DNA polymerase

A DNA polymerase is an enzyme which makes DNA molecules from its nucleotide building blocks. DNA polymerases are essential for DNA replication. They usually work in pairs as they copy one double-stranded DNA molecule into two double-stranded DNAs. In DNA replication DNA polymerase "reads" a piece of DNA that's already there and uses it to make a new piece that is exactly the same as the old piece.The primary role of DNA polymerases is to accurately and efficiently replicate the genome in order to ensure the maintenance of the genetic information and its faithful transmission through generations.

DNA polymerases also play key roles in other processes within cells, including DNA repair, genetic recombination, reverse transcription, and antibody production. DNA polymerases are widely used in molecular biology laboratories, notably for the polymerase chain reaction (PCR), DNA sequencing, and molecular cloning.

DNA polymerase can only connect deoxyribonucleotides to a 3'-OH group that is already there, so DNA is always made in the 5'–3' direction.


Other Languages
bosanski: DNK polimeraza
čeština: DNA polymeráza
Ελληνικά: DNA πολυμεράση
español: ADN polimerasa
français: ADN polymérase
한국어: DNA 중합효소
hrvatski: DNK polimeraza
Bahasa Indonesia: DNA polimerase
lietuvių: DNR polimerazė
македонски: ДНК полимераза
Nederlands: DNA-polymerase
norsk nynorsk: DNA-polymerase
português: DNA polimerase
română: ADN polimerază
slovenčina: DNA polymeráza
slovenščina: DNK-polimeraza
српски / srpski: ДНК полимераза
srpskohrvatski / српскохрватски: DNK polimeraza
svenska: DNA-polymeras
Türkçe: DNA polimeraz
українська: ДНК-полімераза
Tiếng Việt: DNA polymerase
中文: DNA聚合酶