There are multiple definitions:

1. ferroportin 1(English)

   • the product of the SLC40A1 gene, and a main iron export protein in mammals. Also denoted as MTP1/IREG1
   • MTP1, IREG1, SLC40A1
   • Cardiology, Neurology
   • https://doi.org…55/2021/6864723

2. fixed prosthesis 1(English)

   • CISFP, FDP
   • Dentistry, Prosthetics
   • https://doi.org…1111/jopr.13905

3. fractional polynomial degree one(English)

   • FP2, PTH, RCS, AIC
   • Thyroid and parathyroid, Endocrinology, Pregnancy
   • https://doi.org…17/jns.2022.110
   • https://doi.org…epi.2014.11.022

4. [green] fluorescent protein 1(English)

   • facilitates efficient generation of endogenous-tagged cell lines
   • Fluorescence, Cell biology
   • https://doi.org…al.pone.0242592

5. fusion protein 1(English)

   • consisting of Mycobacterium tuberculosis (Mtb) antigens Ag85B, ACR, and HBHA, with the resultant vaccine, coined Spore-FP1
   • Ag85B, CD4, HBHA, ACR, BCG, MTB, TB
   • Immunology, Microbiology
   • https://doi.org…immu.2018.00346