Alpha-D-galactose is d-Galactopyranose having alpha-configuration at the anomeric centre. It has a role as a mouse metabolite. It is an enantiomer of an alpha-L-galactose. Alpha-D-Galactose is a metabolite found in or produced by Escherichia coli (strain K12, MG1655).

A disaccharide composed of two units of galactose, galactose-alpha-1,3-galactose (alpha-gal), has been recognized as a potential allergen present in mammal meat. Alpha-gal allergy may be triggered by lone star tick bites.

The primary pathway for galactose metabolism is called the Leloir pathway, so named after Luis Federico Leloir. The initial stage of this pathway is the conversion of beta-D-galactose to alpha-D-galactose by the enzyme galactose mutarotase (GALM).

Being a galactan similar to agarose, its structure consists of repeating sequences of β-D-galactose and α-D-galactose with inconstant proportions of sulfate groups. The β-galactose is found as a D-isomer sugar while in agarose it is an L-isomer.

Galactose is defined as the -OH on C # 4 in a upward projection in the chair form,(also upward in the Haworth structure). Both glucose and galactose may be either alpha or beta on the anomeric carbon, so this is not distinctive between them.

alpha-D-galactose 1-phosphate Mass: 260.13578 Formula: C6H13O9P

alpha-D-Galactose 1-phosphate (alphaGal1P) is an important building block for the synthesis of nucleotide sugars that are substrates for glycosyltransferases. We have previously reported the creation of novel lactose phosphorylase enzymes that are useful for the synthesis of alphaGal1P from the chea …

Convert the following chair conformation of the sugar alpha-D-galactose into a structure that shows all the cis & trans relationships as hashed (down) and wedge (up) bonds. HO CH OH НО. HO OH • Use the wedge/hash bond tools to indicate stereochemistry where it exists.

Alpha-D-galactose is metabolized in species ranging from E. coli to mammals predominantly via a series of sequential reactions collectively known as the Leloir pathway.

AAAAI's Ask the Expert talks about Alpha-Galactose-D-galactose allergy and oral challenge.