Give an account of microbial polyphosphate?
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Answer / vinee
PolyP consists of a linear chain of P residues linked
together by high energy phosphoanhydride bonds and is one
of the most widely distributed natural biopolymers, having
been detected in all organisms.
It is particularly significant within microorganisms where
it may amount to as much as 10-20% of the cellular dry
weight.
It's roles include that of a reservoir of energy and
phosphate, a chelator of metals, a capsule material and
a 'channelling' agent in the phenomenon of bacterial
transformation. It has also been hypothesised to play an
important role in the response of microbial cells to
nutritional and environmental stresses.
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