3j82

From Proteopedia

(Difference between revisions)

Current revision

Electron cryo-microscopy of DNGR-1 in complex with F-actin

3j82, resolution 7.70Å

Structural highlights

3j82 is a 4 chain structure with sequence from Homo sapiens and Mus musculus. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:	Electron Microscopy, Resolution 7.7Å
Ligands:
Experimental data:	Check to display Experimental Data
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

CLC9A_MOUSE Functions as an endocytic receptor on a small subset of myeloid cells specialized for the uptake and processing of material from dead cells. Recognizes filamentous form of actin in association with particular actin-binding domains of cytoskeletal proteins, including spectrin, exposed when cell membranes are damaged, and mediate the cross-presentation of dead-cell associated antigens in a Syk-dependent manner.^[1] ^[2] ^[3] ^[4]

Publication Abstract from PubMed

DNGR-1 is a C-type lectin receptor that binds F-actin exposed by dying cells and facilitates cross-presentation of dead cell-associated antigens by dendritic cells. Here we present the structure of DNGR-1 bound to F-actin at 7.7 A resolution. Unusually for F-actin binding proteins, the DNGR-1 ligand binding domain contacts three actin subunits helically arranged in the actin filament, bridging over two protofilaments, as well as two neighboring actin subunits along one protofilament. Mutation of residues predicted to mediate ligand binding led to loss of DNGR-1-dependent cross-presentation of dead cell-associated antigens, formally demonstrating that the latter depends on F-actin recognition. Notably, DNGR-1 has relatively modest affinity for F-actin but multivalent interactions allow a marked increase in binding strength. Our findings shed light on modes of actin binding by cellular proteins and reveal how extracellular detection of cytoskeletal components by dedicated receptors allows immune monitoring of loss of cellular integrity.

Structure of the Complex of F-Actin and DNGR-1, a C-Type Lectin Receptor Involved in Dendritic Cell Cross-Presentation of Dead Cell-Associated Antigens.,Hanc P, Fujii T, Iborra S, Yamada Y, Huotari J, Schulz O, Ahrens S, Kjaer S, Way M, Sancho D, Namba K, Reis e Sousa C Immunity. 2015 May 19;42(5):839-849. doi: 10.1016/j.immuni.2015.04.009. Epub 2015, May 12. PMID:25979418^[5]

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

References

↑ Huysamen C, Willment JA, Dennehy KM, Brown GD. CLEC9A is a novel activation C-type lectin-like receptor expressed on BDCA3+ dendritic cells and a subset of monocytes. J Biol Chem. 2008 Jun 13;283(24):16693-701. Epub 2008 Apr 11. PMID:18408006 doi:http://dx.doi.org/M709923200
↑ Sancho D, Mourao-Sa D, Joffre OP, Schulz O, Rogers NC, Pennington DJ, Carlyle JR, Reis e Sousa C. Tumor therapy in mice via antigen targeting to a novel, DC-restricted C-type lectin. J Clin Invest. 2008 Jun;118(6):2098-110. doi: 10.1172/JCI34584. PMID:18497879 doi:10.1172/JCI34584
↑ Sancho D, Joffre OP, Keller AM, Rogers NC, Martinez D, Hernanz-Falcon P, Rosewell I, Reis e Sousa C. Identification of a dendritic cell receptor that couples sensing of necrosis to immunity. Nature. 2009 Apr 16;458(7240):899-903. doi: 10.1038/nature07750. PMID:19219027 doi:10.1038/nature07750
↑ Zhang JG, Czabotar PE, Policheni AN, Caminschi I, San Wan S, Kitsoulis S, Tullett KM, Robin AY, Brammananth R, van Delft MF, Lu J, O'Reilly LA, Josefsson EC, Kile BT, Chin WJ, Mintern JD, Olshina MA, Wong W, Baum J, Wright MD, Huang DC, Mohandas N, Coppel RL, Colman PM, Nicola NA, Shortman K, Lahoud MH. The Dendritic Cell Receptor Clec9A Binds Damaged Cells via Exposed Actin Filaments. Immunity. 2012 Apr 20;36(4):646-57. Epub 2012 Apr 5. PMID:22483802 doi:10.1016/j.immuni.2012.03.009
↑ Hanc P, Fujii T, Iborra S, Yamada Y, Huotari J, Schulz O, Ahrens S, Kjaer S, Way M, Sancho D, Namba K, Reis e Sousa C. Structure of the Complex of F-Actin and DNGR-1, a C-Type Lectin Receptor Involved in Dendritic Cell Cross-Presentation of Dead Cell-Associated Antigens. Immunity. 2015 May 19;42(5):839-849. doi: 10.1016/j.immuni.2015.04.009. Epub 2015, May 12. PMID:25979418 doi:http://dx.doi.org/10.1016/j.immuni.2015.04.009

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

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/3j82"

@@ Line 3: / Line 3: @@
 <SX load='3j82' size='340' side='right' viewer='molstar' caption='[[3j82]], [[Resolution|resolution]] 7.70&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[3j82]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens] and [https://en.wikipedia.org/wiki/Lk3_transgenic_mice Lk3 transgenic mice]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3J82 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3J82 FirstGlance]. <br>
+<table><tr><td colspan='2'>[[3j82]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens] and [https://en.wikipedia.org/wiki/Mus_musculus Mus musculus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3J82 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3J82 FirstGlance]. <br>
-</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=ADP:ADENOSINE-5-DIPHOSPHATE'>ADP</scene>, <scene name='pdbligand=CA:CALCIUM+ION'>CA</scene></td></tr>
+</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">Electron Microscopy, [[Resolution|Resolution]] 7.7&#8491;</td></tr>
-<tr id='NonStdRes'><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=HIC:4-METHYL-HISTIDINE'>HIC</scene></td></tr>
+<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=ADP:ADENOSINE-5-DIPHOSPHATE'>ADP</scene>, <scene name='pdbligand=CA:CALCIUM+ION'>CA</scene>, <scene name='pdbligand=HIC:4-METHYL-HISTIDINE'>HIC</scene></td></tr>
-<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">Clec9a, Dngr-1 ([https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=10090 LK3 transgenic mice])</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=3j82 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3j82 OCA], [https://pdbe.org/3j82 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3j82 RCSB], [https://www.ebi.ac.uk/pdbsum/3j82 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3j82 ProSAT]</span></td></tr>
 </table>
-== Disease ==
-[[https://www.uniprot.org/uniprot/ACTB_HUMAN ACTB_HUMAN]] Defects in ACTB are a cause of dystonia juvenile-onset (DYTJ) [MIM:[https://omim.org/entry/607371 607371]]. DYTJ is a form of dystonia with juvenile onset. Dystonia is defined by the presence of sustained involuntary muscle contraction, often leading to abnormal postures. DYTJ patients manifest progressive, generalized, dopa-unresponsive dystonia, developmental malformations and sensory hearing loss.<ref>PMID:16685646</ref>   Defects in ACTB are the cause of Baraitser-Winter syndrome type 1 (BRWS1) [MIM:[https://omim.org/entry/243310 243310]]. A rare developmental disorder characterized by the combination of congenital ptosis, high-arched eyebrows, hypertelorism, ocular colobomata, and a brain malformation consisting of anterior-predominant lissencephaly. Other typical features include postnatal short stature and microcephaly, intellectual disability, seizures, and hearing loss.<ref>PMID:22366783</ref>
 == Function ==
-[[https://www.uniprot.org/uniprot/CLC9A_MOUSE CLC9A_MOUSE]] Functions as an endocytic receptor on a small subset of myeloid cells specialized for the uptake and processing of material from dead cells. Recognizes filamentous form of actin in association with particular actin-binding domains of cytoskeletal proteins, including spectrin, exposed when cell membranes are damaged, and mediate the cross-presentation of dead-cell associated antigens in a Syk-dependent manner.<ref>PMID:18408006</ref> <ref>PMID:18497879</ref> <ref>PMID:19219027</ref> <ref>PMID:22483802</ref>  [[https://www.uniprot.org/uniprot/ACTB_HUMAN ACTB_HUMAN]] Actins are highly conserved proteins that are involved in various types of cell motility and are ubiquitously expressed in all eukaryotic cells.
+[https://www.uniprot.org/uniprot/CLC9A_MOUSE CLC9A_MOUSE] Functions as an endocytic receptor on a small subset of myeloid cells specialized for the uptake and processing of material from dead cells. Recognizes filamentous form of actin in association with particular actin-binding domains of cytoskeletal proteins, including spectrin, exposed when cell membranes are damaged, and mediate the cross-presentation of dead-cell associated antigens in a Syk-dependent manner.<ref>PMID:18408006</ref> <ref>PMID:18497879</ref> <ref>PMID:19219027</ref> <ref>PMID:22483802</ref>
 <div style="background-color:#fffaf0;">
 == Publication Abstract from PubMed ==
@@ Line 31: / Line 28: @@
 [[Category: Homo sapiens]]
 [[Category: Large Structures]]
-[[Category: Lk3 transgenic mice]]
+[[Category: Mus musculus]]
-[[Category: Ahrens, S]]
+[[Category: Ahrens S]]
-[[Category: Fujii, T]]
+[[Category: Fujii T]]
-[[Category: Hanc, P]]
+[[Category: Hanc P]]
-[[Category: Huotari, J]]
+[[Category: Huotari J]]
-[[Category: Kjaer, S]]
+[[Category: Kjaer S]]
-[[Category: Namba, K]]
+[[Category: Namba K]]
-[[Category: Schulz, O]]
+[[Category: Reis e Sousa C]]
-[[Category: Sousa, C Reis e]]
+[[Category: Schulz O]]
-[[Category: Way, M]]
+[[Category: Way M]]
-[[Category: Yamada, Y]]
+[[Category: Yamada Y]]
-[[Category: Actin]]
-[[Category: Dngr-1]]
-[[Category: Membrane protein-adp-binding protein complex]]
-[[Category: Recognition of damage-associated molecular pattern]]

3j82

From Proteopedia

Current revision

Electron cryo-microscopy of DNGR-1 in complex with F-actin

Structural highlights

Function

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

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