Field of connection to the DNA

A field of connection to the DNA (or DBD of English DNA-binding domain ) is a proteinic reason which is able to bind double DNA or simple bit with an affinity for a nucleotidic Séquence specific, or an affinity relating to the DNA.

The fields of connection to the DNA present in many Protéine S are implied in the regulation of the form of genes (like the factors of transcription). There exist many types of DBD characterizing of the families of proteins.