from The American Heritage® Dictionary of the English Language, 4th Edition
- n. An essential amino acid, C6H9N3O2, important for the growth and repair of tissues.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. An essential amino acid C6H9N3O2 found in most animal proteins; essential for tissue growth and repair.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. an essential amino acid found in proteins that is important for the growth and repair of tissue
By re-programming the code of a DNA molecule, e.g. changing the word CAC to GAC, it would be possible to obtain a protein in which the amino acid histidine is replaced by the amino acid aspartic acid.
The gene containing the bacteria's LOV domain also codes for a signaling protein called a histidine kinase.
Amino acids, such as histidine, produced by pathways related to nucleotide metabolism, but not found in spark-tube experiments, are in fact excellent candidates for inclusion because they interact well with the RNA that must be present.
P. falciparum cultures should be evaluated, and the putative implication of particular ROS determined using reversible inhibitors such as histidine, tryptophan, superoxide dismutase and/or catalase, to indicate which oxygen radicals, if any, are involved
A2 cows produce this protein with a proline at number 67, whereas A1 cows have a mutated proline amino acid, which converts it to histidine.
This idea is reemphasized here in the finding that amino acids with complex biosyntheses, like tryptophan, histidine, and arginine, were included in the presumably primordial stereochemical core of the genetic code.
The amino acids are arginine, histidine, isoleucine, lysine and methionine.
The main sources of histidine are all root and green leafy vegetables.
High levels of dietary fat have also been demonstrated to enhance UV-induced immunosuppression in experimental systems  and may be a factor in arctic populations as well as high histidine levels in some species of fish  and seal .
Dietary histidine increases mouse skin urocanic levels and enhances UV-B-induced immune suppression of contact hypersensitivity.
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