This old version of Proteopedia is provided for student assignments while the new version is undergoing repairs. Content and edits done in this old version of Proteopedia after March 1, 2026 will eventually be lost when it is retired in about June of 2026.

Apply for new accounts at the new Proteopedia. Your logins will work in both the old and new versions.

5iic

From Proteopedia

(Difference between revisions)

Jump to: navigation, search

Revision as of 07:25, 29 November 2017

Crystal structure of red abalone VERL repeat 3 at 2.9 A resolution

Structural highlights

5iic is a 2 chain structure with sequence from California red abalone. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:	,
Related:	5ii5, 5ii4, 3d4c, 3d4g, 3ef7, 3nk3, 3nk4, 5ii6, 5iia, 5iib
Gene:	VERL (California red abalone), malE (California red abalone)
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[MALE_ECOLI] Involved in the high-affinity maltose membrane transport system MalEFGK. Initial receptor for the active transport of and chemotaxis toward maltooligosaccharides.

Publication Abstract from PubMed

Recognition between sperm and the egg surface marks the beginning of life in all sexually reproducing organisms. This fundamental biological event depends on the species-specific interaction between rapidly evolving counterpart molecules on the gametes. We report biochemical, crystallographic, and mutational studies of domain repeats 1-3 of invertebrate egg coat protein VERL and their interaction with cognate sperm protein lysin. VERL repeats fold like the functionally essential N-terminal repeat of mammalian sperm receptor ZP2, whose structure is also described here. Whereas sequence-divergent repeat 1 does not bind lysin, repeat 3 binds it non-species specifically via a high-affinity, largely hydrophobic interface. Due to its intermediate binding affinity, repeat 2 selectively interacts with lysin from the same species. Exposure of a highly positively charged surface of VERL-bound lysin suggests that complex formation both disrupts the organization of egg coat filaments and triggers their electrostatic repulsion, thereby opening a hole for sperm penetration and fusion.

Structural Basis of Egg Coat-Sperm Recognition at Fertilization.,Raj I, Sadat Al Hosseini H, Dioguardi E, Nishimura K, Han L, Villa A, de Sanctis D, Jovine L Cell. 2017 Jun 15;169(7):1315-1326.e17. doi: 10.1016/j.cell.2017.05.033. PMID:28622512^[1]

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

References

↑ Raj I, Sadat Al Hosseini H, Dioguardi E, Nishimura K, Han L, Villa A, de Sanctis D, Jovine L. Structural Basis of Egg Coat-Sperm Recognition at Fertilization. Cell. 2017 Jun 15;169(7):1315-1326.e17. doi: 10.1016/j.cell.2017.05.033. PMID:28622512 doi:http://dx.doi.org/10.1016/j.cell.2017.05.033

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

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/5iic"

@@ Line 3: / Line 3: @@
 <StructureSection load='5iic' size='340' side='right' caption='[[5iic]], [[Resolution|resolution]] 2.90&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[5iic]] is a 2 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5IIC OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=5IIC FirstGlance]. <br>
+<table><tr><td colspan='2'>[[5iic]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/California_red_abalone California red abalone]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5IIC OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=5IIC FirstGlance]. <br>
 </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=MAL:MALTOSE'>MAL</scene>, <scene name='pdbligand=NAG:N-ACETYL-D-GLUCOSAMINE'>NAG</scene></td></tr>
-<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[3d4c|3d4c]], [[3d4g|3d4g]], [[3ef7|3ef7]], [[3nk3|3nk3]], [[3nk4|3nk4]]</td></tr>
+<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[5ii5|5ii5]], [[5ii4|5ii4]], [[3d4c|3d4c]], [[3d4g|3d4g]], [[3ef7|3ef7]], [[3nk3|3nk3]], [[3nk4|3nk4]], [[5ii6|5ii6]], [[5iia|5iia]], [[5iib|5iib]]</td></tr>
+<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">VERL ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=6454 California red abalone]), malE ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=6454 California red abalone])</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=5iic FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5iic OCA], [http://pdbe.org/5iic PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=5iic RCSB], [http://www.ebi.ac.uk/pdbsum/5iic PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=5iic ProSAT]</span></td></tr>
 </table>
@@ Line 23: / Line 24: @@
 __TOC__
 </StructureSection>
+[[Category: California red abalone]]
 [[Category: Al-Hosseini, H Sadat]]
 [[Category: Jovine, L]]

5iic

From Proteopedia

Revision as of 07:25, 29 November 2017

Crystal structure of red abalone VERL repeat 3 at 2.9 A resolution

Structural highlights

Function

Publication Abstract from PubMed

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

Views

Personal tools

Navigation

Search

Toolbox