Zadanie 6.2 – Matura Dwujęzyczna 2025 – Chemizm

Dział: Chemizm

Treść wprowadzająca

During translation, it is essential that a tRNA which binds to an mRNA codon specifying a particular amino acid carries that amino acid, and no other, to the ribosome. The correct matching up of the tRNA molecule and the amino acid is conditioned by a family of related enzymes called aminoacyl-tRNA synthetases. The active site of each type of aminoacyl-tRNA synthetase fits only specific combinations of amino acid and tRNA. There are 20 different aminoacyl-tRNA synthetases in humans. The figure below shows aspartyl-tRNA synthetase consisting of two identical subunits (green and blue) with two corresponding tRNA molecules attached (red).

Polecenie

Determine the highest level of protein structure for aspartyl-tRNA synthetase. In your answer, include one structural feature of the protein.

Materiał źródłowy

Zadanie 6.2 – Matura Dwujęzyczna 2025 – Chemizm — ilustracja 1

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