PubMed Health⌕ Search

Biomedical subjects

A Robins

Publications and source records attributed to A Robins.

39 records · Page 3Linked to original sources

The merrit alloantigenic system of human B lymphocytes: evidence for thirteen possible factors including one six-member segregant series.

An analysis of the typing results of a 70-member chronic lymphatic leukemia B cell panel revealed evidence for 13 possible groups of the Merrit alloantigenic system. Six of these appeared possibly allelic and may represent a segregant series. The CLL panel was also fully typed for HLA and some degree of linkage dysequilibrium between Merrit and HLA seemed apparent from the data. Merrit antibodies can be absorbed out with selected surface membrane immunoglobulin (SMIG)-positive normal lymphocytes and less so or not at all with E rosette-forming T cells or Fc-positive SMIG-negative lymphocytes.

Absorption↗

Control of transgenesis in higher cells: the procell transposon Tn10 TetR mRNA has several major hairpins and can be unstable in eucells.

The TetR regulatory gene from the transposon Tn10 has some excellent characteristics for transgenic control in higher cells. However, we experienced severe problems with mRNA instability for this gene in eucells (CHO cells). This may be connected with the existence within the Tn10 TetR mRNA of several sizeable hairpins. They resemble canonical RNase E sites for mRNA destabilisation in procells and possibly also in eucells. Two of the hairpins also included sequences resembling eucell hnRNA polyadenylation or processing signals. The TetR counterpart from the plasmid RA1 appears to have less of the hairpin secondary structure; perhaps because of this, it did not present these mRNA instability problems in CHO cells, and it may prove a valuable alternative for transgene control in gene therapy and biotechnology.

Animals↗