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Mycoplasma genitalium, a sexually transmitted human pathogen, encodes MgpB and MgpC adhesins that undergo phase and antigenic variation through recombination with archived ‘MgPar’ donor sequences. The mechanism and molecular factors required for this genetic variation are poorly understood. In this study, we estimate that sequence variation at the mgpB/C locus occurs in vitro at a frequency of >...
Prostate cancer deaths are due to functional escape of prostate cancer cells from their original androgen-dependent growth. To better understand the origin and evolution of hormone-refractory prostate cancer, it is important to identify and characterize genes expressed in the androgen-deprived prostate. We have verified that the rudimentary prostate of congenital androgen deficient mice (hpg) is indeed...
Transgenic research often suffers from the lack of strong tissue specific promoters and the lack of suitable antibodies for transgene detection. We have now constructed a novel prostate specific 2-in-1 Tetracycline-off (Tet-off), bicistronic expression vector, designated PbTetOIE, for transgenic research. The vector allows potent induction as well as inducible suppression of transgene expression in...
A novel gene highly expressed in thyroid cancer, designated TC-1 (thyroid cancer-1), was cloned from suppression subtractive hybridization between papillary thyroid carcinoma and its surrounding normal thyroid tissue. Overexpression of TC-1 in thyroid cancer was confirmed in 15/16 paired samples by RT-PCR and Northern analysis. Ubiquitously expressed in human tissues, the TC-1 sequence showed no homology...
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