Probably depends on how you make it, but going from first principles. What do you think is more likely to exist as an R-OH, the phosphate or the alcohol? (there might be a slight clue in the name).
My friend and I were debating this point, but unfortunately I don't have my science texts on me. I thought it would be serine that loses it's hydroxyl.
Phosphates dont normally have protonated edges, do they?
Not unless you're in a really acidic environment, and certainly not when compared to alcohol side chains.
I mean my straight up answer is I don't know, and I thought generally phosphatidyl serine was made from converting other phospholipids or through CDP-diglyceride. But if you just had a vat of serine and phosphatic acid and mixing them together, then that's probably what happens.
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Not unless you're in a really acidic environment, and certainly not when compared to alcohol side chains.
I mean my straight up answer is I don't know, and I thought generally phosphatidyl serine was made from converting other phospholipids or through CDP-diglyceride. But if you just had a vat of serine and phosphatic acid and mixing them together, then that's probably what happens.