1f7c

From Proteopedia

(Difference between revisions)
Jump to: navigation, search
Current revision (07:11, 7 February 2024) (edit) (undo)
 
(15 intermediate revisions not shown.)
Line 1: Line 1:
-
[[Image:1f7c.jpg|left|200px]]<br /><applet load="1f7c" size="350" color="white" frame="true" align="right" spinBox="true"
 
-
caption="1f7c, resolution 2.4&Aring;" />
 
-
'''CRYSTAL STRUCTURE OF THE BH DOMAIN FROM GRAF, THE GTPASE REGULATOR ASSOCIATED WITH FOCAL ADHESION KINASE'''<br />
 
-
==Overview==
+
==CRYSTAL STRUCTURE OF THE BH DOMAIN FROM GRAF, THE GTPASE REGULATOR ASSOCIATED WITH FOCAL ADHESION KINASE==
-
Cellular signaling by small G-proteins is down-regulated by GTPase-activating proteins (GAPs), which increase the rate of GTP hydrolysis. The GTPase regulator associated with focal adhesion kinase (Graf) exhibits GAP activity toward the RhoA and Cdc42 GTPases, but is only weakly active toward the closely related Rac1. We determined the crystal structure of a 231-residue fragment of Graf (GrafGAP), a domain containing the GAP activity, at 2.4-A resolution. The structure clarifies the boundaries of the functional domain and yields insight to the mechanism of substrate recognition. Modeling its interaction with substrate suggested that a favorable interaction with Glu-95 of Cdc42 (Glu-97 of RhoA) would be absent with the corresponding Ala-95 of Rac1. Indeed, GrafGAP activity is diminished approximately 40-fold toward a Cdc42 E95A mutant, whereas a approximately 10-fold increase is observed for a Rac1 A95E mutant. The GrafGAP epitope that apparently interacts with Glu-95(Glu-97) contains Asn-225, which was recently found mutated in some myeloid leukemia patients. We conclude that position 95 of the GTPase is an important determinant for GrafGAP specificity in cellular function and tumor suppression.
+
<StructureSection load='1f7c' size='340' side='right'caption='[[1f7c]], [[Resolution|resolution]] 2.40&Aring;' scene=''>
-
 
+
== Structural highlights ==
-
==About this Structure==
+
<table><tr><td colspan='2'>[[1f7c]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Gallus_gallus Gallus gallus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1F7C OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1F7C FirstGlance]. <br>
-
1F7C is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/Gallus_gallus Gallus gallus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1F7C OCA].
+
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.4&#8491;</td></tr>
-
 
+
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1f7c FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1f7c OCA], [https://pdbe.org/1f7c PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1f7c RCSB], [https://www.ebi.ac.uk/pdbsum/1f7c PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1f7c ProSAT]</span></td></tr>
-
==Reference==
+
</table>
-
Structure of the BH domain from graf and its implications for Rho GTPase recognition., Longenecker KL, Zhang B, Derewenda U, Sheffield PJ, Dauter Z, Parsons JT, Zheng Y, Derewenda ZS, J Biol Chem. 2000 Dec 8;275(49):38605-10. PMID:[http://ispc.weizmann.ac.il//pmbin/getpm?pmid=10982819 10982819]
+
== Function ==
 +
[https://www.uniprot.org/uniprot/RHG26_CHICK RHG26_CHICK] GTPase-activating protein for RHOA and CDC42.<ref>PMID:8649427</ref> <ref>PMID:10982819</ref>
 +
== Evolutionary Conservation ==
 +
[[Image:Consurf_key_small.gif|200px|right]]
 +
Check<jmol>
 +
<jmolCheckbox>
 +
<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/f7/1f7c_consurf.spt"</scriptWhenChecked>
 +
<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
 +
<text>to colour the structure by Evolutionary Conservation</text>
 +
</jmolCheckbox>
 +
</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=1f7c ConSurf].
 +
<div style="clear:both"></div>
 +
== References ==
 +
<references/>
 +
__TOC__
 +
</StructureSection>
[[Category: Gallus gallus]]
[[Category: Gallus gallus]]
-
[[Category: Single protein]]
+
[[Category: Large Structures]]
-
[[Category: Derewenda, U.]]
+
[[Category: Derewenda U]]
-
[[Category: Derewenda, Z S.]]
+
[[Category: Derewenda ZS]]
-
[[Category: Longenecker, K L.]]
+
[[Category: Longenecker KL]]
-
[[Category: Sheffield, P J.]]
+
[[Category: Sheffield PJ]]
-
[[Category: Zheng, Y.]]
+
[[Category: Zheng Y]]
-
[[Category: bh domain]]
+
-
[[Category: gap]]
+
-
[[Category: gtpase activating protein]]
+
-
[[Category: rho gtpase regulator]]
+
-
 
+
-
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Feb 21 12:35:48 2008''
+

Current revision

CRYSTAL STRUCTURE OF THE BH DOMAIN FROM GRAF, THE GTPASE REGULATOR ASSOCIATED WITH FOCAL ADHESION KINASE

PDB ID 1f7c

Drag the structure with the mouse to rotate

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://proteopedia.org/wiki/index.php/1f7c"
Personal tools