Forwarded from شیمی آلی (Mohamad Tahma3bi)
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✔️ آمینواسید های کمیاب 💎 @class_biochem
#Rare_amino_acids Only a few important representatives of the non-proteinogenic amino acids are mentioned here. The basic amino acid #ornithine is an analogue of lysine with a shortened side chain. Transfer of a carbamoyl residue to ornithine yields #citrulline. Both of these amino acids are intermediates in the #urea_cycle. Dopa (an acronym of 3,4-dihydroxyphenylalanine) is synthesized by hydroxylation of tyrosine. It is an intermediate in the biosynthesis of #catecholamines and of melanin. It is in clinical use in the treatment of #Parkinson’s disease. #Selenocysteine, a cysteine analogue, occurs as a component of a few proteins—e.g., in the enzyme glutathioneperoxidas.
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🔰🔰🔰 Poly-Saccharides :
Polysaccharides are #ubiquitous in nature. They can be classified into three separate groups, based on their different functions :
1⃣ #Structural polysaccharides provide mechanical stability to cells, organs, and organisms.
2⃣ #Waterbinding polysaccharides are strongly hydrated and prevent cells and tissues from drying out.
3⃣ Finally, #reserve polysaccharides serve as carbohydrate stores that release monosaccharides as required. Due to their polymeric nature, reserve carbohydrates are #osmotically less active, and they can therefore be stored in large quantities within the cell.
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Polysaccharides are #ubiquitous in nature. They can be classified into three separate groups, based on their different functions :
1⃣ #Structural polysaccharides provide mechanical stability to cells, organs, and organisms.
2⃣ #Waterbinding polysaccharides are strongly hydrated and prevent cells and tissues from drying out.
3⃣ Finally, #reserve polysaccharides serve as carbohydrate stores that release monosaccharides as required. Due to their polymeric nature, reserve carbohydrates are #osmotically less active, and they can therefore be stored in large quantities within the cell.
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الکتروفورز IEF پروتئین ها را براساس کدام مورد از هم جدا می کند؟
Anonymous Quiz
18%
جرم
18%
دانسیته
35%
ایزوالکتریک pH
29%
بار الکتریکی
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الکتروفورز IEF پروتئین ها را براساس کدام مورد از هم جدا می کند؟
Isoelectric focusing (IEF), also known as electrofocusing, is a technique for separating different molecules by differences in their #isoelectric_point (pI).
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