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Weinstein J, de Souza-e-Silva U, Paulson JC (1982). "Sialylation of glycoprotein oligosaccharides N-linked to asparagine Enzymatic characterization of a Gal beta 1 to 3(4)GlcNAc alpha 2 to 3 sialyltransferase and a Gal beta 1 to 4GlcNAc alpha 2 to 6 sialyltransferase from rat liver". J. Biol. Chem. 257 (22): 13845–53. PMID 7142180
Sialyltransferase may be responsible for the synthesis of the sequence NEUAC-Alpha-2,3-GAL-Beta-1,3-GALNAC-, found on sugar chains O-linked to thr or ser and also as a terminal sequence on certain gangliosides. These enzymes catalyse sialyltransfer reactions during glycosylation, and are type II membrane proteins.
In enzymology, a beta-galactoside alpha-2,3-sialyltransferase (EC 2.4.99.4) is an enzyme that catalyzes the chemical reaction CMP-N-acetylneuraminate + beta-D-galactosyl-1,3-N-acetyl-alpha-D-galactosaminyl-R ⇌ {\displaystyle \rightleftharpoons } CMP + alpha-N-acetylneuraminyl-2,3-beta-D-galactosyl-1,3-N-acetyl-alpha-D- galactosaminyl-R
In enzymology, a lactosylceramide alpha-2,3-sialyltransferase (EC 2.4.99.9) is an enzyme that catalyzes the chemical reaction CMP-N-acetylneuraminate + beta-D-galactosyl-1,4-beta-D-glucosylceramide ⇌ {\displaystyle \rightleftharpoons } CMP + alpha-N-acetylneuraminyl-2,3-beta-D-galactosyl-1,4-beta-D- glucosylceramide
The systematic name of this enzyme class is CMP-N-acetylneuraminate:beta-D-galactosyl-1,4-N-acetyl-D-glucosaminy l-glycoprotein alpha-2,3-N-acetylneuraminyltransferase. Other names in common use include sialyltransferase , cytidine , monophosphoacetylneuraminate-beta-galactosyl(1- , >4)acetylglucosaminide alpha2->3-sialyltransferase , alpha2->3 ...
In computer graphics, alpha compositing or alpha blending is the process of combining one image with a background to create the appearance of partial or full transparency. [1] It is often useful to render picture elements (pixels) in separate passes or layers and then combine the resulting 2D images into a single, final image called the composite .
This gene encodes an isoform of the alpha subunit of the elongation factor-1 complex, which is responsible for the enzymatic delivery of aminoacyl tRNAs to the ribosome. This isoform (alpha 1) is expressed in brain, placenta, lung, liver, kidney, and pancreas, and the other isoform (alpha 2) is expressed in brain, heart and skeletal muscle.
In computer graphics, pixels encoding the RGBA color space information must be stored in computer memory (or in files on disk). In most cases four equal-sized pieces of adjacent memory are used, one for each channel, and a 0 in a channel indicates black color or transparent alpha, while all-1 bits indicates white or fully opaque alpha.