enkephalin

noun 0.836

met-enkephalin

noun 0.801

prodynorphin

noun 0.740

endorphin

noun 0.648

neurokinin

noun 0.576

neuropeptide

noun 0.573

endophilin

noun 0.569

endoproteinase

noun 0.563

proctolin

noun 0.562

endothelin

noun 0.561

endopeptidase

noun 0.552

prostanoid

noun 0.545

diprenorphine

noun 0.544

proline

noun 0.543

phenylethanolamine

noun 0.542

nephrin

noun 0.542

pregnenolone

noun 0.538

neurophysin

noun 0.529

phenylethylamine

noun 0.525

kynurenine

noun 0.524

encephalon

noun 0.524

prohormone

noun 0.523

orexin

noun 0.520

neuromedin

noun 0.519

enteropeptidase

noun 0.518

norepinephrine

noun 0.518

phenylpropanolamine

noun 0.517

prion protein

noun 0.516

prostaglandin

noun 0.513

phosphatidylethanolamine

noun 0.512

prothrombin

noun 0.511

prolactin

noun 0.509

hydroxypregnenolone

noun 0.508

endoprotease

noun 0.505

enamine

noun 0.503

polyproline

noun 0.503

protooncogene

noun 0.502

exopeptidase

noun 0.501

phenethylamine

noun 0.501

epoetin

noun 0.501

cephalin

noun 0.501

erythropoietin

noun 0.500