Purification of tobacco nuclear proteins binding to a CACGTG motif of the chalcone synthase promoter by DNA affinity chromatography

Staiger D, Becker F, Schell J, Koncz C, Palme K (1991)
European Journal of Biochemistry 199(3): 519-527.

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Abstract
The activity of various light-regulated and developmentally regulated plant gene promoters critically depends upon the presence of a conserved sequence with a central CACGTG motif. Using band-shift assays, we have identified nuclear factor(s) from Nicotiana tabacum, termed CG-1, that specifically recognize(s) this transcriptional element in the ultraviolet-light-regulated Antirrhinum majus chalcone synthase promoter. CG-1 activity is constitutively expressed in tobacco seedlings grown in the absence of ultraviolet light as well as in seedlings induced for chalcone synthase gene expression by ultraviolet light irradiation. CG-1 activity has also been detected in flower tissue. DNA-protein cross-linking studies identified three polypeptides with apparent molecular masses of 20, 32 and 42 kDa binding to the CACGTG motif. Proteins interacting with the CACGTG motif were purified from N. tabacum seedlings using differential sequence-specific DNA affinity chromatography employing wild-type and mutated CG-1-binding sites. Denaturing polyacrylamide gel electrophoresis revealed major polypeptides of approximately 20, 30 and 40 kDa which are highly enriched in the affinity-purified fractions binding specifically to the CACGTG motif.
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Staiger D, Becker F, Schell J, Koncz C, Palme K. Purification of tobacco nuclear proteins binding to a CACGTG motif of the chalcone synthase promoter by DNA affinity chromatography. European Journal of Biochemistry. 1991;199(3):519-527.
Staiger, D., Becker, F., Schell, J., Koncz, C., & Palme, K. (1991). Purification of tobacco nuclear proteins binding to a CACGTG motif of the chalcone synthase promoter by DNA affinity chromatography. European Journal of Biochemistry, 199(3), 519-527.
Staiger, D., Becker, F., Schell, J., Koncz, C., and Palme, K. (1991). Purification of tobacco nuclear proteins binding to a CACGTG motif of the chalcone synthase promoter by DNA affinity chromatography. European Journal of Biochemistry 199, 519-527.
Staiger, D., et al., 1991. Purification of tobacco nuclear proteins binding to a CACGTG motif of the chalcone synthase promoter by DNA affinity chromatography. European Journal of Biochemistry, 199(3), p 519-527.
D. Staiger, et al., “Purification of tobacco nuclear proteins binding to a CACGTG motif of the chalcone synthase promoter by DNA affinity chromatography”, European Journal of Biochemistry, vol. 199, 1991, pp. 519-527.
Staiger, D., Becker, F., Schell, J., Koncz, C., Palme, K.: Purification of tobacco nuclear proteins binding to a CACGTG motif of the chalcone synthase promoter by DNA affinity chromatography. European Journal of Biochemistry. 199, 519-527 (1991).
Staiger, Dorothee, Becker, Frank, Schell, Jeff, Koncz, Csaba, and Palme, Klaus. “Purification of tobacco nuclear proteins binding to a CACGTG motif of the chalcone synthase promoter by DNA affinity chromatography”. European Journal of Biochemistry 199.3 (1991): 519-527.
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