Skip to main content

R7BP/R9AP

  • Reference work entry
  • First Online:
  • 63 Accesses

Synonyms

R7 Binding Protein (R7BP); RGS9 Anchor Protein (R9AP)

Introduction and Historical Background

Regulator of G protein signaling (RGS) proteins constitute a diverse family with more than 30 members that contain the hallmark RGS domain. Most members serve as negative regulators of G protein signaling by catalyzing the GTP hydrolysis on Gα subunits leading to their inactivation (Ross and Wilkie 2000; Hollinger and Hepler 2002). Based on their structural organization and sequence homology RGS proteins are divided into five to six families (Ross and Wilkie 2000; Hollinger and Hepler 2002). The R7 RGS family (R7 RGS) contains multidomain proteins conserved from C. elegans to humans that, in mammals are represented by four members: RGS6, RGS7, RGS9, and RGS11. R7 RGS proteins play important roles in the nervous system by controlling neurotransmitter action at rhodopsin, μ-opioid, D2 dopamine, and GABA(B) receptors (Anderson et al. 2009a).

The unique feature of this group is that they...

This is a preview of subscription content, log in via an institution.

Buying options

Chapter
USD   29.95
Price excludes VAT (USA)
  • Available as PDF
  • Read on any device
  • Instant download
  • Own it forever
eBook
USD   4,499.99
Price excludes VAT (USA)
  • Available as EPUB and PDF
  • Read on any device
  • Instant download
  • Own it forever
Hardcover Book
USD   4,499.99
Price excludes VAT (USA)
  • Durable hardcover edition
  • Dispatched in 3 to 5 business days
  • Free shipping worldwide - see info

Tax calculation will be finalised at checkout

Purchases are for personal use only

Learn about institutional subscriptions

References

  • Anderson GR, Semenov A, Song JH, Martemyanov KA. The membrane anchor R7BP controls the proteolytic stability of the striatal specific RGS protein, RGS9-2. J Biol Chem. 2007a;282:4772–81.

    Article  PubMed  CAS  Google Scholar 

  • Anderson GR, Lujan R, Semenov A, Pravetoni M, Posokhova EN, Song JH, Uversky V, Chen CK, Wickman K, Martemyanov KA. Expression and localization of RGS9-2/Gbeta5/R7BP complex in vivo is set by dynamic control of its constitutive degradation by cellular cysteine proteases. J Neurosci. 2007b;27:14117–27.

    Article  PubMed  PubMed Central  CAS  Google Scholar 

  • Anderson GR, Posokhova E, Martemyanov KA. The R7 RGS protein family: multi-subunit regulators of neuronal G protein signaling. Cell Biochem Biophys. 2009a;54:33–46.

    Article  PubMed  PubMed Central  CAS  Google Scholar 

  • Anderson GR, Lujan R, Martemyanov KA. Changes in striatal signaling induce remodeling of RGS complexes containing Gbeta5 and R7BP subunits. Mol Cell Biol. 2009b;29:3033–44.

    Article  PubMed  PubMed Central  CAS  Google Scholar 

  • Anderson GR, Cao Y, Davidson S, Truong HV, Pravetoni M, Thomas MJ, Wickman K, Giesler Jr GJ, Martemyanov KA. R7BP complexes with RGS9-2 and RGS7 in the striatum differentially control motor learning and locomotor responses to cocaine. Neuropsychopharmacology. 2010;35:1040–50.

    Article  PubMed  CAS  Google Scholar 

  • Baker SA, Martemyanov KA, Shavkunov AS, Arshavsky VY. Kinetic mechanism of RGS9-1 potentiation by R9AP. Biochemistry. 2006;45:10690–7.

    Article  PubMed  CAS  Google Scholar 

  • Burchett SA. In through the out door: nuclear localization of the regulators of G protein signaling. J Neurochem. 2003;87:551–9.

    Article  PubMed  CAS  Google Scholar 

  • Cao Y, Song H, Okawa H, Sampath AP, Sokolov M, Martemyanov KA. Targeting of RGS7/Gbeta5 to the dendritic tips of ON-bipolar cells is independent of its association with membrane anchor R7BP. J Neurosci. 2008;28:10443–9.

    Article  PubMed  PubMed Central  CAS  Google Scholar 

  • Cao Y, Masuho I, Okawa H, Xie K, Asami J, Kammermeier PJ, Maddox DM, Furukawa T, Inoue T, Sampath AP, Martemyanov KA. Retina-specific GTPase accelerator RGS11/G beta 5S/R9AP is a constitutive heterotrimer selectively targeted to mGluR6 in ON-bipolar neurons. J Neurosci. 2009;29:9301–13.

    Article  PubMed  PubMed Central  CAS  Google Scholar 

  • Chen CK, Eversole-Cire P, Zhang H, Mancino V, Chen YJ, He W, Wensel TG, Simon MI. Instability of GGL domain-containing RGS proteins in mice lacking the G protein beta-subunit Gbeta5. Proc Natl Acad Sci USA. 2003;100:6604–9.

    Article  PubMed  PubMed Central  CAS  Google Scholar 

  • Drenan RM, Doupnik CA, Boyle MP, Muglia LJ, Huettner JE, Linder ME, Blumer KJ. Palmitoylation regulates plasma membrane-nuclear shuttling of R7BP, a novel membrane anchor for the RGS7 family. J Cell Biol. 2005;169:623–33.

    Article  PubMed  PubMed Central  CAS  Google Scholar 

  • Drenan RM, Doupnik CA, Jayaraman M, Buchwalter AL, Kaltenbronn KM, Huettner JE, Linder ME, Blumer KJ. R7BP augments the function of RGS7/Gbeta5 complexes by a plasma membrane-targeting mechanism. J Biol Chem. 2006;281:28222–31.

    Article  PubMed  CAS  Google Scholar 

  • Grabowska D, Jayaraman M, Kaltenbronn KM, Sandiford SL, Wang Q, Jenkins S, Slepak VZ, Smith Y, Blumer KJ. Postnatal induction and localization of R7BP, a membrane-anchoring protein for regulator of G protein signaling 7 family-Gbeta5 complexes in brain. Neuroscience. 2008;151:969–82.

    Article  PubMed  CAS  Google Scholar 

  • Hollinger S, Hepler JR. Cellular regulation of RGS proteins: modulators and integrators of G protein signaling. Pharmacol Rev. 2002;54:527–59.

    Article  PubMed  CAS  Google Scholar 

  • Hu G, Wensel TG. R9AP, a membrane anchor for the photoreceptor GTPase accelerating protein, RGS9-1. Proc Natl Acad Sci USA. 2002;99:9755–60.

    Article  PubMed  PubMed Central  CAS  Google Scholar 

  • Hu G, Zhang Z, Wensel TG. Activation of RGS9-1GTPase acceleration by its membrane anchor, R9AP. J Biol Chem. 2003;278:14550–4.

    Article  PubMed  CAS  Google Scholar 

  • Jayaraman M, Zhou H, Jia L, Cain MD, Blumer KJ. R9AP and R7BP: traffic cops for the RGS7 family in phototransduction and neuronal GPCR signaling. Trends Pharmacol Sci. 2009;30:17–24.

    Article  PubMed  CAS  Google Scholar 

  • Jeffrey BG, Morgans CW, Puthussery T, Wensel TG, Burke NS, Brown RL, Duvoisin RM. R9AP stabilizes RGS11-G beta5 and accelerates the early light response of ON-bipolar cells. Vis Neurosci. 2010;27:9–17.

    Article  PubMed  PubMed Central  Google Scholar 

  • Keresztes G, Mutai H, Hibino H, Hudspeth AJ, Heller S. Expression patterns of the RGS9-1 anchoring protein R9AP in the chicken and mouse suggest multiple roles in the nervous system. Mol Cell Neurosci. 2003;24:687–95.

    Article  PubMed  CAS  Google Scholar 

  • Keresztes G, Martemyanov KA, Krispel CM, Mutai H, Yoo PJ, Maison SF, Burns ME, Arshavsky VY, Heller S. Absence of the RGS9.Gbeta5 GTPase-activating complex in photoreceptors of the R9AP knockout mouse. J Biol Chem. 2004;279:1581–4.

    Article  PubMed  Google Scholar 

  • Lishko PV, Martemyanov KA, Hopp JA, Arshavsky VY. Specific binding of RGS9-Gbeta 5L to protein anchor in photoreceptor membranes greatly enhances its catalytic activity. J Biol Chem. 2002;277:24376–81.

    Article  PubMed  CAS  Google Scholar 

  • Martemyanov KA, Lishko PV, Calero N, Keresztes G, Sokolov M, Strissel KJ, Leskov IB, Hopp JA, Kolesnikov AV, Chen CK, Lem J, Heller S, Burns ME, Arshavsky VY. The DEP domain determines subcellular targeting of the GTPase activating protein RGS9 in vivo. J Neurosci. 2003;23:10175–81.

    Article  PubMed  PubMed Central  CAS  Google Scholar 

  • Martemyanov KA, Yoo PJ, Skiba NP, Arshavsky VY. R7BP, a novel neuronal protein interacting with RGS proteins of the R7 family. J Biol Chem. 2005;280:5133–6.

    Article  PubMed  CAS  Google Scholar 

  • Masuho I, Celver J, Kovoor A, Martemyanov KA. Membrane anchor R9AP potentiates GTPase-accelerating protein activity of RGS11 x Gbeta5 complex and accelerates inactivation of the mGluR6-G(o) signaling. J Biol Chem. 2010;285(7):4781.

    Article  PubMed  CAS  Google Scholar 

  • Nishiguchi KM, Sandberg MA, Kooijman AC, Martemyanov KA, Pott JW, Hagstrom SA, Arshavsky VY, Berson EL, Dryja TP. Defects in RGS9 or its anchor protein R9AP in patients with slow photoreceptor deactivation. Nature. 2004;427:75–8.

    Article  PubMed  CAS  Google Scholar 

  • Panicker LM, Zhang JH, Posokhova E, Gastinger MJ, Martemyanov KA, Simonds WF. Nuclear localization of the G protein beta 5/R7-regulator of G protein signaling protein complex is dependent on R7 binding protein. J Neurochem. 2010;113:1101–12.

    PubMed  PubMed Central  CAS  Google Scholar 

  • Posokhova E, Uversky V, Martemyanov KA. Proteomic identification of Hsc70 as a mediator of RGS9-2 degradation by in vivo interactome analysis. J Proteome Res. 2010;9:1510–21.

    Article  PubMed  PubMed Central  CAS  Google Scholar 

  • Ross EM, Wilkie TM. GTPase-activating proteins for heterotrimeric G proteins: regulators of G protein signaling (RGS) and RGS-like proteins. Annu Rev Biochem. 2000;69:795–827.

    Article  PubMed  CAS  Google Scholar 

  • Slepak VZ. Chapter 6 structure, function, and localization of Gbeta5-RGS complexes. Prog Mol Biol Transl Sci. 2009;86C:157–203.

    Article  CAS  Google Scholar 

  • Sondek J, Siderovski DP. Ggamma-like (GGL) domains: new frontiers in G-protein signaling and beta-propeller scaffolding. Biochem Pharmacol. 2001;61:1329–37.

    Article  PubMed  CAS  Google Scholar 

  • Song JH, Waataja JJ, Martemyanov KA. Subcellular targeting of RGS9-2 is controlled by multiple molecular determinants on its membrane anchor, R7BP. J Biol Chem. 2006;281:15361–9.

    Article  PubMed  CAS  Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Kirill A. Martemyanov .

Editor information

Editors and Affiliations

Rights and permissions

Reprints and permissions

Copyright information

© 2018 Springer International Publishing AG

About this entry

Check for updates. Verify currency and authenticity via CrossMark

Cite this entry

Martemyanov, K.A., Parameswaran, P. (2018). R7BP/R9AP. In: Choi, S. (eds) Encyclopedia of Signaling Molecules. Springer, Cham. https://doi.org/10.1007/978-3-319-67199-4_259

Download citation

Publish with us

Policies and ethics