1iap

From Proteopedia

(Difference between revisions)

Revision as of 02:24, 25 December 2014

CRYSTAL STRUCTURE OF P115RHOGEF RGRGS DOMAIN

Structural highlights

1iap is a 1 chain structure with sequence from Homo sapiens. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Related:	1agr, 1fqj, 1cmz, 1dk8
Resources:	FirstGlance, OCA, RCSB, PDBsum

Function

[ARHG1_HUMAN] Seems to play a role in the regulation of RhoA GTPase by guanine nucleotide-binding alpha-12 (GNA12) and alpha-13 (GNA13) subunits. Acts as GTPase-activating protein (GAP) for GNA12 and GNA13, and as guanine nucleotide exchange factor (GEF) for RhoA GTPase. Activated G alpha 13/GNA13 stimulates the RhoGEF activity through interaction with the RGS-like domain. This GEF activity is inhibited by binding to activated GNA12. Mediates angiotensin-2-induced RhoA activation.^[1] ^[2] ^[3] ^[4]

Evolutionary Conservation

Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.

Publication Abstract from PubMed

p115RhoGEF, a guanine nucleotide exchange factor for Rho GTPase, is also a GTPase activating protein (GAP) for G(12) and G(13) heterotrimeric G alpha subunits. Near its N-terminus, p115RhoGEF contains a domain (rgRGS) with remote sequence identity to RGS (regulators of G protein signaling) domains. The rgRGS domain is necessary but not sufficient for the GAP activity of p115RhoGEF. The 1.9 A resolution crystal structure of the rgRGS domain shows structural similarity to RGS domains but possesses a C-terminal extension that folds into a layer of helices that pack against the hydrophobic core of the domain. Mutagenesis experiments show that rgRGS may form interactions with G alpha(13) that are analogous to those in complexes of RGS proteins with their G alpha substrates.

Structure of the rgRGS domain of p115RhoGEF.,Chen Z, Wells CD, Sternweis PC, Sprang SR Nat Struct Biol. 2001 Sep;8(9):805-9. PMID:11524686^[5]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

References

↑ Hart MJ, Sharma S, elMasry N, Qiu RG, McCabe P, Polakis P, Bollag G. Identification of a novel guanine nucleotide exchange factor for the Rho GTPase. J Biol Chem. 1996 Oct 11;271(41):25452-8. PMID:8810315
↑ Kozasa T, Jiang X, Hart MJ, Sternweis PM, Singer WD, Gilman AG, Bollag G, Sternweis PC. p115 RhoGEF, a GTPase activating protein for Galpha12 and Galpha13. Science. 1998 Jun 26;280(5372):2109-11. PMID:9641915
↑ Hart MJ, Jiang X, Kozasa T, Roscoe W, Singer WD, Gilman AG, Sternweis PC, Bollag G. Direct stimulation of the guanine nucleotide exchange activity of p115 RhoGEF by Galpha13. Science. 1998 Jun 26;280(5372):2112-4. PMID:9641916
↑ Guilluy C, Bregeon J, Toumaniantz G, Rolli-Derkinderen M, Retailleau K, Loufrani L, Henrion D, Scalbert E, Bril A, Torres RM, Offermanns S, Pacaud P, Loirand G. The Rho exchange factor Arhgef1 mediates the effects of angiotensin II on vascular tone and blood pressure. Nat Med. 2010 Feb;16(2):183-90. doi: 10.1038/nm.2079. Epub 2010 Jan 24. PMID:20098430 doi:10.1038/nm.2079
↑ Chen Z, Wells CD, Sternweis PC, Sprang SR. Structure of the rgRGS domain of p115RhoGEF. Nat Struct Biol. 2001 Sep;8(9):805-9. PMID:11524686 doi:10.1038/nsb0901-805

1 Structural highlights
2 Function
3 Evolutionary Conservation
4 Publication Abstract from PubMed
5 References

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/1iap"

@@ Line 3: / Line 3: @@
 == Structural highlights ==
 <table><tr><td colspan='2'>[[1iap]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1IAP OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1IAP FirstGlance]. <br>
-</td></tr><tr><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1agr|1agr]], [[1fqj|1fqj]], [[1cmz|1cmz]], [[1dk8|1dk8]]</td></tr>
+</td></tr><tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1agr|1agr]], [[1fqj|1fqj]], [[1cmz|1cmz]], [[1dk8|1dk8]]</td></tr>
-<tr><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1iap FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1iap OCA], [http://www.rcsb.org/pdb/explore.do?structureId=1iap RCSB], [http://www.ebi.ac.uk/pdbsum/1iap PDBsum]</span></td></tr>
+<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1iap FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1iap OCA], [http://www.rcsb.org/pdb/explore.do?structureId=1iap RCSB], [http://www.ebi.ac.uk/pdbsum/1iap PDBsum]</span></td></tr>
-<table>
+</table>
+== Function ==
+[[http://www.uniprot.org/uniprot/ARHG1_HUMAN ARHG1_HUMAN]] Seems to play a role in the regulation of RhoA GTPase by guanine nucleotide-binding alpha-12 (GNA12) and alpha-13 (GNA13) subunits. Acts as GTPase-activating protein (GAP) for GNA12 and GNA13, and as guanine nucleotide exchange factor (GEF) for RhoA GTPase. Activated G alpha 13/GNA13 stimulates the RhoGEF activity through interaction with the RGS-like domain. This GEF activity is inhibited by binding to activated GNA12. Mediates angiotensin-2-induced RhoA activation.<ref>PMID:8810315</ref> <ref>PMID:9641915</ref> <ref>PMID:9641916</ref> <ref>PMID:20098430</ref>
 == Evolutionary Conservation ==
 [[Image:Consurf_key_small.gif|200px|right]]
@@ Line 29: / Line 31: @@
 </StructureSection>
 [[Category: Homo sapiens]]
-[[Category: Chen, Z.]]
+[[Category: Chen, Z]]
-[[Category: Sprang, S R.]]
+[[Category: Sprang, S R]]
 [[Category: P115]]
 [[Category: Rgrg]]

1iap

From Proteopedia

Revision as of 02:24, 25 December 2014

CRYSTAL STRUCTURE OF P115RHOGEF RGRGS DOMAIN

Structural highlights

Function

Evolutionary Conservation

Publication Abstract from PubMed

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

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