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2zn8

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Revision as of 07:09, 24 December 2014

Crystal structure of Zn2+-bound form of ALG-2

Structural highlights

2zn8 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.
Ligands:	,
Related:	2zn9, 2znd, 2zne
Gene:	PDCD6, ALG2 (Homo sapiens)
Resources:	FirstGlance, OCA, RCSB, PDBsum

Function

[PDCD6_HUMAN] Calcium-binding protein required for T-cell receptor-, Fas-, and glucocorticoid-induced cell death. May mediate Ca(2+)-regulated signals along the death pathway (By similarity). Calcium-dependent adapter necessary for the association between PDCD6IP and TSG101. Interaction with DAPK1 can accelerate apoptotic cell death by increasing caspase-3 activity.^[1] ^[2]

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

ALG-2 belongs to the penta-EF-hand (PEF) protein family and interacts with various intracellular proteins, such as Alix and TSG101, that are involved in endosomal sorting and HIV budding. Through X-ray crystallography, we solved the structures of Ca(2+)-free and -bound forms of N-terminally truncated human ALG-2 (des3-20ALG-2), Zn(2+)-bound form of full-length ALG-2, and the structure of the complex between des3-23ALG-2 and the peptide corresponding to Alix799-814 in Zn(2+)-bound form. Binding of Ca(2+) to EF3 enables the side chain of Arg125, present in the loop connecting EF3 and EF4, to move enough to make a primary hydrophobic pocket accessible to the critical PPYP motif, which partially overlaps with the GPP motif for the binding of Cep55 (centrosome protein 55 kDa). Based on these results, together with the results of in vitro binding assay with mutant ALG-2 and Alix proteins, we propose a Ca(2+)/EF3-driven arginine switch mechanism for ALG-2 binding to Alix.

Structural basis for Ca2+ -dependent formation of ALG-2/Alix peptide complex: Ca2+/EF3-driven arginine switch mechanism.,Suzuki H, Kawasaki M, Inuzuka T, Okumura M, Kakiuchi T, Shibata H, Wakatsuki S, Maki M Structure. 2008 Oct 8;16(10):1562-73. PMID:18940611^[3]

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

References

↑ Lee JH, Rho SB, Chun T. Programmed cell death 6 (PDCD6) protein interacts with death-associated protein kinase 1 (DAPk1): additive effect on apoptosis via caspase-3 dependent pathway. Biotechnol Lett. 2005 Jul;27(14):1011-5. PMID:16132846 doi:http://dx.doi.org/10.1007/s10529-005-7869-x
↑ Okumura M, Ichioka F, Kobayashi R, Suzuki H, Yoshida H, Shibata H, Maki M. Penta-EF-hand protein ALG-2 functions as a Ca2+-dependent adaptor that bridges Alix and TSG101. Biochem Biophys Res Commun. 2009 Aug 14;386(1):237-41. doi:, 10.1016/j.bbrc.2009.06.015. Epub 2009 Jun 9. PMID:19520058 doi:http://dx.doi.org/10.1016/j.bbrc.2009.06.015
↑ Suzuki H, Kawasaki M, Inuzuka T, Okumura M, Kakiuchi T, Shibata H, Wakatsuki S, Maki M. Structural basis for Ca2+ -dependent formation of ALG-2/Alix peptide complex: Ca2+/EF3-driven arginine switch mechanism. Structure. 2008 Oct 8;16(10):1562-73. PMID:18940611 doi:http://dx.doi.org/10.1016/j.str.2008.07.012

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

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/2zn8"

@@ Line 3: / Line 3: @@
 == Structural highlights ==
 <table><tr><td colspan='2'>[[2zn8]] 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=2ZN8 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2ZN8 FirstGlance]. <br>
-</td></tr><tr><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=NA:SODIUM+ION'>NA</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene><br>
+</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=NA:SODIUM+ION'>NA</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr>
-<tr><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[2zn9|2zn9]], [[2znd|2znd]], [[2zne|2zne]]</td></tr>
+<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[2zn9|2zn9]], [[2znd|2znd]], [[2zne|2zne]]</td></tr>
-<tr><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">PDCD6, ALG2 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 Homo sapiens])</td></tr>
+<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">PDCD6, ALG2 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 Homo sapiens])</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=2zn8 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2zn8 OCA], [http://www.rcsb.org/pdb/explore.do?structureId=2zn8 RCSB], [http://www.ebi.ac.uk/pdbsum/2zn8 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=2zn8 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2zn8 OCA], [http://www.rcsb.org/pdb/explore.do?structureId=2zn8 RCSB], [http://www.ebi.ac.uk/pdbsum/2zn8 PDBsum]</span></td></tr>
-<table>
+</table>
+== Function ==
+[[http://www.uniprot.org/uniprot/PDCD6_HUMAN PDCD6_HUMAN]] Calcium-binding protein required for T-cell receptor-, Fas-, and glucocorticoid-induced cell death. May mediate Ca(2+)-regulated signals along the death pathway (By similarity). Calcium-dependent adapter necessary for the association between PDCD6IP and TSG101. Interaction with DAPK1 can accelerate apoptotic cell death by increasing caspase-3 activity.<ref>PMID:16132846</ref> <ref>PMID:19520058</ref>
 == Evolutionary Conservation ==
 [[Image:Consurf_key_small.gif|200px|right]]
@@ Line 34: / Line 36: @@
 </StructureSection>
 [[Category: Homo sapiens]]
-[[Category: Inuzuka, T.]]
+[[Category: Inuzuka, T]]
-[[Category: Kakiuchi, T.]]
+[[Category: Kakiuchi, T]]
-[[Category: Kawasaki, M.]]
+[[Category: Kawasaki, M]]
-[[Category: Maki, M.]]
+[[Category: Maki, M]]
-[[Category: Shibata, H.]]
+[[Category: Shibata, H]]
-[[Category: Suzuki, H.]]
+[[Category: Suzuki, H]]
-[[Category: Wakatsuki, S.]]
+[[Category: Wakatsuki, S]]
 [[Category: Apoptosis]]
 [[Category: Calcium binding protein]]

2zn8

From Proteopedia

Revision as of 07:09, 24 December 2014

Crystal structure of Zn2+-bound form of ALG-2

Structural highlights

Function

Evolutionary Conservation

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

Views

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