Lactotriaosylceramide beta-1,4-galactosyltransferase

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Lactotriaosylceramide beta-1,4-galactosyltransferase
Lactotriaosylceramide beta-1,4-galactosyltransferase
Identifiers
EC no.	2.4.1.275
Databases
IntEnz	IntEnz view
BRENDA	BRENDA entry
ExPASy	NiceZyme view
KEGG	KEGG entry
MetaCyc	metabolic pathway
PRIAM	profile
PDB structures	RCSB PDB PDBe PDBsum
PMC
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PubMed	articles
NCBI	proteins

Lactotriaosylceramide beta-1,4-galactosyltransferase (EC 2.4.1.275, beta4Gal-T4, UDP-galactose:N-acetyl-beta-D-glucosaminyl-(1->3)-beta-D-galactosyl-(1->4)-beta-D-glucosyl-(1<->1)-ceramide beta-1,4-galactosyltransferase) is an enzyme with systematic name UDP-alpha-D-galactose:N-acetyl-beta-D-glucosaminyl-(1->3)-beta-D-galactosyl-(1->4)-beta-D-glucosyl-(1<->1)-ceramide 4-beta-D-galactosyltransferase.^[1] This enzyme catalyses the following chemical reaction

UDP-alpha-D-galactose + N-acetyl-beta-D-glucosaminyl-(1->3)-beta-D-galactosyl-(1->4)-beta-D-glucosyl-(1<->1)-ceramide

\rightleftharpoons

UDP + beta-D-galactosyl-(1->4)-N-acetyl-beta-D-galactosaminyl-(1->3)-beta-D-galactosyl-(1->4)-beta-D-glucosyl-(1<->1)-ceramide

References

^ Schwientek T, Almeida R, Levery SB, Holmes EH, Bennett E, Clausen H (November 1998). "Cloning of a novel member of the UDP-galactose:beta-N-acetylglucosamine beta1,4-galactosyltransferase family, beta4Gal-T4, involved in glycosphingolipid biosynthesis". The Journal of Biological Chemistry. 273 (45): 29331–40. doi:10.1074/jbc.273.45.29331. PMID 9792633.

External links

Lactotriaosylceramide+beta-1,4-galactosyltransferase at the U.S. National Library of Medicine Medical Subject Headings (MeSH)

[1] Schwientek T, Almeida R, Levery SB, Holmes EH, Bennett E, Clausen H (November 1998). "Cloning of a novel member of the UDP-galactose:beta-N-acetylglucosamine beta1,4-galactosyltransferase family, beta4Gal-T4, involved in glycosphingolipid biosynthesis". The Journal of Biological Chemistry. 273 (45): 29331–40. doi:10.1074/jbc.273.45.29331. PMID 9792633.

[1]

v t e Enzymes
Activity	Active site Binding site Catalytic triad Oxyanion hole Enzyme promiscuity Diffusion-limited enzyme Cofactor Enzyme catalysis
Regulation	Allosteric regulation Cooperativity Enzyme inhibitor Enzyme activator
Classification	EC number Enzyme superfamily Enzyme family List of enzymes
Kinetics	Enzyme kinetics Eadie–Hofstee diagram Hanes–Woolf plot Lineweaver–Burk plot Michaelis–Menten kinetics
Types	EC1 Oxidoreductases (list) EC2 Transferases (list) EC3 Hydrolases (list) EC4 Lyases (list) EC5 Isomerases (list) EC6 Ligases (list) EC7 Translocases (list)