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| | <StructureSection load='1od9' size='340' side='right'caption='[[1od9]], [[Resolution|resolution]] 2.10Å' scene=''> | | <StructureSection load='1od9' size='340' side='right'caption='[[1od9]], [[Resolution|resolution]] 2.10Å' scene=''> |
| | == Structural highlights == | | == Structural highlights == |
| - | <table><tr><td colspan='2'>[[1od9]] is a 1 chain structure with sequence from [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=1OD9 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1OD9 FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[1od9]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Mus_musculus Mus musculus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1OD9 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1OD9 FirstGlance]. <br> |
| - | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=BND:ME-A-N-BENZOYL-AMINO-9-DEOXY-NEU5AC'>BND</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene></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]] 2.1Å</td></tr> |
| - | <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat"><div style='overflow: auto; max-height: 3em;'>[[1od7|1od7]], [[1oda|1oda]], [[1qfo|1qfo]], [[1qfp|1qfp]]</div></td></tr> | + | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=BND:ME-A-N-BENZOYL-AMINO-9-DEOXY-NEU5AC'>BND</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene></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=1od9 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1od9 OCA], [https://pdbe.org/1od9 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1od9 RCSB], [https://www.ebi.ac.uk/pdbsum/1od9 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1od9 ProSAT]</span></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=1od9 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1od9 OCA], [https://pdbe.org/1od9 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1od9 RCSB], [https://www.ebi.ac.uk/pdbsum/1od9 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1od9 ProSAT]</span></td></tr> |
| | </table> | | </table> |
| | == Function == | | == Function == |
| - | [[https://www.uniprot.org/uniprot/SN_MOUSE SN_MOUSE]] Acts as an endocytic receptor mediating clathrin dependent endocytosis. Macrophage-restricted adhesion molecule that mediates sialic-acid dependent binding to lymphocytes, including granulocytes, monocytes, natural killer cells, B-cells and CD8 T-cells (By similarity). Preferentially binds to alpha-2,3-linked sialic acid. Binds to SPN/CD43 on T-cells. May play a role in hematopoiesis. May act as a counter-receptor for CLEC10A in lymph node.<ref>PMID:15364954</ref>
| + | [https://www.uniprot.org/uniprot/SN_MOUSE SN_MOUSE] Acts as an endocytic receptor mediating clathrin dependent endocytosis. Macrophage-restricted adhesion molecule that mediates sialic-acid dependent binding to lymphocytes, including granulocytes, monocytes, natural killer cells, B-cells and CD8 T-cells (By similarity). Preferentially binds to alpha-2,3-linked sialic acid. Binds to SPN/CD43 on T-cells. May play a role in hematopoiesis. May act as a counter-receptor for CLEC10A in lymph node.<ref>PMID:15364954</ref> |
| | == Evolutionary Conservation == | | == Evolutionary Conservation == |
| | [[Image:Consurf_key_small.gif|200px|right]] | | [[Image:Consurf_key_small.gif|200px|right]] |
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| | </StructureSection> | | </StructureSection> |
| | [[Category: Large Structures]] | | [[Category: Large Structures]] |
| - | [[Category: Lk3 transgenic mice]] | + | [[Category: Mus musculus]] |
| - | [[Category: Brossmer, R]] | + | [[Category: Brossmer R]] |
| - | [[Category: Crocker, P R]] | + | [[Category: Crocker PR]] |
| - | [[Category: Jones, E Y]] | + | [[Category: Jones EY]] |
| - | [[Category: Kelm, S]] | + | [[Category: Kelm S]] |
| - | [[Category: Maenaka, K]] | + | [[Category: Maenaka K]] |
| - | [[Category: Maenaka, T]] | + | [[Category: Maenaka T]] |
| - | [[Category: Zaccai, N R]] | + | [[Category: Zaccai NR]] |
| - | [[Category: Carbohydrate binding]]
| + | |
| - | [[Category: Immune system]]
| + | |
| - | [[Category: Immunoglobulin superfamily]]
| + | |
| - | [[Category: Inhibitor design]]
| + | |
| - | [[Category: Lectin-immune system complex]]
| + | |
| - | [[Category: Lectin/immune system]]
| + | |
| - | [[Category: Siglec]]
| + | |
| Structural highlights
Function
SN_MOUSE Acts as an endocytic receptor mediating clathrin dependent endocytosis. Macrophage-restricted adhesion molecule that mediates sialic-acid dependent binding to lymphocytes, including granulocytes, monocytes, natural killer cells, B-cells and CD8 T-cells (By similarity). Preferentially binds to alpha-2,3-linked sialic acid. Binds to SPN/CD43 on T-cells. May play a role in hematopoiesis. May act as a counter-receptor for CLEC10A in lymph node.[1]
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
The Siglec family of receptors mediates cell surface interactions through recognition of sialylated glycoconjugates. The crystal structure of the N-terminal immunoglobulin-like domain of the Siglec sialoadhesin (SnD1) in complex with 2,3-sialyllactose has informed the design of sialic acid analogs (sialosides) that bind Siglecs with significantly enhanced affinities and specificities. Binding assays against sialoadhesin (Sn; Siglec-1), CD22 (Siglec-2), and MAG (Siglec-4) show a 10- to 300-fold reduction in IC(50) values (relative to methyl-alpha-Neu5Ac) for three sialosides bearing aromatic group modifications of the glycerol side chain: Me-alpha-9-N-benzoyl-amino-9-deoxy-Neu5Ac (BENZ), Me-alpha-9-N-(naphthyl-2-carbonyl)-amino-9-deoxy-Neu5Ac (NAP), and Me-alpha-9-N-(biphenyl-4-carbonyl)-amino-9-deoxy-Neu5Ac (BIP). Crystal structures of these sialosides in complex with SnD1 suggest explanations for the differences in specificity and affinity, providing further ideas for compound design of physiological and potentially therapeutic relevance.
Structure-guided design of sialic acid-based Siglec inhibitors and crystallographic analysis in complex with sialoadhesin.,Zaccai NR, Maenaka K, Maenaka T, Crocker PR, Brossmer R, Kelm S, Jones EY Structure. 2003 May;11(5):557-67. PMID:12737821[2]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
References
- ↑ Kumamoto Y, Higashi N, Denda-Nagai K, Tsuiji M, Sato K, Crocker PR, Irimura T. Identification of sialoadhesin as a dominant lymph node counter-receptor for mouse macrophage galactose-type C-type lectin 1. J Biol Chem. 2004 Nov 19;279(47):49274-80. Epub 2004 Sep 13. PMID:15364954 doi:http://dx.doi.org/10.1074/jbc.M409300200
- ↑ Zaccai NR, Maenaka K, Maenaka T, Crocker PR, Brossmer R, Kelm S, Jones EY. Structure-guided design of sialic acid-based Siglec inhibitors and crystallographic analysis in complex with sialoadhesin. Structure. 2003 May;11(5):557-67. PMID:12737821
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