-
strand may be "positively
supercoiled" or "negatively
supercoiled" (more or less
tightly wound). The
amount of a strand's
supercoiling affects a
number of biological...
-
become over-twisted (positively
supercoiled) and the DNA
behind RNAP
would become under-twisted (negatively
supercoiled). It has been
found that a topological...
- to, respectively, as
positively or
negatively supercoiled. DNA in vivo is
typically negatively supercoiled,
which facilitates the
unwinding (melting) of...
-
changes in the
topological state of DNA,
interconverting relaxed and
supercoiled forms,
linked (catenated) and
unlinked species, and
knotted and unknotted...
-
Schmid MF, Chiu W,
Zechiedrich L (October 2015). "Structural
diversity of
supercoiled DNA".
Nature Communications. 6 (1): 8440. Bibcode:2015NatCo...6.8440I...
-
positive supercoils can be
introduced to DNA that is
either negatively supercoiled or
fully relaxed.
Where DNA
gyrase forms a
tetramer and is
capable of...
- than
supercoiled DNA, and the single-stranded form (which can
sometimes appear depending on the
preparation methods) may move
ahead of the
supercoiled DNA...
- unwound, RNA
synthesis takes place within the
transcription bubble region.
Supercoiling is also part of this
process since DNA
regions in
front of the RNA polymerase...
- is a three-dimensional
matrix formed of
helical agarose molecules in
supercoiled bundles that are
aggregated into three-dimensional
structures with channels...
-
Three topoisomers of a
closed circular DNA molecule. Left:
negatively supercoiled; center: relaxed; right:
positively supercoiled...
