Metabolism of signalling nucleotides

Parent categories	2. Metabolism 2.5. Nucleotide metabolism
Neighbouring categories	2.5.1. Utilization of nucleotides 2.5.2. Biosynthesis/ acquisition of nucleotides 2.5.3. Metabolism of signalling nucleotides 2.5.4. Nucleotide metabolism/ other
Related categories	none
Overview on the categories (Excel file) All genes and their categories (Excel file)

Genes in this functional category

ppGpp synthesis and degradation

• RelA
• YjbM
• YwaC

c-di-AMP synthesis

• DisA
• CdaA
• CdaS

Control of c-di-AMP synthesis

• CdaR controls CdaA activity PubMed
• RadA controls DisA activity PubMed

Note that c-di-AMP is essential for the growth of B. subtilis, but accumulation of the nucleotide is detrimental as well PubMed

c-di-AMP degradation

• GdpP

c-di-GMP degradation (presence of an EAL domain)

• YkoW
• YkuI
• YuxH

c-di-GMP synthesis/ based on similarity (presence of a GGDEF domain)

• GdpP
• YdaK
• YhcK
• YkoW
• YtrP (this enzyme may be inactive due to the lack of important residues)

Targets of signalling nucleotides

• ppGpp targets
  • DnaG
  • GdpP
  • Gmk
  • GuaB
  • HprT

• c-di-GMP targets
  • YpfA (contains a PilZ domain)

• potential c-di-AMP targets
  • KtrA (binds c-di-AMP in vivo) PubMed

Important reviews

Rebecca M Corrigan, Angelika Gründling
Cyclic di-AMP: another second messenger enters the fray.
Nat Rev Microbiol: 2013, 11(8);513-24
[PubMed:23812326] [WorldCat.org] [DOI] (I p)

Dimpy Kalia, Gökçe Merey, Shizuka Nakayama, Yue Zheng, Jie Zhou, Yiling Luo, Min Guo, Benjamin T Roembke, Herman O Sintim
Nucleotide, c-di-GMP, c-di-AMP, cGMP, cAMP, (p)ppGpp signaling in bacteria and implications in pathogenesis.
Chem Soc Rev: 2013, 42(1);305-41
[PubMed:23023210] [WorldCat.org] [DOI] (I p)

Mark Gomelsky
cAMP, c-di-GMP, c-di-AMP and now cGMP: bacteria use them all!
Mol Microbiol: 2011, 79(3);562-5
[PubMed:21255104] [WorldCat.org] [DOI] (I p)

Tilman Schirmer, Urs Jenal
Structural and mechanistic determinants of c-di-GMP signalling.
Nat Rev Microbiol: 2009, 7(10);724-35
[PubMed:19756011] [WorldCat.org] [DOI] (I p)

Regine Hengge
Principles of c-di-GMP signalling in bacteria.
Nat Rev Microbiol: 2009, 7(4);263-73
[PubMed:19287449] [WorldCat.org] [DOI] (I p)

Ute Römling
Great times for small molecules: c-di-AMP, a second messenger candidate in Bacteria and Archaea.
Sci Signal: 2008, 1(33);pe39
[PubMed:18714086] [WorldCat.org] [DOI] (I e)

Peggy A Cotter, Scott Stibitz
c-di-GMP-mediated regulation of virulence and biofilm formation.
Curr Opin Microbiol: 2007, 10(1);17-23
[PubMed:17208514] [WorldCat.org] [DOI] (P p)

Ute Römling, Mark Gomelsky, Michael Y Galperin
C-di-GMP: the dawning of a novel bacterial signalling system.
Mol Microbiol: 2005, 57(3);629-39
[PubMed:16045609] [WorldCat.org] [DOI] (P p)