histidine
L-Histidine is a basic, genetically coded semi-essential amino acid (meaning that the human body can produce it on its own with proper nutrition). It is essential for human development.
When referring to amino acids, the words essential and non-essential dont have their normal meanings. Essential amino acids are amino acids that the human body can not produce on its own and must gather from food sources. Non-essential amino acids are amino acids that the human body can produce on its own. Both kinds are required for human health.
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three letter abbreviation: his
one letter abbreviation: h
linear structure formula: NH-CH=N-CH=C-CH2-CH(NH2)-COOH
molecular formula: C6H9N3O2
molecular weight: 155.16
isoelectric point (pH): 7.47 (basic)
pKa values: 1.78, 5.97 (imidazole), 8.97
CAS Registry Number 71-00-1

See also: amino acids




