Tests
Beta-D-Glucan Assay
A laboratory assay designed to detect elevated levels of (1,3)-beta-D-glucan in serum as an indication of infection by certain fungi species.
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Tests
A laboratory assay designed to detect elevated levels of (1,3)-beta-D-glucan in serum as an indication of infection by certain fungi species.
Tests
The determination of the amount of beta-defensin 2 in a biological specimen.
Tests
The determination of the amount of amount of beta-Hydroxybutyrate being excreted in a biological specimen over a defined period of time (e.g. one hour).
Tests
The determination of the amount of beta-lactamase positive bacteria in a sample.
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A protein complex comprised of one T-cell surface glycoprotein CD3 delta chain (CD3D), one T-cell surface glycoprotein CD3 gamma chain (CD3G) and two T-cell surface glycoprotein CD3 epsilon chains (CD3E). CD3D, CD3G and CD3E are transmembrane proteins with one extracellular immunoglobulin domain and one intracellular ITAM domain. The CD3 complex is a T-cell co-receptor that noncovalently associates with either the disulfide bound heterodimeric alpha/beta T-cell receptor (TCR) or gamma/delta TCR and two copies of the accessory protein, T-cell surface glycoprotein CD3 zeta chain (CD247), which is a transmembrane protein with three ITAM domains. The TCR moiety of the TCR-CD3 complex binds to MHC and processed antigens on antigen presenting cells, which triggers phosphorylation of and cellular propagation of the signal by CD247 and the CD3 complex.
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Coagulation factor XII (615 aa, ~68 kDa) is encoded by the human F12 gene. This protein is involved in blood coagulation and fibrinolysis.
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A heterotrimeric protein complex composed of complement component 8 (C8) chains alpha, beta and gamma. The alpha and gamma chains form a disulfide-linked dimer that is noncovalently associated with the beta chain. C8 inserts itself into target cell membranes following formation of the C5b-6-7 complex and then recruits 10-16 molecules of C9 to complete the formation of the membrane attack complex.
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Complement component-4 (1744 aa, ~193 kDa) is part of the complement cascade, which mediates the innate immune response to infection. The full length protein is a precursor that is secreted as a trimeric molecule containing an alpha, beta and gamma chain. When the complement cascade is initiated, the protein is cleaved. This proteolysis releases both the alpha chain, C4 anaphylatoxin, which stimulates inflammation, and a dimer of the beta and gamma chains, which mediates the interaction between the antigen-antibody complex and other complement components.
Article
Research record from Clin Chem Lab Med, 2026-08-14. PMID 42609098.
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This gene is involved in signal transduction and regulation of transcription.
Tests
The determination of the amount of cystathionine beta-synthase in a sample.
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A non-essential sulfur-containing amino acid in humans, related to cystine, Cysteine is important for protein synthesis, detoxification, and diverse metabolic functions. Found in beta-keratin, the main protein in nails, skin, and hair, Cysteine is important in collagen production, as well as skin elasticity and texture. Also required in the manufacture of amino acid taurine, Cysteine is a component of the antioxidant glutathione, and plays a role in the metabolism of essential biochemicals such as coenzyme A, heparin, and biotin. (NCI04)