histidine

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histidine

 [his´tē-dēn]
a naturally occurring amino acid, one of the essential amino acids, necessary for optimal growth of infants; its decarboxylation results in formation of histamine.

his·ti·dine (H, His),

(his'ti-dēn),
α-Amino-1H-4; propionic acid; the l-isomer is a basic amino acid found in most proteins. It is a nutritionally essential amino acid in mammals.

histidine

(hĭs′tĭ-dēn′, -dĭn)
n.
An essential amino acid, C6H9N3O2, important for tissue growth and repair.

his·ti·dine

(His, H) (his'ti-dēn)
The l-isomer is a basic amino acid found in most proteins.

histidine

An essential amino acid and precursor of HISTAMINE.
Histidineclick for a larger image
Fig. 191 Histidine . Molecular structure.

histidine (H, His)

one of the 20 AMINO ACIDS common in proteins. It carries an extra basic group making it alkaline and is soluble in water. See Fig. 191 . The ISOELECTRIC POINT of histidine is 7.6.

his·ti·dine

(His, H) (his'ti-dēn)
The l-isomer is a basic amino acid found in most proteins.