What's the difference between balistraria and cruciform?
Balistraria
Definition:
(n.) A narrow opening, often cruciform, through which arrows might be discharged.
Example Sentences:
Cruciform
Definition:
(a.) Cross-shaped; (Bot.) having four parts arranged in the form of a cross.
Example Sentences:
(1) Synchronized cells (doubly arrested by serum starvation and aphidicolin) displayed a biphasic distribution of the number of cruciforms over the first 6 h after release from synchrony with maxima at 0 and 4 h after release.
(2) The results indicate that the optimal cruciform loop size is four bases, with loose 'breathing' at the first base pair at the top of the cruciform stem at 37 degrees C, and little or no opening of base pairs at the four-way junction.
(3) These sequences adopt cruciform geometry when the DNA helix is torsionally strained by negative supercoiling.
(4) Analysis of the products of the cruciform cleavage reaction by electrophoresis on polyacrylamide gels under denaturing conditions revealed that the cruciform structure was cleaved at either of two sites present in the stem of the cruciform and was not cleaved at the end of the stem.
(5) To determine whether the me3-psoralen might itself be disrupting cruciform structures, cruciforms were first produced in isolated Tetrahymena rDNA by heat treatment and then crosslinked in vitro.
(6) The other inconstant supports of the digital sheaths are systematically recorded indeed (C1 to C3), but only in exceptional cases they exist of cruciform fibers (Lig.
(7) We conclude that transcriptionally driven negative supercoiling provokes cruciform formation in vivo.
(8) These and other data implicate a linear rather than a cruciform conformation of the oriS palindrome in the initiation of HSV replication.
(9) Nonenzymatic glycosylation resulted in formation of cross-links and alterations of the cruciform shape of laminin molecules; these alterations were dramatic when high concentrations of glucose were used.
(10) A cruciform structure occurring at the pT181 replication origin in vitro is greatly enhanced by the binding of the plasmid-encoded initiator protein RepC.
(11) The C. fasciculata bent helix is neither cleaved by S1 nuclease nor modified by bromoacetaldehyde under conditions in which other unusual DNA structures (such as cruciforms or B-Z junctions) are susceptible to attack by these reagents.
(12) A plasmid encoding the gene for a temperature-sensitive Eco RI methylase (MEco RI) was cotransformed with different plasmids containing inserts that had varying capacities to form left-handed helices or cruciforms with a target Eco RI site in the center or at the ends of the inserts.
(13) We infer that RecBCD enzyme molecules must enter the termini of duplex DNA and approach the cruciform from more than one direction in order to cleave it into recombinant products.
(14) The cruciform cleavage enzyme was able to cleave the Holliday junction present in bacteriophage G4 figure-8 molecules.
(15) The B-Z junction is preferentially protected as compared to the cruciform, which in turn is more protected than other minor S1-sensitive structures present in pPst-0.9.
(16) We found that in both cases, induction of transcription by IPTG leads to the transition of the d(A-T)16 stretch into a cruciform state.
(17) High resolution mapping experiments reveal that Rh(DIP)3(3+) cleaves at a specific AT-rich site neighboring the stem of the minor cruciform on pBR322.
(18) Transcription itself has been shown to induce supercoiling, but the requisite negative supercoiling for cruciform extrusion by (AT)n in oocytes was not generated in this way since the characteristic P1 cutting pattern was retained even when RNA polymerase elongation was blocked with alpha-amanitin.
(19) The repeat units of the three minor variants are defined by identical 14-bp G + C-rich inverted repeats that might form cruciforms.
(20) Open regions and cruciform structures are also allowed for in the model.