ST3 β-galactoside α-2,3-sialyltransferase 3 (ST3GAL3,ST3GalIII, SIAT6) is a sialic acid transferring type II membrane protein found primarily in the Gogi apparatus; wherein sialic acid is transferred from CMP-sialic acid to galactose residues. ST3GAL3 forms the sialyl Lewis epitope on proteins. Defects in ST3GAL3 are associated with cognitive dysfunction.
Specificity
Anti-ST3GAL3 (AB1) polyclonal antibody reacts with chicken, pig, bovine, canine, human, mouse, and rat β-galactoside α-2,3-sialyltransferase 3 proteins.
Immunogen
Synthetic peptide directed towards the N terminal region of human ST3GAL3
Application
Anti-ST3GAL3 (AB1) polyclonal antibody is used to tag β-galactoside α-2,3-sialyltransferase 3 for detection and quantitation by Western blotting and in plasma by immunohistochemical (IHC) techniques. It is used as a probe to determine the roles of β-galactoside α-2,3-sialyltransferase 3 in sialylation of glycoproteins in the Golgi apparatus.
Biochem/physiol Actions
ST3GAL3 is a type II membrane protein that catalyzes the transfer of sialic acid from CMP-sialic acid to galactose-containing substrates. ST3GAL3 is normally found in the Golgi apparatus but can be proteolytically processed to a soluble form. This protein is a member of glycosyltransferase family 29.The protein encoded by this gene is a type II membrane protein that catalyzes the transfer of sialic acid from CMP-sialic acid to galactose-containing substrates. The encoded protein is normally found in the Golgi apparatus but can be proteolytically processed to a soluble form. This protein is a member of glycosyltransferase family 29. Multiple transcript variants encoding several different isoforms have been found for this gene.
Sequence
Synthetic peptide located within the following region: MTAIFPRFSKPAPMFLDDSFRKWARIREFVPPFGIKGQDNLIKAILSVTK
Physical form
Purified antibody supplied in 1x PBS buffer with 0.09% (w/v) sodium azide and 2% sucrose.
Disclaimer
Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.
Three missense variants of ST3GAL3 are known to be responsible for a congenital disorder of glycosylation determining a neurodevelopmental disorder (intellectual disability/epileptic encephalopathy). Here we report a novel nonsense variant, p.Y220*, in two dichorionic infant twins presenting a picture of
American journal of human genetics, 89(3), 407-414 (2011-09-13)
The genetic variants leading to impairment of intellectual performance are highly diverse and are still poorly understood. ST3GAL3 encodes the Golgi enzyme β-galactoside-α2,3-sialyltransferase-III that in humans predominantly forms the sialyl Lewis a epitope on proteins. ST3GAL3 resides on chromosome 1
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