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.

2k6s

From Proteopedia

(Difference between revisions)

Jump to: navigation, search

Current revision

Structure of Rab11-FIP2 C-terminal Coiled-coil Domain

Structural highlights

2k6s is a 2 chain structure with sequence from Homo sapiens. Full experimental information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:	Solution NMR
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

RFIP2_HUMAN A Rab11 effector protein acting in the regulation of the transport of vesicles from the endosomal recycling compartment (ERC) to the plasma membrane. Also involved in receptor-mediated endocytosis and membrane trafficking of recycling endosomes, probably originating from clathrin-coated vesicles. Binds preferentially to phosphatidylinositol 3,4,5-trisphosphate (PtdInsP3) and phosphatidic acid (PA). Required in a complex with MYO5B and RAB11 for the transport of NPC1L1 to the plasma membrane. Also acts as a regulator of cell polarity.^[1] ^[2] ^[3] ^[4]

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

Rab11 plays a central role in plasma membrane recycling which returns cellular receptors for reuse at the cell surface. A recently identified family of Rab11 interacting proteins (FIP) includes FIP2. The C-terminal region of FIP2 is essential for colocalization with Rab11 on early endosomes and for enabling formation of higher-order oligomers. Rab11 binding and oligomerization of FIP2 are separable. Here we have determined the three-dimensional structure of the 40-residue coiled-coil oligomerization domain of FIP2 in the absence of Rab11 using NMR methods. The N-terminal half showed strong NOE cross-peaks and well-dispersed NMR resonances, whereas the C-terminal half had fewer NOE cross-peaks and less chemical shift dispersion. The 10 C-terminal residues were mostly disordered. The final structures of the dimer had favorable Ramachandran angles and a root-mean-square deviation of 0.59 +/- 0.13 A over superimposed backbone residues. The structure allows a comparison to a structure of FIP2 in complex with Rab11 that was determined crystallographically. In complex with Rab11, the C-terminal residues are not disordered but have a helical structure that predicts residual dipolar coupling constants that are incompatible with those measured on the unbound FIP2. In both structures, a histidine residue is found at the normally hydrophobic position of the heptad repeat of the coiled coil, and here we show its ionization destabilizes the coiled-coil structure. Together, these data allow us to build a model in which the binding of FIP family proteins to Rab11 can be described in terms of conformational changes and that suggests new modes of regulation.

Disorder and structure in the Rab11 binding domain of Rab11 family interacting protein 2.,Wei J, Liu Y, Bose K, Henry GD, Baleja JD Biochemistry. 2009 Jan 27;48(3):549-57. PMID:19119858^[5]

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

References

↑ Cullis DN, Philip B, Baleja JD, Feig LA. Rab11-FIP2, an adaptor protein connecting cellular components involved in internalization and recycling of epidermal growth factor receptors. J Biol Chem. 2002 Dec 20;277(51):49158-66. Epub 2002 Oct 2. PMID:12364336 doi:10.1074/jbc.M206316200
↑ Lindsay AJ, McCaffrey MW. The C2 domains of the class I Rab11 family of interacting proteins target recycling vesicles to the plasma membrane. J Cell Sci. 2004 Sep 1;117(Pt 19):4365-75. Epub 2004 Aug 10. PMID:15304524 doi:10.1242/jcs.01280
↑ Ducharme NA, Hales CM, Lapierre LA, Ham AJ, Oztan A, Apodaca G, Goldenring JR. MARK2/EMK1/Par-1Balpha phosphorylation of Rab11-family interacting protein 2 is necessary for the timely establishment of polarity in Madin-Darby canine kidney cells. Mol Biol Cell. 2006 Aug;17(8):3625-37. Epub 2006 Jun 14. PMID:16775013 doi:10.1091/mbc.E05-08-0736
↑ Chu BB, Ge L, Xie C, Zhao Y, Miao HH, Wang J, Li BL, Song BL. Requirement of myosin Vb.Rab11a.Rab11-FIP2 complex in cholesterol-regulated translocation of NPC1L1 to the cell surface. J Biol Chem. 2009 Aug 14;284(33):22481-90. doi: 10.1074/jbc.M109.034355. Epub, 2009 Jun 19. PMID:19542231 doi:10.1074/jbc.M109.034355
↑ Wei J, Liu Y, Bose K, Henry GD, Baleja JD. Disorder and structure in the Rab11 binding domain of Rab11 family interacting protein 2. Biochemistry. 2009 Jan 27;48(3):549-57. PMID:19119858 doi:10.1021/bi8020197

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

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/2k6s"

Categories: Homo sapiens | Large Structures | Baleja JD | Liu Y | Wei J

@@ Line 4: / Line 4: @@
 == Structural highlights ==
 <table><tr><td colspan='2'>[[2k6s]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2K6S OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2K6S FirstGlance]. <br>
-</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=2k6s FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2k6s OCA], [https://pdbe.org/2k6s PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2k6s RCSB], [https://www.ebi.ac.uk/pdbsum/2k6s PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2k6s ProSAT]</span></td></tr>
+</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">Solution NMR</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=2k6s FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2k6s OCA], [https://pdbe.org/2k6s PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2k6s RCSB], [https://www.ebi.ac.uk/pdbsum/2k6s PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2k6s ProSAT]</span></td></tr>
 </table>
 == Function ==

2k6s

From Proteopedia

Current revision

Structure of Rab11-FIP2 C-terminal Coiled-coil Domain

Structural highlights

Function

Evolutionary Conservation

Publication Abstract from PubMed

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

Views

Personal tools

Navigation

Search

Toolbox