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Systematic name YPL203W
Gene name TPK2
Aliases PKA2, PKA3, YKR1
Feature type ORF, Verified
Coordinates Chr XVI:166256..167398
Primary SGDID S000006124

Description of YPL203W: cAMP-dependent protein kinase catalytic subunit; promotes vegetative growth in response to nutrients via the Ras-cAMP signaling pathway; partially redundant with Tpk1p and Tpk3p; localizes to P-bodies during stationary phase[1][2][3][4]


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Strain Background: S288C, W303 (see detailed notes from Rodney Rothstein and Stephan Bartsch for the W303 strain used in the study), industrial
Genetic interaction with ATF1
Mutation type(s): deletion/partial inactivating

ATF1 is transcriptionally induced by glucose and sucrose. This regulation depends on Ras/cAMP/PKA signaling. Long-term expression of ATF1 requires both a fermentable carbon source and a nitrogen source. This regulation depends on FGM signaling. [5] [6]



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  1. Ordiz I, et al. (1996) Glucose-induced inactivation of isocitrate lyase in Saccharomyces cerevisiae is mediated by the cAMP-dependent protein kinase catalytic subunits Tpk1 and Tpk2. FEBS Lett 385(1-2):43-6 SGD PMID 8641464
  2. Toda T, et al. (1987) Cloning and characterization of BCY1, a locus encoding a regulatory subunit of the cyclic AMP-dependent protein kinase in Saccharomyces cerevisiae. Mol Cell Biol 7(4):1371-7 SGD PMID 3037314
  3. Toda T, et al. (1987) Three different genes in S. cerevisiae encode the catalytic subunits of the cAMP-dependent protein kinase. Cell 50(2):277-87 SGD PMID 3036373
  4. Tudisca V, et al. (2010) Differential localization to cytoplasm, nucleus or P-bodies of yeast PKA subunits under different growth conditions. Eur J Cell Biol 89(4):339-348 SGD PMID 19804918
  5. Verstrepen KJ, et al. (2003) The Saccharomyces cerevisiae alcohol acetyl transferase gene ATF1 is a target of the cAMP/PKA and FGM nutrient-signalling pathways. FEMS Yeast Res 4(3):285-96 SGD PMID 14654433
  6. submitted by Kevin J Verstrepen on 2004-03-11

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