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Molecular lesion

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Title: Molecular lesion  
Author: World Heritage Encyclopedia
Language: English
Subject: Pyrimidine dimer, Today's featured article/September 15, 2004, DNA repair, Cell damage, Eukaryotic transcription
Collection: Molecular Biology
Publisher: World Heritage Encyclopedia

Molecular lesion

A molecular lesion or point lesion is damage to the structure of a biological molecule such as DNA, enzymes, or proteins that results in reduction or absence of normal function or, in rare cases, the gain of a new function. Lesions in DNA consist of breaks and other changes in the chemical structure of the helix (see types of DNA lesions) while lesions in proteins consist of both broken bonds and improper folding of the amino acid chain.

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