prosequence
A part of a protein that is present in this protein's inactive form but is removed during activation. It is usually required for protein folding or maintenance.

prosequences
plural of prosequence

prosome
Synonym of proteasome.

prosomes
plural of prosome

prostasin
A particular protein that is implicated in epithelial sodium channel regulation.

protachykinin
A peptide isolated from pheochromocytoma tissue.

protachykinins
plural of protachykinin

proteasome
A complex protein, found in bacterial, archeal and eukaryotic cells, that breaks down other proteins via proteolysis.

proteasomes
plural of proteasome

protectin
A membrane-bound protein that prevents lysis by complement

protectins
plural of protectin

proteinate
An anion derived from a protein.
Any metal salt derived from a protein.

proteinates
plural of proteinate

proteinemia
The presence of protein in the blood (which is always true); often, more specifically, an excess (hyperproteinemia).

proteinoplast
A specialized leucoplast containing protein in crystalline form for use in enzyme activity.

proteinoplasts
plural of proteinoplast

protelomerase
Any enzyme that generates and protects "hairpin" telomeres

protelomerases
plural of protelomerase

proteoheparan
A complex of protein and heparan (always as a sulphate)

proteophosphoglycan
A complex of a protein and a phosphoglycan

proteophosphoglycans
plural of proteophosphoglycan

proteosome
Alternative spelling of proteasome.

proteosomes
plural of proteosome

proteostome
Misspelling of proteosome.
Misspelling of protostome.

proteosynthesis
The biosynthesis of protein

proteovesicle
A vesicle composed of protein

proteovesicles
plural of proteovesicle

protesome
Misspelling of proteasome.

prothrombinase
A complex that catalyzes the conversion of prothrombin to thrombin in the presence of calcium ions.

prothrombinases
plural of prothrombinase

protidemia
The presence of excess protein in the blood

protoanemonin
A toxin found in all plants of the buttercup family (Ranunculaceae), produced by an enzymatic process from the glucoside ranunculin.

protooncoprotein
Any protein that is converted to an oncoprotein

protooncoproteins
plural of protooncoprotein

prototoxin
Any substance that is converted into a toxin

prototoxins
plural of prototoxin

protropin
A polypeptide growth hormone secreted by the pituitary gland; a synthetic version used medicinally

proxicromil
An antiasthmatic drug.

proxifezone
An antidiarrheal drug.

prozapine
An antispasmodic drug.

prozone
The range of antibody concentrations within which reaction is inhibited.
The anterior zone of the pronotum in an insect of the family Acrididae or Gryllidae.

prozones
plural of prozone

pseudoazurin
Synonym of cupredoxin.

pseudoazurins
plural of pseudoazurin

pseudocholinesterase
One of the two types of cholinesterase (the other being acetylcholinesterase), found primarily in the liver where it hydrolyses butyrylcholine.

pseudocholinesterases
plural of pseudocholinesterase

pseudoenzyme
Any protein that has some biochemical function but is not a true enzyme

pseudoenzymes
plural of pseudoenzyme

pseudolysin
A peptidase enzyme that has the characteristics of a lysin

pseudolysins
plural of pseudolysin

pseudopeptide
An amide of an amino acid that does not occur in natural peptides or proteins, especially one introduced into a polypeptide chain

pseudopeptides
plural of pseudopeptide

pseudoreceptor
A receptor protein that lacks an intracellular serine/threonine protein kinase domain

pseudoreceptors
plural of pseudoreceptor

pseudosubstrate
Any substance that mimics the substrate of an enzyme and thus inhibits its activity

pseudosubstrates
plural of pseudosubstrate

pseudotrypsin
A proteoform of trypsin

pseudovitamin
A vitamin-like analogue that is biologically inactive in humans.

pseudovitamins
plural of pseudovitamin

psicose
The monosaccharide (3R,4R,5R)-1,3,4,5,6-pentahydroxyhexan-2-one that is an epimer of fructose, also called allulose.

psicoses
plural of psicose

psoriasin
An inflammatory calcium-binding protein found on human skin

psuedosubstrate
Misspelling of pseudosubstrate.

psychobiomarker
A psychologically-regulated biomarker

psychobiomarkers
plural of psychobiomarker

pullulanase
Any of a class of enzyme that catalyze the hydrolysis and transglycosylation of α-1,4 or α-1,6 linkages in polysaccharides such as pullulan.

pullulanases
plural of pullulanase

puwainaphycin
Amy of a group of cytotoxic lipopeptides present in some cyanobacteria

pyridofylline
A bronchodilator drug.

pyridosine
The amino acid (2S)-2-amino-6-(5-hydroxy-2-methyl-4-oxopyridin-1-yl)hexanoic acid found in heated milk

pyridoxamine
A constituent of vitamin B6, essential for the metabolism of starch and amino acids.

pyridoxamines
plural of pyridoxamine

pyrinoline
An antiarrhythmic drug.

pyronaridine
A particular antimalarial drug

pyrophosphohydrolase
Any enzyme that catalyzes the hydrolysis of pyrophosphate

pyrophosphohydrolases
plural of pyrophosphohydrolase

pyrophosphokinase
Any enzyme that transfers pyrophosphate (diphosphate)

pyrophosphokinases
plural of pyrophosphokinase

pyrophosphorylase
Any pyrophosphate transferase

pyrophosphorylases
plural of pyrophosphorylase

pyrophosphotransferase
Synonym of pyrophosphokinase.

pyrophosphotransferases
plural of pyrophosphotransferase

pyrrolidinylthiambutene
An opioid analgesic drug from the thiambutene family.

pyrrolysine
An amino acid found in methanogenic bacteria.

quaalude
Alternative letter-case form of Quaalude.

quaaludes
plural of quaalude

quarfloxin
An antineoplastic drug.

quercetinase
Any enzyme, typically a dioxygenase, that breaks down quercetin.

quercetinases
plural of quercetinase

queuosine
A modified nucleoside present in certain tRNAs in bacteria and eukaryotes.

quifenadine
An antiarrhythmic drug.

quinacainol
An antiarrhythmic drug.

quinacrine
A drug with various applications, including as an antimalarial, having the chemical formula C₂₃H₃₀ClN₃O.

quinacrines
plural of quinacrine

quindecamine
An antibacterial drug.

quindoxin
A drug formerly used in animal feeds to promote growth.

quinelorane
A drug which acts as a dopamine agonist selective for the D2 subtype.

quinetalate
An antiasthma drug.

quinezamide
An antiulcer drug.

quinfamide
An amoebicidal drug.

quinicrine
Misspelling of quinacrine.

quinocide
The irritant antimalarial drug 8-[(4-aminopentyl)amino]-6-methoxyquinoline

quinoform
The drug clioquinol.

quinohemoprotein
A quinoprotein form of a hemoprotein

quinohemoproteins
plural of quinohemoprotein

quinotolast
An antiallergic drug.

quinuclidinium
The cationic form of quinuclidine

quisinostat
The drug N-hydroxy-2-[4-({[(1-methyl-1H-indol-3-yl)methyl]amino}methyl)-1-piperidinyl]-5-pyrimidinecarboxamide

quisultazine
An antiulcer drug.

racecadotril
An antidiarrheal drug that is a peripherally-acting enkephalinase inhibitor.

racefemine
An antispasmodic drug.

racemase
Any enzyme that catalyzes the stereochemical inversion of the configuration about an asymmetric carbon atom in a substrate having only one center of asymmetry.

racemases
plural of racemase

radioimmunoprotein
radiolabelled immunoprotein

radioimmunoproteins
plural of radioimmunoprotein

radiometabolite
A radiolabelled metabolite

radiometabolites
plural of radiometabolite

radionucleotide
Any nucleotide labelled with a radioactive tracer.

radionucleotides
plural of radionucleotide

radiopeptide
A radiolabelled peptide

radiopeptides
plural of radiopeptide

radioprotectant
Any drug that protects against cell damage caused by radiation.

radioprotectants
plural of radioprotectant

radiosensitiser
Alternative form of radiosensitizer.

radiosensitisers
plural of radiosensitiser

radiosensitizer
Any drug that makes tumour cells more sensitive to radiation therapy.

radiosensitizers
plural of radiosensitizer

raffinase
A form of galactosidase that hydrolyses raffinose.

raffinases
plural of raffinase