Example sentences for: tkt

How can you use “tkt” in a sentence? Here are some example sentences to help you improve your vocabulary:

  • Characterization of tkT lines

  • We have previously characterized clonal mouse astrocyte cell lines, immortalized by transduction of SV40 large T antigen expressed from the MoMuLV LTR [ 6 13 ] . Here, we compare variation in Tag levels in 3 of these lines and 3 additional lines (termed tkT lines), immortalized with Moloney Sarcoma Virus vectors expressing Tag from an internal herpes thymidine kinase (tk) promoter.

  • The remaining two essential gene products were in the pentosephosphate pathway ( tktAB, rpiAB ). The tktAB and rpiAB gene products were required for the synthesis of erythrose 4-phosphate in all phases (aromatic amino acid supplement required for the cultivation of tkt - E. coli mutant strains [ 27]).

  • Cortical astrocytes were harvested from neonatal C57BL/6 mice and infected with a replication-defective retrovirus encoding Tag and neomycin resistance as previously described [ 13 ] . The transferred viruses were SV40-6 [ 5 ] , in which wild type Tag is expressed from the M-MuLV LTR promoter; SV(X)T K1, which is constructed the same as SV40-6 except that the Tag is mutant [ 38 ] and defective for binding the retinoblastoma protein family [ 39 ] ; Linker-tkT, in which the cDNA for Tag is expressed from the herpes simplex 1 tk promoter [ 11 ] . The differentiation and transformation phenotypes of the cell lines utilizing the M-MuLV LTR promoter have been described [ 6 13 ] . The Linker-tkT lines (tkT) were either isolated as clones after G418 selection (as previously described) [ 6 ] or frozen immediately after selection (pooled clones) and clonally selected at a later time.

  • To test this, the cell line in which Tag control was most sensitive to density, P0-3D tkT#5, was grown for 3 days starting at an intermediate density of 10 6cells per 10 cm plate with varying concentrations of serum ranging from 2.5-10%.


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