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The human and bovine 14-3-3 eta protein mRNAs are highly conserved in both their translated and untranslated regions.

Swanson K.D., Dhar M.S., Joshi J.G.

14-3-3 proteins form a highly conserved protein family whose members have been shown to activate tyrosine and tryptophan hydroxylases, inhibit protein kinase C and possess phospholipase A2 activity in vitro. We have isolated and analyzed a 14-3-3 protein cDNA clone (H14-3-3) from a human fetal brain cDNA library and found it to possess a high level of sequence identity with the bovine 14-3-3 eta protein cDNA in both the translated and untranslated regions, suggesting the presence of cis-regulatory elements in the untranslated regions of these mRNAs. The proteins encoded by these two cDNAs are 98.4% identical. Two different sized RNA species, approx. 1.9 and 3.5 kb in size that are expressed in a variety of tissues hybridize with this cDNA. However, only the 1.9 kb RNA is detected in the fetal brain. Northern blot analysis of poly(A)+ RNA isolated from eight different human tissues shows that 14-3-3 protein mRNAs are expressed in many tissues in the body. In agreement with previous reports, the highest abundance of RNA hybridizing with this cDNA is seen in the brain.

Biochim. Biophys. Acta 1216:145-148(1993) [PubMed] [Europe PMC]

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