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Protein S - Definition |
| Related Words: Antheridium, Casein, Chlorophyll, Collagen, Dipeptide, Elastin, Globin, Globulin, Glycoprotein, Hemoglobin, Histone, Interferon, Lipid, Lipoprotein, Lysozyme |
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Protein S is a vitamin K-dependent plasma glycoprotein synthesized in the liver and it functions as a cofactor to Protein C in the inactivation of Factors Va and VIIIa.
In the circulation, Protein S exists in two forms: a free form and a complex form bound to complement protein C4b. Only the free form has cofactor activity.
The gene (PROS1) is located on the third chromosome (3p11.1-q11.2).
Protein S deficiency is a rare blood disorder which can lead to an increased risk of thrombosis.
External link
- OMIM 176880 (http://www.ncbi.nlm.nih.gov/entrez/dispomim.cgi?id=176880)
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Example Usage of Protein |
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1BronzeGod: @averysimplegirl I go first thing in the morning but have a Protein shake with a scoop of instant coffee in it- there's no way I'd go empty! |
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Krasnostein: i always forget how filling Protein is. Bought a bun to go with my yoghurt for breakfast but the yoghurt was enough |
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BriannNxSupreme: @_dan_e_did you take some Protein? |
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