R gene

Figure 39-18. Schematic representation of the amplification of chorion protein genes s36 and s38. (Reproduced, with permission, from Chisholm R Gene amplification during development. Trends Biochem Sci 1982,7 161.)...

After decades of intense research several plant resistance genes (R) which participate in the gene-for-gene hypothesis have been cloned. In these cases resistance is only expressed when a plant that contains a specific R gene... 

R Genes Cis Elements, Trans-factors and Signal Transduction Systems in the Lens, Joram Piatigorksy and Peggy S. Zelen-ka, National Eye Institute, National Institutes of Health, Maryland. Subject Index. 

GOYETTE, P., PAI, A., MILOS, R., FROSST, P., TRAN, P., CHEN, Z., CHAN, M.,.ROZEN, R., Gene structure of human and mouse methylenetetrahydrofolate reductase (MTHFR), Mamm. Genome, 1998,9,652-656. 

Friedmann T, Roblin R. Gene therapy for human genetic disease. Science 1972 175(25) 949-955. 

Trophoblastin has therefore been named interferon-tau (IFN-r), and is classified as a type I IFN. There are at least three or four functional IFN-r genes in sheep and cattle. The molecule displays a molecular mass of 19kDa and an isoelectric point of 5.5-5.7, in common with other type 1 interferons. Interestingly, the molecule can also promote inhibition of reverse transcriptase activity in cells infected with the HIV virus. 

Ludwig, S.R. et al., Lc, a member of the maize R gene family responsible for tissue-specific anthocyanin production, encodes a protein similar to transcriptional activators and contains the myc-homology region. Proc. Natl Acad. Set USA, 86, 7092, 1989. 

Bacteriophage genes lac Isopropyl-p-D- S gene product S and R gene... 

Ludwig SR, Wessler SR. 1990. Maize R gene family Tissue-specific helix-loop-helix proteins. Cell 62 849-851. 

Moch, H., Sauter, G., Gasser, T., Bubendorf, L., Presti, J., Mihatsch, M. J., and Waldman, F. M. 1998. EGF-r gene copy number gains detected by fluorescence in situ hybridization in renal cell carcinoma.. /. Pathol. 7 544—548. 

Tittiger C., Blomquist G. J., Ivarsson P., Borgeson C. E. and Seybold S. J. (1999) Juvenile hormone regulation of HMG-R gene expression in the bark beetle, Ips paraconfusus (Coleoptera Scolytidae) implications for male aggregation pheromone biosynthesis. Cell. Mol. Life Sci. 55, 121-127. 

In most insects, pheromones are synthesized in specialized cells or tissues associated with the epidermis (Tillman et al., 1999). Biochemical analyses traced the localization of Scolytid pheromone accumulation to portions of the alimentary canal, particularly the hindgut (e.g. Borden et al., 1969 Byers, 1983), but the actual tissue source of pheromone components was unknown. Fortunately, the tight correlation of HMG-R gene expression with pheromone component biosynthesis meant that hybridization techniques could be used to map the location of pheromone biosynthesis. Northern blots provided the first maps, while in situ hybridizations definitively showed which tissues were elevating HMG-R mRNA in response to feeding or JH III treatment. As with endocrine regulation studies, the molecular and biochemical data complemented each other. 

III. Changes in Synaptic GABAa-R Gene Expression During Pregnancy and After Delivery... 

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