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3 hits to papers found.

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# Term Name Article Title and Abstract Hit details Hit Valid?
1. gene AT3G50210.1 ( pub:10168)
Alias: F11C1.50
TAIR:gene:2074799 (Accession)
Article [ 23893 ] (2001) [research_article] Dark-inducible genes from Arabidopsis thaliana are associated with leaf senescence and repressed by sugars.   (PDF)
PHYSIOLOGIA PLANTARUM
Fujiki,Yuki,Yoshikawa,Yoko,Sato,Tokuyuki,Inada,Noriko,Ito,Masaki,Nishida,Ikuo,Watanabe,Akira
(TAIR Reference:501683242)

We have isolated 5 cDNA clones (din2, din6, din9, din10 and din11) corresponding to genes, the transcripts of which accumulated in leaves of Arabidopsis thaliana kept in the dark. These cDNA clones encode proteins similar to beta-glucosidase (EC 3.2.1.21, din2), asparagine synthetase (EC 6.3.5.4, din6), phosphomannose isomerase (EC 5.3.1.8, din9), seed imbibition protein (din10) and 2-oxoacid-dependent dioxygenases (din11). Accumulation of the transcripts from din6 and din10 occurred within 3 h after plants were transferred to darkness. The transcripts from din2, din9 and din11 were only detected after 24 h of dark treatment. We also observed the accumulation of the din transcripts in senescing leaves. Application of a photosynthesis inhibitor, 3-(3,4-dichlorophenyl)-1-1-dimethyl-urea, induced the expression of the din genes under illumination. Application of sucrose to detached leaves suppressed the accumulation of the din transcripts in the dark. These results indicate that expression of these genes partly depends on cellular sugar level. The sugar-modulated expression of the din genes suggests that dark-induced expression of these genes might be related to sugar starvation occurring in leaf cells in the dark, when the photosynthesis is hindered.
Scanned By: UniProt

Other associated terms: beta-glucosidase activity / glucosidase activity / isomerase activity / response to light stimulus / photosynthesis / AT3G50210.1 / AT3G60140.1 / AT3G49630.1 / response to sucrose / darkness / sucrose / leaf senescence / Arabidopsis thaliana / Arabidopsis / seed / vascular leaf / vascular leaf senescent stage / seed imbibition stage / sporophyte senescent stage / AT1G67070 (DIN9) / AT3G50210 / AT3G47340 (ASN1) / AT3G60140 (DIN2) / AT3G49620 (DIN11) / AT3G49630 / AT5G20250 (DIN10) / Arabidopsis thaliana / leaf /
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(iris / 2003-11-18): Article used for annotation,added as hit (edit)
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2. gene AT3G50210.1 ( pub:10168)
Alias: F11C1.50
TAIR:gene:2074799 (Accession)
Article [ 5880 ] (2000) [research_article] Multiple signaling pathways in gene expression during sugar starvation. Pharmacological analysis of din gene expression in suspension-cultured cells of arabidopsis.   (PDF)
PLANT PHYSIOLOGY
Fujiki, Y.,Ito, M.,Nishida, I.,Watanabe, A.
(TAIR Reference:5882)

We have identified many dark-inducible (din) genes that are expressed in Arabidopsis leaves kept in the dark. In the present study we addressed the question of how plant cells sense the depletion of sugars, and how sugar starvation triggers din gene expression in suspension-cultured cells of Arabidopsis. Depletion of sucrose in the medium triggered marked accumulation of din transcripts. Suppression of din gene expression by 2-deoxy-Glc, and a non-suppressive effect exerted by 3-O-methyl-Glc, suggested that sugar-repressible expression of din genes is mediated through the phosphorylation of hexose by hexokinase, as exemplified in the repression of photosynthetic genes by sugars. We have further shown that the signaling triggered by sugar starvation involves protein phosphorylation and dephosphorylation events, and have provided the first evidence that multiple pathways of protein dephosphorylation exist in sugar starvation-induced gene expression. An inhibitor of serine/threonine protein kinase, K-252a, inhibited din gene expression in sugar-depleted cells. Okadaic acid, which may preferentially inhibit type 2A protein phosphatases over type 1, enhanced the transcript levels of all din genes, except din6 and din10, under sugar starvation. Conversely, a more potent inhibitor of type 1 and 2A protein phosphatases, calyculin A, increased transcripts from din2 and din9, but decreased those from other din genes, in sugar-depleted cells. On the other hand, calyculin A, but not okadaic acid, completely inhibited the gene expression of chlorophyll a/b-binding protein under sugar starvation. These results indicate that multiple signaling pathways, mediated by different types of protein phosphatases, regulate gene expression during sugar starvation.
Scanned By: UniProt

Other associated terms: hexokinase activity / kinase activity / binding / protein kinase activity / amino acid catabolic process / dephosphorylation / response to light stimulus / phosphorylation / protein dephosphorylation / protein phosphorylation / cellular response to starvation / AT3G50210.1 / AT3G49620.1 / AT3G49630.1 / response to sucrose / sucrose / Arabidopsis / cultured cells / sporophyte senescent stage / gene expression / AT1G67070 (DIN9) / AT3G50210 / AT3G06850 (BCE2) / AT3G13450 (DIN4) / AT3G47340 (ASN1) / AT3G60140 (DIN2) / AT3G49620 (DIN11) / AT3G49630 / AT4G35770 (SEN1) / AT5G20250 (DIN10) / signaling /
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(iris / 2003-11-18): Article used for annotation,added as hit (edit)
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3. gene AT3G50210.1 ( pub:10168)
Alias: F11C1.50
TAIR:gene:2074799 (Accession)
Article [ 45502 ] (2008) [abstract] Cytochrome P450s as reporters for circadian-regulated pathways  
19th International Conference on Arabidopsis Research
*Yinghong Pan, Matthew E. Hudson, Todd P. Michael, and Mary A. Schuler
(TAIR Reference:501727711)

Cytochrome P450 monooxygenases play important roles in the synthesis of diverse secondary compounds in Arabidopsis thaliana. Comparison of four datasets analyzing seedlings harvested over a two-day period of constant conditions after growth with varying photoperiods and thermocycles recorded a total of 98 P450 loci as circadian-regulated for at least one of the four conditions. Here, we further describe the circadian-regulated pathways using, as reporters, individual P450 loci that are likely to be rate-limiting in secondary metabolic pathways. RT-PCR gel blot analyses have confirmed circadian regulation of P450s in phenylpropanoid, carotenoid, oxylipin, glucosinolate and brassinosteroid biosyntheses and shown that P450 and non-P450 genes in the many branches of the phenylpropanoid pathway have similar circadian patterns of expression. In silico analyses of the subsets of co-regulated promoters have identified over-represented promoter elements in various biosynthetic pathway genes including MYB and MYB4 elements that are significantly more abundant in promoters for the core and lignin branch of phenylpropanoid metabolism. Interactions with these elements important for circadian regulation do not involve the MYB transcription factor PAP1 as previously proposed since the expression patterns of circadian-regulated P450s are the same in pap1-D mutant seedlings as in wildtype seedlings. Further analysis of circadian-regulated promoters in other biochemical pathways will provide us with the opportunity to functionally characterize novel promoter motifs that might be important in P450 circadian regulation.
Not Scanned

Other associated terms: open tracheal system development / AT1G55020.1 / AT1G19640.1 / AT1G65060.1 / AT1G51680.1 / AT1G08550.1 / AT1G74100.1 / AT1G74090.1 / AT1G24100.1 / AT1G16400.1 / AT1G16410.1 / AT1G20490.1 / AT1G31800.1 / AT1G01390.1 / AT1G01420.1 / AT2G36800.1 / AT2G26710.1 / AT2G18560.1 / AT2G33590.1 / AT2G06050.1 / AT2G02400.1 / AT2G37040.1 / AT2G40890.1 / AT2G23910.1 / AT2G30490.1 / AT3G50210.1 / AT3G10230.1 / AT3G51240.1 / AT3G19000.1 / AT3G19010.1 / AT3G25760.1 / AT3G25770.1 / AT3G19450.1 / AT3G19820.1 / AT3G21240.1 / AT3G21230.1 / AT3G45140.1 / AT3G55120.1 / AT3G30180.1 / AT3G55360.1 / AT3G50660.1 / AT3G53260.1 / AT3G53130.1 / AT3G04870.1 / AT4G36380.1 / AT4G30470.1 / AT4G13770.1 / AT4G36220.1 / AT4G34050.1 / AT4G01070.1 / ... (75 other terms not shown)
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Updated by ICAR Abstract Registration on 2008-09-11
 
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