cycle Stage-specific Regulationsupporting
confidence: 92%
“…However, the expression level increased from G1 onwards, attaining a maximum during S phase for TopI (Mudgil et al, 2002). This observation agrees with recent data suggesting that the TopIβ gene promoter, whose activity is low in carrot protoplasts arrested by starvation in G 0 /G 1 , is activated when protoplasts are induced to re-enter the cell cycle during the G1/S phase (Balestrazzi et al, 2003). The expression pattern of TopII transcript increases approximately three-fold during S-phase and eight-fold during the G2/M phase (B. N. Singh et al, unpublished data).…”
Section: A Cell Cycle Stage-specific Regulationsupporting
confidence: 92%
“…In carrot, steady-state levels of top1 a and b mRNAs, encoding the a and b isoforms of DNA topoisomerase 1, strongly increased in proliferating cells (Balestrazzi et al 2000), and the top1 b gene promoter was up-regulated when cells, arrested in G1, were induced to re-enter the cell cycle (Balestrazzi et al 2003). In tobacco, a single top1 gene, apparently of the b-type, has been isolated (Mudgil et al 2002).…”
Section: Mj Induces Mitotic Activity In the Inductive Phase Of Organomentioning
confidence: 99%