complement protein C4b-binding protein (C4BP). In humans, protein S is encoded by the PROS1 gene. Protein S plays a role in coagulation. Protein S is named...

Protein S deficiency is a disorder associated with increased risk of venous thrombosis. Protein S, a vitamin K-dependent physiological anticoagulant,...

either (protein C or protein S) may lead to thrombophilia (a tendency to develop thrombosis). Impaired action of Protein C (activated Protein C resistance)...

Proteins are large biomolecules and macromolecules that comprise one or more long chains of amino acid residues. Proteins perform a vast array of functions...

Spike (S) glycoprotein (sometimes also called spike protein, formerly known as E2) is the largest of the four major structural proteins found in coronaviruses...

host cells. Not all viruses have envelopes. A viral envelope protein or E protein is a protein in the envelope, which may be acquired by the capsid from...

The S100 proteins are a family of low molecular-weight proteins found in vertebrates characterized by two calcium-binding sites that have helix-loop-helix...

Protein C, also known as autoprothrombin IIA and blood coagulation factor XIV,: 6822  is a zymogen, that is, an inactive enzyme. The activated form plays...

The green fluorescent protein (GFP) is a protein that exhibits green fluorescence when exposed to light in the blue to ultraviolet range. The label GFP...

[acyl-carrier-protein] S-malonyltransferase (EC 2.3.1.39) is an enzyme that catalyzes the chemical reaction malonyl-CoA + acyl carrier protein ⇌ CoA +...

S-Glutathionylation is the posttranslational modification of protein cysteine residues by the addition of glutathione, the most abundant and important...

[acyl-carrier-protein] S-acetyltransferase (EC 2.3.1.38) is an enzyme that catalyzes the reversible chemical reaction acetyl-CoA + [acyl-carrier-protein] ⇌ {\displaystyle...

Proteins are essential nutrients for the human body. They are one of the building blocks of body tissue and can also serve as a fuel source. As a fuel...

S-Acylation is the process of chemically linking a molecule to another molecule via a thioester bond. Protein S-acylation is a sub-type of S-acylation...

Protein folding is the physical process by which a protein, after synthesis by a ribosome as a linear chain of amino acids, changes from an unstable random...

are proteins which contain oligosaccharide (sugar) chains covalently attached to amino acid side-chains. The carbohydrate is attached to the protein in...

Whey protein is a mixture of proteins isolated from whey, the liquid material created as a by-product of cheese production. The proteins consist of α-lactalbumin...

technique of precipitating a protein antigen out of solution using an antibody that specifically binds to that particular protein. This process can be used...

protein C and protein S, with increased synthesis of prothrombotic proteins Factor VIII, von Willebrand factor, and fibrinogen. Activated protein C binds to...

Protein S is a protein found in Myxococcus xanthus. Its name derives from being the "S" band in an alphabetical ordering of proteins run from Myxococcus...

methylated-DNA-[protein]-cysteine S-methyltransferase (EC 2.1.1.63) is an enzyme that catalyzes the chemical reaction DNA (containing 6-O-methylguanine) + protein L-cysteine...

anticoagulant protein C and protein S, and the factor X-targeting protein Z. The bone Gla protein osteocalcin, the calcification-inhibiting matrix Gla protein (MGP)...

Protein–protein interactions (PPIs) are physical contacts of high specificity established between two or more protein molecules as a result of biochemical...

Protein A is a 42 kDa surface protein originally found in the cell wall of the bacteria Staphylococcus aureus. It is encoded by the spa gene and its regulation...

Protein toxicity is the effect of the buildup of protein metabolic waste compounds, like urea, uric acid, ammonia, and creatinine. Protein toxicity has...

other organs. The condition has also been described in adults. Protein C and protein S deficiency have also been associated with an increased risk of...

C-reactive protein (CRP) is an annular (ring-shaped) pentameric protein found in blood plasma, whose circulating concentrations rise in response to inflammation...

nonstructural S proteins (NSs) are synthesized by viral DNA/RNA and do not play a role in the replication or the viral protein coating. The nonstructural S segment...

transmembrane protein is a type of integral membrane protein that spans the entirety of the cell membrane. Many transmembrane proteins function as gateways...

Protein methods are the techniques used to study proteins. There are experimental methods for studying proteins (e.g., for detecting proteins, for isolating...