polyaminases
plural of polyaminase

polyantibodies
plural of polyantibody

polyantibody
An antibody that binds to many different antigens

polycysteine
a homopolymer of the amino acid cysteine

polycysteines
plural of polycysteine

polycytosine
A nucleotide containing cytosine as the only base

polycytosines
plural of polycytosine

polyesterase
Any enzyme that catalyses the hydrolysis of polyesters

polyesterases
plural of polyesterase

polygalacturonase
Any enzyme that catalyses the hydrolysis of polymeric galacturonic acids and similar carbohydrates.

polygalacturonases
plural of polygalacturonase

polyglutamylase
Any enzyme that catalyzes polyglutamylation.

polyglutamylases
plural of polyglutamylase

polymerase
Any of various enzymes that catalyze the formation of polymers of DNA or RNA using an existing strand of RNA or DNA respectively as a template.

polymerases
plural of polymerase

polynucleotidase
Any of several enzymes which catalyze the hydrolysis of polynucleotides to form oligonucleotides and eventually simple nucleotides.

polynucleotidases
plural of polynucleotidase

polyornithine
The polypeptide whose constituent amino acid is ornithine

polypeptidase
Any enzyme which catalyzes the hydrolysis of a polypeptide

polypeptidases
plural of polypeptidase

polyphemusin
An antimicrobial peptide present in the horseshoe crab Limulus polyphemus

polyphosphatase
Any enzyme that hydrolyses polyphosphates

polyphosphatases
plural of polyphosphatase

polyribonucleotidyltransferase
A transferase that transfers polyribonucleotidyl groups.

polysaccharase
Any enzyme that degrades/hydrolyses a polysaccharide.

polysaccharases
plural of polysaccharase

polysaccharidase
Any enzyme that catalyses the hydrolysis of a polysaccharide

polysaccharidases
plural of polysaccharidase

polysialyltransferase
Any transferase that promotes polysialylation

polysialyltransferases
plural of polysialyltransferase

polytract
A nucleotide repeat

polytracts
plural of polytract

ponasterone
A particular steroid hormone in insects

ponasterones
plural of ponasterone

poneratoxin
A paralyzing neurotoxic peptide isolated from the venom of the bullet ant.

ponesterone
Misspelling of ponasterone.

poriferasterol
A particular sterol found in marine sponges.

poroxidase
Misspelling of peroxidase.

porphyranase
Any enzyme that catalyses the hydrolysis of a porphyran

porphyranases
plural of porphyranase

postbiotic
Any metabolite of a probiotic compound

postbiotics
plural of postbiotic

prajmaline
An antiarrhythmic drug, a semisynthetic propyl derivative of ajmaline.

pramiracetam
A nootropic drug derived from piracetam.

prealbumin
Transthyretin

precipitin
Any antibody that reacts with an antigen to form a precipitate.

precipitins
plural of precipitin

preechinulin
A metabolite of certain Aspergillus species.

pregnanetriolone
The corticosteroid hormone (3R,5R,8S,9S,10S,13S,14S,17R)-3,17-dihydroxy-17-[(1S)-1-hydroxyethyl]-10,13-dimethyl-2,3,4,5,6,7,8,9,12,14,15,16-dodecahydro-1H-cyclopenta[a]phenanthren-11-one

prehormone
A substance secreted by glandular tissue that has little or no significant biological activity, but is converted in peripheral tissues into an active hormone.

prehormones
plural of prehormone

preladenant
An experimental antiparkinsonian drug.

premembrane
A signal peptide responsible for dengue envelope translocation in cells

prenazone
The drug feprazone.

prenylamine
A calcium channel blocker drug.

prenylprotein
Any prenylated protein

prenylproteins
plural of prenylprotein

prenyltransferase
Any of a class of enzymes that transfer allylic prenyl groups to acceptor molecules.

prenyltransferases
plural of prenyltransferase

prepeptide
The part of an enzyme that is directed to a specific part of a cell before becoming a protein

prepeptides
plural of prepeptide

preprocollagen
The peptide that undergoes post-translational processing to form collagen.

preprosequence
A sequence of amino acid residues in a preprotein

preprosequences
plural of preprosequence

preprothyrotropin
A large precursor protein of thyrotropin-releasing hormone, derived by posttranscriptional processing and enzymatic modification.

presepsin
A particular chemiluminescent enzyme biomarker for bacterial sepsis.

pretyrosine
An amino acid intermediate of phenylalanine and/or tyrosine biosynthesis.

pridinol
A muscle relaxant drug.

pridopidine
An experimental drug candidate of the dopidine class.

prifuroline
An antiarrhythmic drug.

primase
An RNA polymerase involved in the initiation of DNA synthesis.

primases
plural of primase

primeverose
A disaccharide, consisting of xylose and glucose residues, that occurs as plant glycosides

prinaberel
A drug that acts as a highly selective agonist of the ERβ subtype of the estrogen receptor, used in scientific research.

prionoid
Any misfolded protein similar to a prion

prionoids
plural of prionoid

pristinin
A posttranslationally modified peptide present in Streptomyces pristinaespiralis

proadrenomedullin
A component of adrenomedullin that is used as a biomarker

proboscipedia
A homeotic protein (and associated gene) required for the formation of labial and maxillary palps in flies

probucol
A particular antihyperlipidemic drug

procalcitonin
A peptide precursor to the hormone calcitonin

procalcitonine
Alternative form of procalcitonin.

procarbazine
A particular drug used in chemotherapy.

procarbazines
plural of procarbazine

procollagenase
Any enzyme that activates collagen, allowing it to be broken down by collagenases

procollagenases
plural of procollagenase

prodynorphin
An opioid polypeptide hormone involved with chemical signal transduction and cell communication.

prodynorphins
plural of prodynorphin

profilin
An actin-binding protein involved in the dynamic turnover and restructuring of the actin cytoskeleton, found in all eukaryotic organisms in most cells.

profilins
plural of profilin

progestagen
Alternative spelling of progestogen.

progestagens
plural of progestagen

progestogen
The steroid hormone progesterone.
Any of a class of synthetic hormones which produce effects similar to progesterone (the only natural progestogen) and have antiestrogenic and antigonadotropic properties.

progestogens
plural of progestogen

proglumide
A cholecystokinin antagonist drug that inhibits gastrointestinal motility and reduces gastric secretions.

progranulin
A precursor protein to granulin.

progranulins
plural of progranulin

proguanil
A prophylactic antimalarial drug effective against sporozoites.

prolactin
A peptide gonadotrophic hormone secreted by the pituitary gland; it stimulates growth of the mammary glands and lactation in females.

prolactins
plural of prolactin

prolargin
A leucine-rich repeat protein present in connective tissue extracellular matrix. It functions as a molecule anchoring basement membranes to the underlying connective tissue.

prolinase
A particular enzyme that catalyses the hydrolysis of dipeptides.

prolinases
plural of prolinase

prolineamide
The amide of the amino acid proline

prolixicin
An antimicrobial peptide isolated from Rhodnius prolixus

promegapoietin
A drug given during chemotherapy to increase blood cell regeneration.

pronapin
A storage protein present in Brassica napus

proneurotensin
A precursor of the hormone neurotensin

propantheline
An antimuscarinic drug.

propepsin
pepsinogen

propepsins
plural of propepsin

prophalloin
A toxic cyclic peptide obtained from the mushroom Amanita phalloides

proprotein
Any protein that is cleaved by a convertase to form a smaller protein or biologically-active polypeptide.

proproteins
plural of proprotein

propylamphetamine
A psychostimulant drug and research chemical of the phenethylamine and amphetamine chemical classes.

prorenalase
A precursor protein that becomes renalase when activated