Now updated for CSW19. New words, if any, and new inflections of existing words, are shown in red.
| abrin | a poisonous protein present in the jequirity bean. |
| actin | a protein found in muscle. |
| albumin | (Lat.) the protein part of egg-white. |
| aleuron | a protein found in flour. |
| aleurone | a protein found in flour. |
| aleuronic | of or like aleuron, a protein found in flour. |
| angiotensin | a protein that causes a rise in blood pressure. |
| antiporter | a membrane protein that transports substances across cell membranes. |
| apo | (Short for) apolipoprotein, a type of protein. |
| apoenzyme | a protein component which combines with a coenzyme. |
| apoprotein | the protein component of a conjugated protein. |
| aquaporin | any of a group of proteins in a cell membrane that allow the passage of water across the membrane. |
| avidin | a protein found in egg-white. |
| calmodulin | a protein found in plant and animal cells. |
| capsid | a proteinaceous viral cover. |
| capsomer | a protein forming a capsid. |
| capsomere | any of the protein units that together form the capsid of a virus. |
| casein | a protein obtained from milk, forming the basis of cheese. |
| caseinogen | the principal protein of milk, converted to casein by rennin. |
| caseose | a proteose, a substance derived from protein in digestion. |
| chemokine | a type of protein. |
| chromoprotein | any of various proteins (as hemoglobins, carotenoids, or flavoproteins) having a pigment as a prosthetic group. |
| colicin | a protein lethal to other colonobacilli. |
| colicine | a protein lethal to other colonobacilli. |
| collagen | a fibrous protein that is the chief constituent of connective tissue and yields gelatin on boiling. |
| concanavalin | a protein that occurs in the jack bean and is a mitogen and hemagglutinin. |
| cyclin | a type of protein. |
| cytokine | a protein chemical messenger that assists the immune system. |
| daidzein | a type of protein. |
| dystrophin | a protein essential to normal muscle function, found to be lacking in muscular dystrophy sufferers. |
| elastin | a protein, the chief constituent of elastic tissue. |
| eledoisin | a small protein from the salivary glands of various octopuses. |
| euglobulin | a simple protein that does not dissolve in pure water. |
| ferredoxin | an iron-containing plant protein. |
| ferritin | a protein in which iron is stored in the liver. |
| fibrillin | a protein found in connective tissue. |
| fibrin | an insoluble protein formed by enzyme action from fibrinogen when blood coagulates, which forms a fibrous network round the clot. |
| flagellin | a polymeric protein that is the chief constituent of bacterial flagella. |
| flavoprotein | a protein which serves as an electron carrier in the electron transfer chain. |
| gliadin | one of a group of proteins found in wheat and rye, aka prolamine. |
| gliadine | one of a group of proteins found in wheat and rye, aka prolamine. |
| globin | a protein constituent of haemoglobin. |
| globulin | any of a group of simple proteins, including gamma globulin, that are generally insoluble in water but soluble in salt solutions. |
| glucoprotein | any of the compounds formed by the conjugation of a protein with a substance containing a carbohydrate group other than a nucleic acid. |
| glutelin | a simple protein found in cereals. |
| glutenin | a type of protein. |
| glycoprotein | any of the compounds formed by the conjugation of a protein with a substance containing a carbohydrate group other than a nucleic acid. |
| haptoglobin | a protein that combines with free haemoglobin in the blood and prevents its filtration through the kidney. |
| harpin | a type of protein produced by pathogens in plants that trigger the plant's defence mechanism. |
| hemoprotein | a conjugated protein, such as hemoglobin or cytochrome, whose prosthetic group is a porphyrin combined with iron. |
| histone | any of a group of simple proteins present in chromosomes and believed to act as gene inhibitors. |
| hordein | a protein found in barley grain. |
| immunoglobulin | an immune protein. |
| integrin | any of a superfamily of cell surface proteins that bind to components of the extracellular matrix, facilitating the cell adhesion and signalling. |
| interferon | any of several proteins produced by cells infected with a virus and having the ability to inhibit viral growth. |
| interleukin | any of a group of proteins that control the production of blood cells and play an important part in the combating of infection. |
| isoform | a protein similar in function but not in form to another. |
| kallikrein | a hypotensive protein that liberates kinins from blood plasma proteins. |
| lactalbumin | a protein, present in milk, which contains all of the essential amino acids. |
| lactoglobulin | a crystalline protein fraction that is obtained from the whey of milk. |
| lactoprotein | any protein present in milk. |
| laminin | a type of protein. |
| lectin | any of a number of naturally occurring substances, usually proteins derived from plants, which act like antibodies but are not formed in response to an antigen. |
| leptin | a protein produced by fat cells in the body. |
| leucosin | a cereal albumin or simple protein. |
| lipoprotein | a water-soluble protein found in the blood, which carries cholesterol. |
| luciferin | a protein-like substance in the luminous organs of certain animals, which is acted on by the enzyme luciferase to produce bioluminescence. |
| metaprotein | a protein denatured by acid or alkaline hydrolysis that is soluble in acids or alkalis but insoluble in water. |
| monellin | a protein extracted from a West African red berry. |
| monokine | a type of protein. |
| mucoprotein | any of various complex conjugated proteins that contain polysaccharides and occur in body fluids and tissues. |
| myoglobin | a protein that stores oxygen in muscle. |
| myostatin | a protein that prevents muscles from growing too large. |
| nucleoprotein | a compound that consists of a protein (as a histone) conjugated with a nucleic acid (as a DNA) and that is the principal constituent of the hereditary material in chromosomes. |
| opsin | a protein which forms part of the visual pigment rhodopsin. |
| paracasein | another name for casein. |
| phaseolin | a protein found in kidney beans. |
| phosphoprotein | any of various proteins, such as casein, that contain combined phosphoric acid. |
| plastocyanin | a copper-containing protein that acts as an intermediary in photosynthetic electron transport. |
| polylysine | a protein whose polypeptide chain consists entirely of lysine residues. |
| polysome | a cluster of protein particles. |
| porin | any of a class of proteins through which molecules can diffuse. |
| prolamin | one of a group of proteins found in wheat and rye. |
| prolamine | one of a group of proteins found in wheat and rye. |
| properdin | a natural protein in blood that helps provide immunity to infectious disease. |
| protamin | any of a class of simple basic proteins which occur combined with nucleic acids (esp in fish sperm). |
| protamine | any of a class of simple basic proteins which occur combined with nucleic acids (esp in fish sperm). |
| proteid | an archaic name for protein. |
| proteide | (US) protein. |
| proteinaceous | of or related to protein. |
| proteinic | relating to protein. |
| proteinous | of or related to protein. |
| proteose | a substance derived from protein in digestion. |
| pyin | a protein contained in pus. |
| scleroprotein | a large class of proteins found in skeletal and connective tissue. |
| sclerotin | in insects, a protein in the cuticle that becomes hard and dark. |
| siderophilin | any of a group of blood glycoproteins that transport iron, aka transferrin. |
| sozin | a type of protein. |
| sozine | a type of protein. |
| spectrin | any one of a class of fibrous proteins found in the membranes of red blood cells, the brain, the intestine, etc. |
| thrombogen | a protein present in blood that is essential for the formation of thrombin. |
| thyroglobulin | an iodine-containing protein of the thyroid gland that is the precursor of thyroxine and triiodothyronine. |
| tropomyosin | a filamentous protein which controls the interaction of actin and myosin in muscle fibres. |
| troponin | a protein of muscle. |
| tubulin | a globular protein which forms the basic unit for the contraction of microtubules. |
| vitellin | a phosphoprotein present in the yolks of eggs. |
| zein | a protein found in Indian corn. |