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Peptide sequences are conventionally written from the:
For basic amino acids, the pI is calculated using which two pKa values?
تÙضÙØ
ÙÙ
ا Ùؚدا٠اÙØÙ
ض اÙاÙ
ÙÙÙ ØاÙ
ض٠Ùاخد اÙ٠زÙز ارÙاÙ
ÙÙÙ ÙÙ
ا pka1 + pkaR
ÙÙ
ا ÙÙÙÙ Ùاعد٠اعÙ٠زÙز ارÙاÙ
ÙÙÙ ÙÙ
ا pka2 + pkaR
اÙÙاÙÙÙ ØšÙÙÙ٠زÙز ارÙاÙ
تجÙ
عÙÙ
٠تÙسÙ
عÙÙ 2 ( Ù
تÙسط ÙعÙÙ )
For acidic amino acids, the isoelectric point (pI) is calculated using which two
pKa values?
At pH values above the pI, an amino acid will carry an overall:
Which amino acids play important roles in ammonia detoxification through the urea cycle?
At alkaline pH, the amino group of an amino acid is:
At acidic pH, an amino acid is mainly in which form?
In the formation of a tetrapeptide from four free amino acids, how many molecules of water are released?
At the isoelectric point (pI), an amino acid:
Tyrosine is a precursor for which of the following?
Hydroxyproline and hydroxylysine are important for:
Which amino acid is the direct precursor of serotonin?
Ornithine and citrulline are best described as:
ÙÙ٠اس؊ÙØ© عÙ٠اÙÙ ØŽÙت تÙ
ت ( ØŽÙتات اÙÙÙÙØ© ) ðâ€ïž
Which amino acid contains a phenolic hydroxyl group ?
Which statement regarding Proline is CORRECT?
More than 300 amino acids exist in nature, but proteins are mainly composed of 20 standard α-amino acids.
Which amino acid can exist in both protonated and neutral forms near physiological pH because of its side chain?
