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Sodium-cooled fast reactor. A sodium-cooled fast reactor is a fast neutron reactor cooled by liquid sodium . The initials SFR in particular refer to two Generation IV reactor proposals, one based on existing liquid metal cooled reactor (LMFR) technology using mixed oxide fuel (MOX), and one based on the metal-fueled integral fast reactor .
SFR fuel expands when the reactor overheats, automatically slowing down the chain reaction, making it passively safe. [40] One SFR reactor concept is cooled by liquid sodium and fueled by a metallic alloy of uranium and plutonium or spent nuclear fuel, the "nuclear waste" of light water reactors. The SFR fuel is contained in steel cladding.
Histone acetylation and deacetylation are essential parts of gene regulation. These reactions are typically catalysed by enzymes with "histone acetyltransferase" (HAT) or "histone deacetylase" (HDAC) activity. Acetylation is the process where an acetyl functional group is transferred from one molecule (in this case, acetyl coenzyme A) to another.
20807 Ensembl ENSG00000112658 ENSMUSG00000015605 UniProt P11831 Q9JM73 RefSeq (mRNA) NM_003131 NM_001292001 NM_020493 RefSeq (protein) NP_001278930 NP_003122 NP_003122.1 NP_065239 Location (UCSC) Chr 6: 43.17 – 43.18 Mb Chr 17: 46.86 – 46.87 Mb PubMed search Wikidata View/Edit Human View/Edit Mouse Serum response factor, also known as SRF, is a transcription factor protein. Function Serum ...
Main article: Leukocyte adhesion deficiency. Leukocyte adhesion deficiency (LAD) is a genetic disease associated with a defect in the leukocyte extravasation process, caused by a defective integrin β2 chain (found in LFA-1 and Mac-1). This impairs the ability of the leukocytes to stop and undergo diapedesis.
Mast cell activation syndrome (MCAS) is a term referring to one of two types of mast cell activation disorder (MCAD); the other type is idiopathic MCAD. [1] MCAS is an immunological condition in which mast cells inappropriately and excessively release chemical mediators, resulting in a range of chronic symptoms, sometimes including anaphylaxis or near-anaphylaxis attacks.
Thrombin is produced by the enzymatic cleavage of two sites on prothrombin by activated Factor X (Xa). The activity of factor Xa is greatly enhanced by binding to activated Factor V (Va), termed the prothrombinase complex. Prothrombin is produced in the liver and is co-translationally modified in a vitamin K -dependent reaction that converts 10 ...
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