Section 5- Carbs, lipids, membrane/membrane proteins unit 4

phosphorylated sugars

key intermediates in energy generation and biosynthesis

what does phosphorylated sugars commonly modify?

carbohydrates

what does phosphorylation do to sugars?

makes sugars anionic and prevents them from leaving the cell

what does phosphorylated sugars facilitate

metabolism of sugars

O-glycosidic

oxygen from alcohol attacks anomeric carbon (golgi)

N-glycosidic

nitrogen from alcohol attacks anomeric carbon

how are glycosidic bonds formed?

glycotransferase catalyze glycosidic bonds

how are glycosidic bonds formed/broken?

glycosidic hydrolases through hydrolysis

delta numbering

location of first carbon of the alkene in relationship to the carbonyl carbon

omega numbering

location of first carbon of alkene in relationship to the terminal methyl

why do membranes need different composition?

composition drives

what is the role of size balance and fatty acid composition on membrane curvature?

size balance between head group and hydrophobic tails affect membrane curvature

how does membrane interact with proteins?

lipids can recruit lipid-binding proteins or be lipids for proteins

integral membrane protein

span the membrane through alpha helices or beta-barrels

peripheral membrane proteins

adhere temporarly to the biological membrane

amphitropic membrane protein

bind weakly to membrane lipids