7ux0
From Proteopedia
(Difference between revisions)
(New page: '''Unreleased structure''' The entry 7ux0 is ON HOLD until Paper Publication Authors: Tang, S., Kim, P.S. Description: Human Sperm TMEM95 Ectodomain Category: Unreleased Structures...) |
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| - | '''Unreleased structure''' | ||
| - | + | ==Human Sperm TMEM95 Ectodomain== | |
| + | <StructureSection load='7ux0' size='340' side='right'caption='[[7ux0]], [[Resolution|resolution]] 1.49Å' scene=''> | ||
| + | == Structural highlights == | ||
| + | <table><tr><td colspan='2'>[[7ux0]] 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=7UX0 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=7UX0 FirstGlance]. <br> | ||
| + | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.49Å</td></tr> | ||
| + | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=BMA:BETA-D-MANNOSE'>BMA</scene>, <scene name='pdbligand=FUC:ALPHA-L-FUCOSE'>FUC</scene>, <scene name='pdbligand=NAG:N-ACETYL-D-GLUCOSAMINE'>NAG</scene>, <scene name='pdbligand=PGE:TRIETHYLENE+GLYCOL'>PGE</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=7ux0 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=7ux0 OCA], [https://pdbe.org/7ux0 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=7ux0 RCSB], [https://www.ebi.ac.uk/pdbsum/7ux0 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=7ux0 ProSAT]</span></td></tr> | ||
| + | </table> | ||
| + | == Function == | ||
| + | [https://www.uniprot.org/uniprot/TMM95_HUMAN TMM95_HUMAN] Sperm protein required for fusion of sperm with the egg membrane during fertilization.[UniProtKB:P0DJF3] | ||
| + | <div style="background-color:#fffaf0;"> | ||
| + | == Publication Abstract from PubMed == | ||
| + | Tmem95 encodes a sperm acrosomal membrane protein, whose knockout has a male-specific sterility phenotype in mice. Tmem95 knockout murine sperm can bind to, but do not fuse with, eggs. How TMEM95 plays a role in membrane fusion of sperm and eggs has remained elusive. Here, we utilize a sperm penetration assay as a model system to investigate the function of human TMEM95. We show that human TMEM95 binds to hamster egg membranes, providing evidence for a TMEM95 receptor on eggs. Using X-ray crystallography, we reveal an evolutionarily conserved, positively charged region of TMEM95 as a putative receptor-binding surface. Amino acid substitutions within this region of TMEM95 ablate egg-binding activity. We identify monoclonal antibodies against TMEM95 that reduce the number of human sperm fused with hamster eggs in sperm penetration assays. Strikingly, these antibodies do not block binding of sperm to eggs. Taken together, these results provide strong evidence for a specific, receptor-mediated interaction of sperm TMEM95 with eggs and suggest that this interaction may have a role in facilitating membrane fusion during fertilization. | ||
| - | + | Human sperm TMEM95 binds eggs and facilitates membrane fusion.,Tang S, Lu Y, Skinner WM, Sanyal M, Lishko PV, Ikawa M, Kim PS Proc Natl Acad Sci U S A. 2022 Oct 4;119(40):e2207805119. doi: , 10.1073/pnas.2207805119. Epub 2022 Sep 26. PMID:36161911<ref>PMID:36161911</ref> | |
| - | + | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |
| - | [[Category: | + | </div> |
| - | [[Category: Kim | + | <div class="pdbe-citations 7ux0" style="background-color:#fffaf0;"></div> |
| - | [[Category: Tang | + | == References == |
| + | <references/> | ||
| + | __TOC__ | ||
| + | </StructureSection> | ||
| + | [[Category: Homo sapiens]] | ||
| + | [[Category: Large Structures]] | ||
| + | [[Category: Kim PS]] | ||
| + | [[Category: Tang S]] | ||
Current revision
Human Sperm TMEM95 Ectodomain
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