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The biotin tag can be used in affinity chromatography together with a column that has avidin (or streptavidin or neutravidin) bound to it, which is the natural ligand for biotin. However, harsh conditions (e.g., 6M GuHCl at pH 1.5) are needed to break the avidin/streptavidin - biotin interaction, which will most likely denature the protein ...
Biotin carboxyl carrier protein (BCCP) refers to proteins containing a biotin attachment domain that carry biotin and carboxybiotin throughout the ATP-dependent carboxylation by biotin-dependent carboxylases. The biotin carboxyl carrier protein is an Acetyl CoA subunit that allows for Acetyl CoA to be catalyzed and converted to malonyl-CoA.
Biotin PEG2 amine is used as a linker [2] or cross linker. [3] This allows to attach specific compounds to proteins or to antibodies. A common use of biotin PEG2 amine is to use EDC and crosslink the amine in the biotin PEG2 amine to carboxyl groups on protein residues that are either aspartate or glutamate or the carboxy-terminus of proteins.
Biotin, synthesized in plants, is essential to plant growth and development. [22] Bacteria also synthesize biotin, [23] and it is thought that bacteria resident in the large intestine may synthesize biotin that is absorbed and utilized by the host organism. [18] Biosynthesis starts from two precursors, alanine and pimeloyl-CoA. These form 7 ...
In enzymology, a biotin carboxylase (EC 6.3.4.14) is an enzyme that catalyzes the chemical reaction ATP + biotin-carboxyl-carrier protein + CO 2 ⇌ {\displaystyle \rightleftharpoons } ADP + phosphate + carboxybiotin-carboxyl-carrier protein
Biotin - Avidin can bind up to four molecules of biotin simultaneously with a high degree of affinity and specificity. Avidin is a tetrameric biotin-binding protein produced in the oviducts of birds, reptiles and amphibians and deposited in the whites of their eggs. Dimeric members of the avidin family are also found in some bacteria. [1]