In other studies, we have found that the NS5A change was consistently selected for in all viruses rescued in vivo from the wild-type GBV-B molecular clone used here [3], [5], therefore we hypothesized that this mutation was not directly compensating for a sequence incompatibility within the chimeric genome.
Using the same plant-centred perspective we find it intriguing that the S. dasyclados clone used here is also highly attractive to A. nemorum when herbivore damaged.
Because the same effect was seen in several different independently derived cell clones including those expressing more or less Bcl2-acta than the clone used here (data not shown) we presume that Bcl2-acta is more susceptible to a protease that is activated by low doses of doxorubicin.
Although two 3AS-specific BAC libraries are currently available http://olomouc.ueb.cas.cz, only the TaaCsp3AShA library comprising 55,296 clones was used here [ 20].
The fly fosmid clone pFlyfoscrb (no.P52GD2) used here (called foscrb) contains the complete transcribed region of the crb locus plus ∼7 kb upstream and ∼5 kb downstream genomic sequence, thus spanning a similar genomic region to that contained in cosmid Pw-1.
We cannot at this stage rule out the possibility that nonhomologous end joining is also aberrant, as is the case in human cells lacking functional WRN (Chen et al., 2003; Otsuki et al., 2007), since such end joining is unlikely to yield scoreable clones in the assays used here.
All clones were analyzed by direct amplicon TRFLP to unambiguously assign putative environmental clone taxonomic information directly to peaks in the experimental TRFLP dataset; additional specifics of the TRFLP, cloning, and statistical assignment methods used here may be found in Nelson [28].
Human CCND1, encoding cyclin D1, from the 4.2 kb full-length cDNA clone MGC 23386 [Genbank: BC023620] (American Type Culture Collection), used here as an example, was isolated from vector sequences with EcoRI and XhoI (yielding 2.7 and 1.5 kb fragments, due to an internal EcoRI site) and end-blunted with Klenow fragment.
The method used here for the cloning and sequencing of variable regions for antibody heavy and light chains is based upon the method described fully in Current Protocols in Immunology [26].
The term 'negative selection' is used here to describe cloning systems with vectors that contain the ccdB cell-death gene which is replaced by the cloned insert, i.e. the selection eliminates the vector molecules without insert.
