The phrase "a boxes" is not correct in written English.
It is incorrect because "boxes" is a plural noun, and it should not be preceded by the singular article "a."
Example: "I need a box for my books."
Alternatives: "one box" or "a single box."
This appears to be a trade-off Facebook is imposing on developers: isolate their profile boxes in a "boxes" tab but compensate them by allowing for more prominent, full-view pages.
I check my email every 10 minutes anyway—I don't need to have a boxes constantly popping up on my lock screen while I'm at the gym or walking down the street.
The KRAB domain of ZNF263, however, has substitutions in amino acids corresponding to critical residues in the KRAB domain consensus sequence, including the MLE sequence that occurs in the context of the highly conserved VMLENY motif common to many KRAB A boxes and critical for repression.
Although sequences shorter than 200 bp no longer had intact A boxes, they basically retained the B box necessary for transcription, as shown in Additional file 3.
All three species have a conserved SPS+A module (with two A boxes on either side of the Su(H) pair) in E spl m8.
In order to identify conserved regulatory domains, we searched all non-coding DNA within the E spl -C complE spl -CT. dalmanni and G. morsitans for Su(H) binding sites (YGTGRGAA) and proneural A boxes (Rcomplexes 24].
This tool, Orifinder [ 28], locates predicted bacterial replication origins within each DNA sequence by taking into account base composition asymmetry, distribution of DNA-A boxes and the presence of genes frequently located close to the bacterial replication start (Additional file 1: Table S1).
By boat, truck and air – and sometimes by hand -- UNICEF is shipping enough school-in-a-boxes for 560,000 children.
This tool revealed a putative Type-III replication origin on Chr, around base 1, where there is a region of base composition asymmetry containing three DNA-A-boxes, close to the hemE gene (as in the N. aromaticivorans DSM 12444 genome) and to a DNA-A gene.
