Send to

Choose Destination
Sci Signal. 2009 Feb 10;2(57):mr1. doi: 10.1126/scisignal.257mr1.

Emerging roles of NAD+ and its metabolites in cell signaling.

Author information

Institute of Immunology, Diagnostic Department, University Medical Center Hamburg-Eppendorf, Martinistrasse 52, Hamburg, Germany.


Nicotinamide adenine dinucleotide (NAD(+)) is the universal currency of energy metabolism and electron transfer. Recent studies indicate that apart from its role as a coenzyme, NAD(+) and its metabolites also function in cell signaling pathways; for example, they are substrates for nucleotide-metabolizing enzymes and ligands for extra- and intracellular receptors and ion channels. Moreover, the NAD(+) and NAD(+) phosphate metabolites adenosine 5'-diphosphoribose (ADP-ribose), cyclic ADP-ribose, and nicotinic acid adenine dinucleotide phosphate (NAADP) have emerged as key second messengers in Ca(2+) signaling. A symposium in Hamburg, Germany, brought together 120 researchers from various fields, who were all engaged in the molecular characterization of the key players of NAD(+) signaling (

[Indexed for MEDLINE]

Supplemental Content

Full text links

Icon for HighWire
Loading ...
Support Center