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511 a.k.a. Arginine is an α-amino acid. It was first isolated in 1886. The L-form is one of the 20 most common natural amino acids. At the level of molecular genetics, in the structure of the messenger ribonucleic acid mRNA, CGU, CGC, CGA, CGG, AGA, and AGG, are the triplets of nucleotide bases or codons that code for arginine during protein synthesis. In mammals, arginine is classified as a semiessential or conditionally essential amino acid, depending on the developmental stage and health status of the individual. Preterm infants are unable to synthesize or create arginine internally, making the amino acid nutritionally essential for them. Arginine was first isolated from a lupin seedling extract in 1886 by the Swiss chemist Ernst Schultze.

  • also known as ARG_G


"511" a.k.a. "Forbidden World" is a book by David Bischoff.

  • genre: Speculative fiction
  • copyright: 1978


  1. "511": New Order 511 is a live DVD released by New Order, in 2002 by Warner Music Vision. It features 16 tracks, recorded in 9 June 2002, at Finsbury Park, London. Five of the 16 tracks are Joy Division songs, and 11 of them are New Order songs, hence the title. Participating in the concert are Phil Cunningham, who provided guitar and keyboards, John Simm and backing vocalist Dawn Zee.
    • also known as New Order 511
    • genres: New Wave, Synthpop
    • released on (12 years ago)
  2. "511" is a musical album of Susan Wong.
    • released on (5 years ago)


511 is a Postal Code.


  1. 511 a.k.a. Pleurisy is an inflammation of the pleura, the lining surrounding the lungs. There are many possible causes of pleurisy but viral infections spreading from the lungs to pleural cavity are the most common. The inflamed pleural layers rub against each other every time the lungs expand to breathe in air. This can cause sharp pain when breathing, also called pleuritic chest pain.
    • also known as pleuritis, Fibrous pleuritis
  2. 511 a.k.a. Alcaligenes faecalis is a Gram-negative, rod-shaped, motile, non-nitrate reducing, oxidase positive, catalase positive, alpha hemolytic, and citrate positive obligate aerobe that is commonly found in the environment. It was originally named for its first discovery in feces, but was later found to be much more common in other places as well. Optimum growth occurs at about 37°C with no pigmentation. While opportunistic infections do occur, the bacterium is generally considered non-pathogenic. When an opportunistic infection does occur, it is usually observed in the form of a urinary tract infection. The bacterium degrades urea, creating ammonia which increases the pH of the environment. Although A. faecalis is considered to be alkaline tolerant, it maintains a neutral pH in its cytosol to prevent the damaging or denaturing of its charged species and macromolecules.

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