Carbohydrates 9 Flashcards
proteins becomes linked to glycosylphosphatidylinositol as a means of anchoring it to a cell membrane
glypiation
Where does linkage occurs in glypiation?
carboxyl terminus of protein
very diverse collection of saccharide containing proteins
glycoproteins
attachment of the saccharide to protein
glycosylation
short saccharides attached to proteins
oligosaccharides
large saccharides attached to proteins
polysaccharides
Glycoproteins play important role in the immune system in antibodies as components of the ______________
major histocompatibility complex (MHC)
important for interactions between sperms and eggs, connective tissues and are abundant in egg whites and blood plasma
glycoproteins
two glycoproteins that are part of the HIV viral coat
gp41 and gp120
Examples of hormones that are glycoproteins
erythropoietin
human chorionic gonadotropin
follicle-stimulating hormone
luteinizing hormone
chemical process that occurs when a protein or lipid covalently binds to a sugar
glycation
How does glycation differs from glycosylation?
glycosylation is controlled by enzymes while glycation is driven by chemistry and concentration
What are the two properties of monosaccharides that drives glycation?
chemistry
concentration
True or False: Glycations may be endogenous or exogenous
True
arises mostly as a result of cooking food and this results in attachment of sugars to lipids or proteins to form AGE
exogenous glycation
