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Secondary structure of proteins

Secondary structure of proteins

Polypeptide chains are composed of amino acids and can appear in alpha-helix or beta-sheet form.



proteīns, sekundārā struktūra, polipeptīds, alfa helix, beta lapa, aminoskābe, peptīds, peptīda saite, amīda saite, skrūves vītne, reizes, labais, ūdeņraža saite, ķīmija, Bioloģija, bioķīmija

Saistītie vienumi

Amino acids

Amino acids are the monomers of proteins.


Oxygen carrier protein in our red blood cells.


Enzymes are protein molecules catalysing biochemical reactions. Their activity can be regulated.

Spider silk, spider web

While the density of spider silk is less than that of nylon filaments, its tensile strength is greater than that of steel.


Fibroin is a fibrillar protein excreted by silkworms.

Peptide bond

Amino acids that make up proteins are bound by peptide bonds.

Structure of proteins

The structure and arrangement of polypeptide chains affects the spatial structure of proteins.

The human blood

Human blood consists of blood cells and plasma.


Viruses consist of protein and DNA or RNA; they reprogram infected cells to produce more viruses.

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