What is coding DNA?

Coding DNA refers to a sequence of DNA that codes for proteins. The coding region houses the nucleotide sequence that codes for proteins. They are capable of transcribing, translating, and producing new proteins. The protein encoded sequences of coding DNA are transcribed to mRNA, which is then translated into amino acid sequences that synthesize the proteins. These proteins have functional, structural, and regulatory importance in the cell. Coding DNA generally accounts for only about 1% - 2% of an organism’s total DNA. The remaining 98% - 99% is made up of noncoding DNA.