Molecular biology glossaries and terms

P

Biology; Biochemistry

In addition to use as the metric notation of pico (10 -9 ), it is commonly used to indicate the logarithm of a reciprocal, e.g. pK a =log(1/K a ). When seen as a prefix followed by a number, p ...

A variant of C 3 photosynthesis in which CO 2 is first concentrated at the site of photosynthesis by carboxylation of phosphoenolpyruvate to oxaloacetate, which is then transported as such or as an ...

C4 photosynthesis

Biology; Biochemistry

A variant of C 3 photosynthesis in which CO 2 is first concentrated at the site of photosynthesis by carboxylation of phosphoenolpyruvate to oxaloacetate, which is then transported as such or as an ...

C4 cycle

Biology; Biochemistry

A variant of C 3 photosynthesis in which CO 2 is first concentrated at the site of photosynthesis by carboxylation of phosphoenolpyruvate to oxaloacetate, which is then transported as such or as an ...

Alpha/beta (α/β)-barrel

Biology; Biochemistry

A structure common to a large group of proteins, all of which are enzymes, defined by their similar structural motif. A ring of eight parallel β-strands makes up the core; the end of each β-strand is ...

Genomic library

Biology; Biochemistry

A collection of transformed cells, each of which contains DNA fragments; the entire population represents the total genome of an organism, e.g. a rat library containing DNA fragments which together ...

Molecular matchmaker

Biology; Biochemistry

A protein that effects complex-formation between another protein and DNA by catalysis of an energy-dependent conformational change in at least one of the pair; it thereby increases affinity and ...

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