1t91

From Proteopedia

(Difference between revisions)
Jump to: navigation, search
Line 4: Line 4:
|PDB= 1t91 |SIZE=350|CAPTION= <scene name='initialview01'>1t91</scene>, resolution 1.9&Aring;
|PDB= 1t91 |SIZE=350|CAPTION= <scene name='initialview01'>1t91</scene>, resolution 1.9&Aring;
|SITE=
|SITE=
-
|LIGAND= <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene> and <scene name='pdbligand=GTP:GUANOSINE-5'-TRIPHOSPHATE'>GTP</scene>
+
|LIGAND= <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene> and <scene name='pdbligand=GTP:GUANOSINE-5&#39;-TRIPHOSPHATE'>GTP</scene>
|ACTIVITY=
|ACTIVITY=
|GENE= Rab7 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 Homo sapiens])
|GENE= Rab7 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 Homo sapiens])
Line 34: Line 34:
[[Category: small gtpase]]
[[Category: small gtpase]]
-
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Mar 20 14:15:28 2008''
+
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun Mar 23 13:42:39 2008''

Revision as of 11:42, 23 March 2008

Image:1t91.gif


PDB ID 1t91

Drag the structure with the mouse to rotate
, resolution 1.9Å
Ligands: and
Gene: Rab7 (Homo sapiens)
Coordinates: save as pdb, mmCIF, xml



crystal structure of human small GTPase Rab7(GTP)


Contents

Overview

Rab7 regulates vesicle traffic from early to late endosomes, and from late endosomes to lysosomes. The crystal structure of Rab7-GTP in complex with the Rab7 binding domain of RILP reveals that Rab7 interacts with RILP specifically via two distinct areas, with the first one involving the switch and interswitch regions and the second one consisting of RabSF1 and RabSF4. Disruption of these interactions by mutations abrogates late endosomal/lysosomal targeting of Rab7 and RILP. The Rab7 binding domain of RILP forms a coiled-coil homodimer with two symmetric surfaces to interact with two separate Rab7-GTP molecules, forming a dyad configuration of Rab7-RILP(2)-Rab7. Mutations that disrupt RILP dimerization also abolish its interactions with Rab7-GTP and late endosomal/lysosomal targeting, suggesting that the dimeric form of RILP is a functional unit. Structural comparison suggests that the combined use of RabSF1 and RabSF4 with the switch regions may be a general mode of action for most Rab proteins in regulating membrane trafficking.

Disease

Known disease associated with this structure: Charcot-Marie-Tooth disease, type 2B OMIM:[602298]

About this Structure

1T91 is a Single protein structure of sequence from Homo sapiens. Full crystallographic information is available from OCA.

Reference

Structural basis for recruitment of RILP by small GTPase Rab7., Wu M, Wang T, Loh E, Hong W, Song H, EMBO J. 2005 Apr 20;24(8):1491-501. Epub 2005 Mar 31. PMID:15933719

Page seeded by OCA on Sun Mar 23 13:42:39 2008

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/1t91"
Personal tools