7lxe

From Proteopedia

(Difference between revisions)

Current revision

ENAH EVH1 domain bound to peptide from ABI1

Structural highlights

7lxe 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.
Method:	X-ray diffraction, Resolution 1.88Å
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Disease

ABI1_HUMAN A chromosomal aberration involving ABI1 is a cause of acute leukemias. Translocation t(10;11)(p11.2;q23) with KMT2A/MLL1. ABI1 isoform 2 was found to be present in acute leukemia KMT2A/MLL1-ABI1 fusion transcript.^[1]

Function

ABI1_HUMAN May act in negative regulation of cell growth and transformation by interacting with nonreceptor tyrosine kinases ABL1 and/or ABL2. May play a role in regulation of EGF-induced Erk pathway activation. Involved in cytoskeletal reorganization and EGFR signaling. Together with EPS8 participates in transduction of signals from Ras to Rac. In vitro, a trimeric complex of ABI1, EPS8 and SOS1 exhibits Rac specific guanine nucleotide exchange factor (GEF) activity and ABI1 seems to act as an adapter in the complex. Regulates ABL1/c-Abl-mediated phosphorylation of ENAH. Recruits WASF1 to lamellipodia and there seems to regulate WASF1 protein level. In brain, seems to regulate the dendritic outgrowth and branching as well as to determine the shape and number of synaptic contacts of developing neurons.^[2] ^[3] ENAH_HUMAN Ena/VASP proteins are actin-associated proteins involved in a range of processes dependent on cytoskeleton remodeling and cell polarity such as axon guidance and lamellipodial and filopodial dynamics in migrating cells. ENAH induces the formation of F-actin rich outgrowths in fibroblasts. Acts synergistically with BAIAP2-alpha and downstream of NTN1 to promote filipodia formation (By similarity).^[4] ^[5]

Publication Abstract from PubMed

The human proteome is replete with short linear motifs (SLiMs) of four to six residues that are critical for protein-protein interactions, yet the importance of the sequence surrounding such motifs is underexplored. We devised a proteomic screen to examine the influence of SLiM sequence context on protein-protein interactions. Focusing on the EVH1 domain of human ENAH, an actin regulator that is highly expressed in invasive cancers, we screened 36-residue proteome-derived peptides and discovered new interaction partners of ENAH and diverse mechanisms by which context influences binding. A pocket on the ENAH EVH1 domain that has diverged from other Ena/VASP paralogs recognizes extended SLiMs and favors motif-flanking proline residues. Many high-affinity ENAH binders that contain two proline-rich SLiMs use a noncanonical site on the EVH1 domain for binding and display a thermodynamic signature consistent with the two-motif chain engaging a single domain. We also found that photoreceptor cilium actin regulator (PCARE) uses an extended 23-residue region to obtain a higher affinity than any known ENAH EVH1-binding motif. Our screen provides a way to uncover the effects of proteomic context on motif-mediated binding, revealing diverse mechanisms of control over EVH1 interactions and establishing that SLiMs can't be fully understood outside of their native context.

Native proline-rich motifs exploit sequence context to target actin-remodeling Ena/VASP protein ENAH.,Hwang T, Parker SS, Hill SM, Grant RA, Ilunga MW, Sivaraman V, Mouneimne G, Keating AE Elife. 2022 Jan 25;11. pii: 70680. doi: 10.7554/eLife.70680. PMID:35076015^[6]

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

References

↑ Taki T, Shibuya N, Taniwaki M, Hanada R, Morishita K, Bessho F, Yanagisawa M, Hayashi Y. ABI-1, a human homolog to mouse Abl-interactor 1, fuses the MLL gene in acute myeloid leukemia with t(10;11)(p11.2;q23). Blood. 1998 Aug 15;92(4):1125-30 PMID:9694699
↑ Fan PD, Goff SP. Abl interactor 1 binds to sos and inhibits epidermal growth factor v-Abl-induced activation of extracellular signal-regulated kinases. Mol Cell Biol. 2000 Oct;20(20):7591-601. PMID:11003655 doi:10.1128/MCB.20.20.7591-7601.2000
↑ Xiong X, Cui P, Hossain S, Xu R, Warner B, Guo X, An X, Debnath AK, Cowburn D, Kotula L. Allosteric inhibition of the nonMyristoylated c-Abl tyrosine kinase by phosphopeptides derived from Abi1/Hssh3bp1. Biochim Biophys Acta. 2008 May;1783(5):737-47. doi: 10.1016/j.bbamcr.2008.01.028., Epub 2008 Feb 15. PMID:18328268 doi:10.1016/j.bbamcr.2008.01.028
↑ Krugmann S, Jordens I, Gevaert K, Driessens M, Vandekerckhove J, Hall A. Cdc42 induces filopodia by promoting the formation of an IRSp53:Mena complex. Curr Biol. 2001 Oct 30;11(21):1645-55. PMID:11696321
↑ Boeda B, Briggs DC, Higgins T, Garvalov BK, Fadden AJ, McDonald NQ, Way M. Tes, a specific Mena interacting partner, breaks the rules for EVH1 binding. Mol Cell. 2007 Dec 28;28(6):1071-82. PMID:18158903 doi:10.1016/j.molcel.2007.10.033
↑ Hwang T, Parker SS, Hill SM, Grant RA, Ilunga MW, Sivaraman V, Mouneimne G, Keating AE. Native proline-rich motifs exploit sequence context to target actin-remodeling Ena/VASP protein ENAH. Elife. 2022 Jan 25;11. pii: 70680. doi: 10.7554/eLife.70680. PMID:35076015 doi:http://dx.doi.org/10.7554/eLife.70680

1 Structural highlights
2 Disease
3 Function
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/7lxe"

Categories: Homo sapiens | Large Structures | Grant RA | Hwang TH | Keating AE

@@ Line 1: / Line 1: @@
 ==ENAH EVH1 domain bound to peptide from ABI1==
-<StructureSection load='7lxe' size='340' side='right'caption='[[7lxe]]' scene=''>
+<StructureSection load='7lxe' size='340' side='right'caption='[[7lxe]], [[Resolution|resolution]] 1.88&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=7LXE OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=7LXE FirstGlance]. <br>
+<table><tr><td colspan='2'>[[7lxe]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=7LXE OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=7LXE FirstGlance]. <br>
-</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=7lxe FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=7lxe OCA], [https://pdbe.org/7lxe PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=7lxe RCSB], [https://www.ebi.ac.uk/pdbsum/7lxe PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=7lxe ProSAT]</span></td></tr>
+</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.88&#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=7lxe FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=7lxe OCA], [https://pdbe.org/7lxe PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=7lxe RCSB], [https://www.ebi.ac.uk/pdbsum/7lxe PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=7lxe ProSAT]</span></td></tr>
 </table>
+== Disease ==
+[https://www.uniprot.org/uniprot/ABI1_HUMAN ABI1_HUMAN] A chromosomal aberration involving ABI1 is a cause of acute leukemias. Translocation t(10;11)(p11.2;q23) with KMT2A/MLL1. ABI1 isoform 2 was found to be present in acute leukemia KMT2A/MLL1-ABI1 fusion transcript.<ref>PMID:9694699</ref>
+== Function ==
+[https://www.uniprot.org/uniprot/ABI1_HUMAN ABI1_HUMAN] May act in negative regulation of cell growth and transformation by interacting with nonreceptor tyrosine kinases ABL1 and/or ABL2. May play a role in regulation of EGF-induced Erk pathway activation. Involved in cytoskeletal reorganization and EGFR signaling. Together with EPS8 participates in transduction of signals from Ras to Rac. In vitro, a trimeric complex of ABI1, EPS8 and SOS1 exhibits Rac specific guanine nucleotide exchange factor (GEF) activity and ABI1 seems to act as an adapter in the complex. Regulates ABL1/c-Abl-mediated phosphorylation of ENAH. Recruits WASF1 to lamellipodia and there seems to regulate WASF1 protein level. In brain, seems to regulate the dendritic outgrowth and branching as well as to determine the shape and number of synaptic contacts of developing neurons.<ref>PMID:11003655</ref> <ref>PMID:18328268</ref> [https://www.uniprot.org/uniprot/ENAH_HUMAN ENAH_HUMAN] Ena/VASP proteins are actin-associated proteins involved in a range of processes dependent on cytoskeleton remodeling and cell polarity such as axon guidance and lamellipodial and filopodial dynamics in migrating cells. ENAH induces the formation of F-actin rich outgrowths in fibroblasts. Acts synergistically with BAIAP2-alpha and downstream of NTN1 to promote filipodia formation (By similarity).<ref>PMID:11696321</ref> <ref>PMID:18158903</ref>
+<div style="background-color:#fffaf0;">
+== Publication Abstract from PubMed ==
+The human proteome is replete with short linear motifs (SLiMs) of four to six residues that are critical for protein-protein interactions, yet the importance of the sequence surrounding such motifs is underexplored. We devised a proteomic screen to examine the influence of SLiM sequence context on protein-protein interactions. Focusing on the EVH1 domain of human ENAH, an actin regulator that is highly expressed in invasive cancers, we screened 36-residue proteome-derived peptides and discovered new interaction partners of ENAH and diverse mechanisms by which context influences binding. A pocket on the ENAH EVH1 domain that has diverged from other Ena/VASP paralogs recognizes extended SLiMs and favors motif-flanking proline residues. Many high-affinity ENAH binders that contain two proline-rich SLiMs use a noncanonical site on the EVH1 domain for binding and display a thermodynamic signature consistent with the two-motif chain engaging a single domain. We also found that photoreceptor cilium actin regulator (PCARE) uses an extended 23-residue region to obtain a higher affinity than any known ENAH EVH1-binding motif. Our screen provides a way to uncover the effects of proteomic context on motif-mediated binding, revealing diverse mechanisms of control over EVH1 interactions and establishing that SLiMs can't be fully understood outside of their native context.
+Native proline-rich motifs exploit sequence context to target actin-remodeling Ena/VASP protein ENAH.,Hwang T, Parker SS, Hill SM, Grant RA, Ilunga MW, Sivaraman V, Mouneimne G, Keating AE Elife. 2022 Jan 25;11. pii: 70680. doi: 10.7554/eLife.70680. PMID:35076015<ref>PMID:35076015</ref>
+From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
+</div>
+<div class="pdbe-citations 7lxe" style="background-color:#fffaf0;"></div>
+== References ==
+<references/>
 __TOC__
 </StructureSection>
+[[Category: Homo sapiens]]
 [[Category: Large Structures]]
 [[Category: Grant RA]]
 [[Category: Hwang TH]]
 [[Category: Keating AE]]

7lxe

From Proteopedia

Current revision

ENAH EVH1 domain bound to peptide from ABI1

Structural highlights

Disease

Function

Publication Abstract from PubMed

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

Views

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