Deoxyadenosine (symbol dA or dAdo) is a deoxyribonucleoside. It is a derivative of the nucleoside adenosine, differing from the latter by the replacement of a hydroxyl group (-OH) by hydrogen (-H) at the 2' position of its ribose sugar moiety. Deoxyadenosine is the DNA nucleoside A, which pairs with deoxythymidine (T) in double-stranded DNA.
2'-Deoxyadenosine; α-Deoxyadenosine; dA
3D model (JSmol)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
In absence of adenosine deaminase (ADA) it accumulates in T lymphocytes and kills these cells resulting in a genetic disorder known as adenosine deaminase severe combined immunodeficiency disease (ADA-SCID).
- Griffiths, Anthony J. F.; Wessler, Susan R.; Carroll, Sean B.; Doebly, John (2012). Introduction to Genetic Analysis (10th ed.). New York: W . H. Freeman and Company. ISBN 1-4641-0661-4.