P50


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P50

the partial pressure of oxygen at which hemoglobin is half saturated with bound oxygen.

NFKB1

A gene on chromosome 4q24 that encodes a kappa light polypeptide of NF-kappaB (nuclear factor-kappaB), a rapidly acting primary transcription factor which is found in all cell types and involved in cellular responses to stimuli, including cytokines and stress. NF-kappaB plays a key role in regulating the immune response to infection; it is involved in various biological processes including inflammation, immunity, differentiation, cell growth, tumourigenesis and apoptosis.

P50

The O2 tension at which Hb is12 (50%) saturated, a value equal to 26 torr–mm Hg in normal RBCs; the P50 value is obtained from the midpoint of the O2 dissociation curve–O2DC, and does not reflect the shape of the curve; with ↑ O2 affinity, P50 ↓, resulting in a 'left shift' of O2; ↑ P50 indicates ↓ O2 affinity for Hb. See Oxygen dissociation curve.
References in periodicals archive ?
started charging an additional P50 to its new subscribers as of July 8, 2017 who refused to go paperless.
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