Dictionary » A » Arginine




An alpha-amino acid that is physiologically active in the L-form with molecular weight of 174.20, and functions by improving immune response, promoting wound healing by repairing tissues, releasing of growth hormones, promoting muscle growth, and improving cardiovascular function.


Arginine may be essential or nonessential amino acid. By essential it means that it is not synthesized readily in the body thus it has to be obtained through diet or supplementation. In mammals, arginine is essential for infants whereas it is nonessential in adults. Adult humans are capable of producing arginine through digestion or hydrolysis of proteins.

Arginine is found to speed up healing of tissues, especially bone, help decrease blood pressure, and act as precursor for the synthesis of nitric oxide. It has also been found to treat erectile dysfunction when taken in combination with proanthocyanidins.

Word origin: German Arginin, possibly from Greek arginoeis, bright

IUPAC name: 2-amino-5-(diaminomethylideneamino)pentanoic acid

Molecular formula: C6H14N4O2

Abbreviation: Arg

See also: amino acid

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Re: Any ideas for vaccine development or anti-viral drugs???

... outbreaks. There is currently no commercially available vaccine or efficacious therapeutic for any filovirus. In this study, PMO conjugated to arginine-rich cell-penetrating peptide (P-PMO) and nonconjugated PMO were assayed for the ability to inhibit EBOV infection in cell culture and in a ...

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by jonmoulton
Mon Sep 15, 2014 3:04 pm
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Topic: Any ideas for vaccine development or anti-viral drugs???
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Location of mutation in E. Coli biosynthetic auxotroph

I have isolated a mutant, streaked it onto pool plates and determined that it grows on minimal medium with the following additions: proline, arginine, ornithine, aspartic acid, proline, glutamic acid, inositol. Since the mutant was mutagenized according to 99.9% killing etc. it should only be ...

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by Jeaneai
Mon Nov 26, 2012 4:56 pm
Forum: Genetics
Topic: Location of mutation in E. Coli biosynthetic auxotroph
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Microbiology help in identifying Gram + rod for my unknown

... - oxidase= - catalase= + Gelatin liquefaction= - starch=- casein=+ urease= + Indole= - Dnase= + ornithine decarboxylase= - Lysine decarboxylase= + Arginine decarboxylase= - Any help would be great I have been racking my brain over the bacillus and nothing seems to fit Thank you Cara Capelouto

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by ccapelouto838
Thu May 03, 2012 5:21 am
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Help identifying unknown bacteria

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by anthony7
Sun Apr 01, 2012 9:21 pm
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Re: how to memorize the amino acid

... modifications etc. Thus it must have alpha-carbon (the one between NH2 and COOH), beta, gamma, delta and epsilon and then there is the other NH2. Arginine is a little tough, probably easiest way is to remember it is one carbon shoter than Lys and there is the guanidium group. If you look on the ...

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by JackBean
Thu Feb 09, 2012 9:52 am
Forum: General Discussion
Topic: how to memorize the amino acid
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