Furthermore , even the finding of Celis  that argK is a target for transcriptional activation by ArgP may need to be reexamined , given that ( i ) there is a discrepancy between the expected argK runoff transcript size  determined from the promoter mapping data published by Celis et al. in an earlier paper  and that reported by him  for ArgP activation experiments  and ( ii ) the promoter ( for argK ) mapped by his group  is within the argK coding region per the genome sequence published by Blattner et al.  ( GenBank accession number AE000375 , wherein argK is annotated ygfD ) .