Biochemistry. More fully vegetable casein. The protein legumin. Now rare.

A complex, nitrogenous organic substance of a kind that forms a major component of living tissue; a protein, a polypeptide. Also as a mass noun…

= myoglobin, n.

Any of a class of small basic proteins which are found in association with DNA in chromatin, and play an important role in the regulation of gene…

Any of a class of proteins (the proteoses) formed by the decomposition of a globulin by the action of pepsin.

A crystalline globulin found in the seeds of the kidney bean.

An albumin found in some cereal grains.

Nucleoprotein in which histones form the protein component; a compound of this nature.

A kind of nucleoprotein or phosphoprotein.

A mucin-like glycoprotein; a mucoprotein.

Any of various peptone-like substances produced as the initial products of the hydrolysis of protamines.

Biology. = mucoid, n. rare. disused.

= myoglobin, n.

Nucleoprotein in which protamines form the protein component; a compound of this nature.

= thromboplastin n. at thrombo-, comb._form affix.

protein, or a protein, present in leaves, esp. when extracted for use as food or as a dietary supplement.

Biochemistry. Any of a large group of haem-containing proteins found in aerobic and many anaerobic organisms, the typical function of which is…

Glycoprotein that is rich in acidic polysaccharides; a particular glycoprotein of this type, esp. a proteoglycan.

The protein responsible for oxygen transport and storage in muscle, structurally resembling one of the subunits of haemoglobin.

Any of a group of conjugated proteins having flavin mononucleotide or flavin adenine dinucleotide as cofactor and involved in oxidation-reduction…

The oxygenated (red) form of myoglobin, responsible for the red colour of fresh meat.

Any of a group of proteins which store iron in a readily available, soluble form and which are widely distributed in the tissues of animals and…

the principal lipoprotein in the yolk of eggs.

Any of various chemically similar water-soluble proteins found principally in the exoskeletons and cuticles of arthropods.

a peptone formed by the action of pancreatin on casein.

A protein formed in the kidney that stimulates the formation of red blood cells (erythropoiesis).

A phosphoprotein found in egg yolk.

Any of a group of glycoproteins which are combined with retinal in rhodopsin and other visual pigments and are released by the action of light.

A plasma glycoprotein that is involved in the maintenance of normal capillary permeability, and that occurs at elevated concentrations in…

Any of a class of small, cysteine-rich proteins that bind heavy metals (esp. zinc, cadmium, and copper).

A blue copper-containing protein (differing slightly from species to species) which is found in the chloroplasts of green plants and in certain…

A protein which occurs in the jellyfish Aequorea forskalea (and certain other marine organisms) and luminesces with a blue light when it combines…

Any of certain proteins which contain small clusters of iron and sulphur atoms and take part in electron-transfer processes in cells.

low-density lipoprotein.

A protein present in fetal serum; spec. (more fully alpha-fetoprotein) a glycoprotein which is the predominant serum protein of the fetus and can…

Any of several globular proteins, containing sulphur in the form of the sulphydryl groups of cysteine, which participate in intracellular…

Any of a small family of proteins which bind to and cross-link actin microfilaments in the cytoskeleton of eukaryotic cells, first identified from…

a ferredoxin found in mitochondria of the adrenal cortex.

A protein found in milk and other secretions, whose iron-binding properties have a bactericidal effect.

= myoglobin, n. rare.

Any of a class of low-molecular-weight proteins found in certain bacteria and archaebacteria and concerned in intracellular electron-transfer…

A protein permanently attached to a biological membrane which is involved in transmembrane transport of a single species of ion or molecule in…

A glycoprotein found in the berry of the West African shrub Synsepalum dulcificum, which makes sour substances taste sweet whilst having no taste…

In cilia and other components of eukaryotic cells capable of motion: the protein which constitutes the links or bridges between microtubule…

A protein present in the purple membrane of some strains of the bacterium Halobacterium halobium, which when illuminated mediates the transport…

A protein that contains molybdenum.

A protein isolated from the berries of the tropical African plant Dioscoreophyllum cumminsii (family Menispermaceae) that is several thousand…

Any of a varied group of small proteins which are secreted by cells of many types and which mediate cellular interaction in immune and inflammatory…

A globular protein found on the inside of the plasma membrane in certain cells, which mediates the attachment of other proteins, esp. that of…

A protein with a cagelike molecular structure that forms the major part of the coat of some coated pits and the coated vesicles.

A variant form of a protein which is separable from other forms of the same protein by electrophoresis (in some cases comprising variant forms which…

Biochemistry and Molecular Biology. A protein, or a member of a small group of related proteins, which is involved in the assembly and maintenance…

= uniporter, n.

A (real or artefactual) strand of cytoplasm observed by high voltage electron microscopy and forming part of a three-dimensional network within…

Originally: any of a class of proteins which, as trimers, form membrane channels in Gram-negative bacteria. Later also: any of a class of similar…

A calcium-binding protein that is present in the organic matrix of bone and is activated by vitamin K.

A calcium-binding protein in eukaryotic cells which when complexed with calcium regulates many intracellular functions, esp. the action of enzymes.

Any cytokine produced by monocytes and macrophages.

proliferating cell nuclear antigen; originally called cyclin.

A cellular protein found in a wide variety of cell types, usually as a constituent of the intermediate filaments of the cytoskeleton.

Any of a group of glycoproteins, produced by leucocytes, which control certain aspects of haemopoiesis, esp. the formation of lymphocytes, and some…

An adhesive glycoprotein in the basement membrane and the ground substance of connective tissue.

A giant protein which is found in the sarcomeres of striated muscle tissue; also called connectin.

A protein found in the microvilli of the small intestine and involved in the calcium-dependent cleaving of actin microfilaments, and hence in the…

A protein found in cell nuclei, in amounts which fluctuate during the cell cycle, being greatest during DNA replication. Now called proliferating…

Biochemistry. In form triskelion. A molecular structure suggestive in shape of this figure, adopted by individual elements of the cage structure…

An actin-binding protein found in macrophage cells which binds selectively to the pointed end of microfilaments and is involved in the regulation…

A protein released by killer cells of the immune system which destroys targeted cells by creating pore-like lesions in their membranes.

A nuclear phosphoprotein that is present in non-replicating and senescent cells, but not in cells that are replicating.

A gonadal glycoprotein which acts to stimulate the synthesis and secretion of follicle-stimulating hormone by the pituitary gland, and has a…

Any of a class of proteins that are expressed on the surfaces of cells and are specific to certain types of tissue, thus serving to identify the…

Any of a group of three small proteins which are found in neurons, esp. near synapses, and are of uncertain function; esp. (in full alpha-synuclein)…

Any of a family of small proteins which have a variety of effects on immune function, including a chemoattractant effect on white blood cells, and…