Miracles in the sieve. Meaning, origin, examples of the use of phraseological units

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Winged words, phraseological units. Meaning, history of origin, examples of use

Winged words, phraseological units

Directory / Winged words, phraseological units

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Miracles in the sieve

Proverbs and sayings

Phraseologism: Miracles are in the sieve.

Meaning: Something unexpected.

Origin: The expression originated from the proverb "Miracles: there are many holes in the sieve, but there is nowhere to get out."

Random phraseology:

Anika the warrior.

Meaning:

About a boastful person who boasts of his courage only when he is away from danger (iron.).

Origin:

The expression is associated with the folk saying Anika the warrior sits and howls, in which the name was not chosen by chance: Greek. a - "not", nike - "victory". Apparently, this is why the fairy tale "about the warrior Anika" was composed, where the hero boasts that he is not afraid of Death, and when she suddenly appears in front of him, he begins to cowardly and beg for forgiveness.

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Protein edits other proteins 14.01.2015

Proteins are high molecular weight organic substances that consist of alpha-amino acids. In living organisms, the amino acid composition of proteins is determined by the genetic code, but now scientists have discovered a completely different way to build a protein.

Proteins are assembled from amino acids in structural parts of cells called ribosomes, with the structure of each protein encoded in DNA. Genetic information is transferred from DNA to ribosomes using informational or messenger RNA transmitter molecules, and on the basis of the information transmitted by molecules, protein synthesis of the corresponding type is performed in ribosomes.

A team of American scientists from the University of Utah, California and Stanford Universities has discovered a fundamentally new way of building proteins in living cells. The yellow clot in the photo is the Rqc2 protein, which, as it turned out, is able to take on the functions of messenger RNA. It is associated with ribosomal RNA molecules (highlighted in blue and green) and instructs ribosomes (white spiral mass) to insert a random sequence of amino acids into the synthesized protein.

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Obviously, this behavior of the Rqc2 protein is part of a protective mechanism that protects cells from the appearance of defective proteins in them: random sequences of two amino acids act as weak links that contribute to the rapid destruction of the “defective” protein molecule. The researchers also suggest that this mechanism may play the role of a test of ribosome health.

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