Category: Albumin
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The molecular mayhem of immunogens, haptens, carriers and adjuvants
First up, the immunogen: the molecular maestro of the immune system, orchestrating a symphony of B-cells and T-cells like a conductor with a grudge. These substances don’t just knock politely on the immune system’s door—they kick it down with the force of a battering ram. Immunogens are a subset of antigens (because “antibody-generating” wasn’t obvious enough)…
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Evans blue
T-1824 or Evans blue, often incorrectly rendered as Evan’s blue, is an azo dye that has a very high affinity for serum albumin. Because of this, it can be useful in physiology in estimating the proportion of body water contained in blood plasma. It fluoresces with excitation peaks at 470 and 540 nm and an emission peak at 680 nm. Evans blue dye has been used as a viability assay on…
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Chondrin
Chondrin is a bluish-white gelatin-like substance, being a protein–carbohydrate complex and can be obtained by boiling cartilage in water. The cartilage is a connective tissue that contains cells embedded in a matrix of chondrin. Chondrin is made up of two proteins See also External links Charles Darwin – Insectivorous Plants Page 56 (added below minus the milk section) Categories: I therefore wished to…
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Methaemalbumin in Man (1939)
(Pseudo-methaemoglobin) Section of Therapeutics and Pharmacology and a list of related articles
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The neonatal fragment crystallizable (Fc) receptor (also FcRn, IgG receptor FcRn large subunit p51, or Brambell receptor) is a protein that in humans is encoded by the FCGRT gene
It is an IgG Fc receptor which is similar in structure to the MHC class I molecule and also associates with beta-2-microglobulin. In rodents, FcRn was originally identified as the receptor that transports maternal immunoglobulin G (IgG) from mother to neonatal offspring via mother’s milk, leading to its name as the neonatal Fc receptor. In humans, FcRn is present in the placenta where…
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Fetal bovine serum (FBS)
Fetal bovine serum (FBS) is derived from the blood drawn from a bovine fetus via a closed system of collection at the slaughterhouse. Fetal bovine serum is the most widely used serum-supplement for the in vitro cell culture of eukaryotic cells. This is due to it having a very low level of antibodies and containing more growth factors, allowing for versatility in many…
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Bovine serum albumin (Fraction V)
Bovine serum albumin (BSA or “Fraction V”) is a serum albumin protein derived from cows. It is often used as a protein concentration standard in lab experiments. The nickname “Fraction V” refers to albumin being the fifth fraction of the original Edwin Cohn purification methodology that made use of differential solubility characteristics of plasma proteins. By manipulating solvent concentrations, pH, salt levels, and temperature, Cohn was able…
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Serum albumin aka blood albumin
Serum albumin, often referred to simply as blood albumin, is an albumin (a type of globular protein) found in vertebrate blood. Human serum albumin is encoded by the ALB gene. Other mammalian forms, such as bovine serum albumin, are chemically similar. Serum albumin is produced by the liver, occurs dissolved in blood plasma and is the most abundant blood protein in mammals. Albumin is essential for maintaining the oncotic pressure needed for proper distribution of body fluids between…
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Ovotransferrin aka conalbumin
Ovotransferrin (conalbumin) is a glycoprotein of egg white albumen. Egg white albumen is composed of multiple proteins, of which ovotransferrin is the most heat reliable. It has a molecular weight of 76,000 daltons and contains about 700 amino acids. Ovotransferrin makes up approximately 13% of egg albumen (in contrast to ovalbumin, which comprises 54%). As a member of the transferrin and metalloproteinase family, ovotransferrin has been found to possess antibacterial…
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Ovalbumin
Ovalbumin (abbreviated OVA) is the main protein found in egg white, making up approximately 55% of the total protein. Ovalbumin displays sequence and three-dimensional homology to the serpin superfamily, but unlike most serpins it is not a serine protease inhibitor. The function of ovalbumin is unknown, although it is presumed to be a storage protein. Storage proteins Storage proteins serve as biological reserves of metal ions and amino acids, used by organisms. They…
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Tobacco-derived 4R-cembranoid confers neuroprotection against LPS-induced hippocampal inflammation in mice (decreases levels of pro-inflammatory cytokines; improves memory function; activates STAT3, Akt1, and CREB phosphorylation; and upregulates the mRNA levels of ORM2, GDNF, and C3) independent of the α7 nicotinic receptor
Rojas-ColĂłn, L.A., Dash, P.K., Morales-VĂas, F.A. et al. 4R-cembranoid confers neuroprotection against LPS-induced hippocampal inflammation in mice. J Neuroinflammation 18, 95 (2021). https://doi.org/10.1186/s12974-021-02136-9 LPS: Lipopolysaccharide “4R protects the hippocampus against inflammation and memory impairments triggered by LPS by lowering TNF-α and IL-1β levels and activation of the Akt1 and CREB signaling pathways. Astrocyte proteins involved in neuronal survival also…
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Effect of biotin deficiency on embryonic development in the domestic fowl (1944) with reference and cited by articles
The approximate biotin requirements of breeding hens have been established and the embryos examined for gross pathological symptoms and the approximate age at death are recorded. Cravens, W.W., W., & Sebesta, M.A. (1944). Effect of biotin deficiency on embryonic development in the domestic fowl. The Anatomical Record, 90. Reference articles Effect of Biotin on Reproduction in…
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Biotin
BIOTIN Biotin is involved in a wide range of metabolic processes in humans and in other organisms, primarily related to the utilization of fats, carbohydrates, and amino acids. The name biotin, borrowed from the German Biotin, derives from the Ancient Greek βίοτος (bĂotos; ‘life’) and the suffix “-in” (used in chemistry to indicate ‘forming’). AKA…
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Avidin is a tetrameric biotin-binding protein produced in the oviducts of birds, reptiles, amphibians
Dimeric members of the avidin family are also found in some bacteria. In chicken egg white, avidin makes up approximately 0.05% of total protein (approximately 1800 ÎĽg per egg). The tetrameric protein contains four identical subunits (homotetramer), each of which can bind to biotin (Vitamin B7, vitamin H) with a high degree of affinity and specificity. The dissociation constant of the avidin-biotin complex…
