Procalcitonin
Procalcitonin (PCT, calcitonin precursor fragment)
116-aa prohormone fragment (full sequence not listed) Amino Acids · MW: 13.4 kDa
Amino Acids
116-aa prohormone fragment (full sequence not listed)
Molecular Weight
13.4 kDa
Half-life
20-24 h
Research Score
4.8
Studies
95
Storage
Store lyophilized at -20°C, reconstituted at 2-8°C
What is Procalcitonin?
A 116-aa prohormone fragment that rises during systemic bacterial infection and sepsis. It is widely measured in serum or plasma to help distinguish bacterial from non-bacterial inflammation and to support antibiotic stewardship.
Key Benefits & Mechanisms
sepsis detection
bacterial infection stratification
antibiotic guidance
Research Summary
Well established in emergency and critical-care testing; serum PCT improves specificity for bacterial infection when interpreted with clinical findings and other biomarkers.
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