Response regulator aspartate phosphatases

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These proteins contain the so-called tetratricopeptide repeats (TPRs) protein-protein interaction module. They control the phosphorelay for sporulation initiation by dephosphorylating Spo0F-P or they inhibit transcription factors by protein-protein interaction (without affecting phosphorylation). The activity of these proteins can be controlled by small peptides that are expressed as precursors, exported, and re-imported into the cell.

The RAP phosphatases are made up of the C-terminal tetratricopeptide repeat (TPR) domain that is connected by a flexible helix containing linker to the N-terminal 3-helix bundle. Upon binding of the regulating peptide, the 3-helix bundle and the linker helix undergo a conformational change to form a TPR-like fold that merges with the existing C-terminal TPR domain. PubMed

The RAP proteins of B. subtilis, their cognate peptides and target proteins

Related lists

Structural analysis

Vijay Parashar, Philip D Jeffrey, Matthew B Neiditch
Conformational change-induced repeat domain expansion regulates Rap phosphatase quorum-sensing signal receptors.
PLoS Biol: 2013, 11(3);e1001512
[PubMed:23526881] [] [DOI] (I p)


Ruth E Silversmith
Auxiliary phosphatases in two-component signal transduction.
Curr Opin Microbiol: 2010, 13(2);177-83
[PubMed:20133180] [] [DOI] (I p)

Daniel Schultz, Peter G Wolynes, Eshel Ben Jacob, José N Onuchic
Deciding fate in adverse times: sporulation and competence in Bacillus subtilis.
Proc Natl Acad Sci U S A: 2009, 106(50);21027-34
[PubMed:19995980] [] [DOI] (I p)

M Perego, J A Brannigan
Pentapeptide regulation of aspartyl-phosphate phosphatases.
Peptides: 2001, 22(10);1541-7
[PubMed:11587783] [] [DOI] (P p)

J Reizer, A Reizer, M Perego, M H Saier
Characterization of a family of bacterial response regulator aspartyl-phosphate (RAP) phosphatases.
Microb Comp Genomics: 1997, 2(2);103-11
[PubMed:9689219] [] [DOI] (P p)

M Perego, P Glaser, J A Hoch
Aspartyl-phosphate phosphatases deactivate the response regulator components of the sporulation signal transduction system in Bacillus subtilis.
Mol Microbiol: 1996, 19(6);1151-7
[PubMed:8730857] [] [DOI] (P p)