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.

5al7

From Proteopedia

(Difference between revisions)

Jump to: navigation, search

Revision as of 06:12, 31 May 2023

N-terminal fragment of Drosophila melanogaster Sas-6 (F143D), dimerised via the coiled-coil domain.

Structural highlights

5al7 is a 2 chain structure with sequence from Drosophila melanogaster. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

SAS6_DROME Central scaffolding component of the centrioles ensuring their 9-fold symmetry. Required for centrosome biogenesis and duplication.^[1] ^[2]

Publication Abstract from PubMed

Sas-6 and Ana2/STIL proteins are required for centriole duplication and the homo-oligomerisation properties of Sas-6 help establish the nine-fold symmetry of the central cartwheel that initiates centriole assembly. Ana2/STIL proteins are poorly conserved, but they all contain a predicted Central Coiled-Coil Domain (CCCD). Here we show that the Drosophila Ana2 CCCD forms a tetramer, and we solve its structure to 0.8 A, revealing that it adopts an unusual parallel-coil topology. We also solve the structure of the Drosophila Sas-6 N-terminal domain to 2.9 A revealing that it forms higher-order oligomers through canonical interactions. Point mutations that perturb Sas-6 or Ana2 homo-oligomerisation in vitro strongly perturb centriole assembly in vivo. Thus, efficient centriole duplication in flies requires the homo-oligomerisation of both Sas-6 and Ana2, and the Ana2 CCCD tetramer structure provides important information on how these proteins might cooperate to form a cartwheel structure.

The homo-oligomerisation of both Sas-6 and Ana2 is required for efficient centriole assembly in flies.,Cottee MA, Muschalik N, Johnson S, Leveson J, Raff JW, Lea SM Elife. 2015 May 23;4. doi: 10.7554/eLife.07236. PMID:26002084^[3]

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

References

↑ Goshima G, Wollman R, Goodwin SS, Zhang N, Scholey JM, Vale RD, Stuurman N. Genes required for mitotic spindle assembly in Drosophila S2 cells. Science. 2007 Apr 20;316(5823):417-21. Epub 2007 Apr 5. PMID:17412918 doi:http://dx.doi.org/1141314
↑ Rodrigues-Martins A, Riparbelli M, Callaini G, Glover DM, Bettencourt-Dias M. Revisiting the role of the mother centriole in centriole biogenesis. Science. 2007 May 18;316(5827):1046-50. Epub 2007 Apr 26. PMID:17463247 doi:http://dx.doi.org/10.1126/science.1142950
↑ Cottee MA, Muschalik N, Johnson S, Leveson J, Raff JW, Lea SM. The homo-oligomerisation of both Sas-6 and Ana2 is required for efficient centriole assembly in flies. Elife. 2015 May 23;4. doi: 10.7554/eLife.07236. PMID:26002084 doi:http://dx.doi.org/10.7554/eLife.07236

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/5al7"

Categories: Drosophila melanogaster | Large Structures | Cottee MA | Johnson S | Lea SM

@@ Line 1: / Line 1: @@
 ==N-terminal fragment of Drosophila melanogaster Sas-6 (F143D), dimerised via the coiled-coil domain.==
-<StructureSection load='5al7' size='340' side='right' caption='[[5al7]], [[Resolution|resolution]] 2.92&Aring;' scene=''>
+<StructureSection load='5al7' size='340' side='right'caption='[[5al7]], [[Resolution|resolution]] 2.92&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[5al7]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Drome Drome]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5AL7 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=5AL7 FirstGlance]. <br>
+<table><tr><td colspan='2'>[[5al7]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Drosophila_melanogaster Drosophila melanogaster]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5AL7 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=5AL7 FirstGlance]. <br>
-</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=NO3:NITRATE+ION'>NO3</scene></td></tr>
+</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=NO3:NITRATE+ION'>NO3</scene></td></tr>
-<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[5al6|5al6]]</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=5al7 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5al7 OCA], [https://pdbe.org/5al7 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=5al7 RCSB], [https://www.ebi.ac.uk/pdbsum/5al7 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=5al7 ProSAT]</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=5al7 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5al7 OCA], [http://pdbe.org/5al7 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=5al7 RCSB], [http://www.ebi.ac.uk/pdbsum/5al7 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=5al7 ProSAT]</span></td></tr>
 </table>
 == Function ==
-[[http://www.uniprot.org/uniprot/SAS6_DROME SAS6_DROME]] Central scaffolding component of the centrioles ensuring their 9-fold symmetry. Required for centrosome biogenesis and duplication.<ref>PMID:17412918</ref> <ref>PMID:17463247</ref>
+[https://www.uniprot.org/uniprot/SAS6_DROME SAS6_DROME] Central scaffolding component of the centrioles ensuring their 9-fold symmetry. Required for centrosome biogenesis and duplication.<ref>PMID:17412918</ref> <ref>PMID:17463247</ref>
 <div style="background-color:#fffaf0;">
 == Publication Abstract from PubMed ==
@@ Line 23: / Line 22: @@
 __TOC__
 </StructureSection>
-[[Category: Drome]]
+[[Category: Drosophila melanogaster]]
-[[Category: Cottee, M A]]
+[[Category: Large Structures]]
-[[Category: Johnson, S]]
+[[Category: Cottee MA]]
-[[Category: Lea, S M]]
+[[Category: Johnson S]]
-[[Category: Cartwheel]]
+[[Category: Lea SM]]
-[[Category: Centriole]]
-[[Category: Structural protein]]

5al7

From Proteopedia

Revision as of 06:12, 31 May 2023

N-terminal fragment of Drosophila melanogaster Sas-6 (F143D), dimerised via the coiled-coil domain.

Structural highlights

Function

Publication Abstract from PubMed

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

Views

Personal tools

Navigation

Search

Toolbox