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.


2jjz

From Proteopedia

(Difference between revisions)
Jump to: navigation, search
m (Protected "2jjz" [edit=sysop:move=sysop])
Line 1: Line 1:
-
[[Image:2jjz.png|left|200px]]
+
==CRYSTAL STRUCTURE OF HUMAN IBA2, ORTHORHOMBIC CRYSTAL FORM==
 +
<StructureSection load='2jjz' size='340' side='right' caption='[[2jjz]], [[Resolution|resolution]] 2.15&Aring;' scene=''>
 +
== Structural highlights ==
 +
[[2jjz]] is a 4 chain structure with sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2JJZ OCA]. <br>
 +
<b>Related:</b> [[2vtg|2vtg]]<br>
 +
<b>Activity:</b> <span class='plainlinks'>[http://en.wikipedia.org/wiki/Glucokinase Glucokinase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.7.1.2 2.7.1.2] </span><br>
 +
== Evolutionary Conservation ==
 +
[[Image:Consurf_key_small.gif|right]]
 +
Check<jmol>
 +
<jmolCheckbox>
 +
<scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/jj/2jjz_consurf.spt"</scriptWhenChecked>
 +
<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
 +
<text>to colour the structure by Evolutionary Conservation</text>
 +
</jmolCheckbox>
 +
</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/chain_selection.php?pdb_ID=2ata ConSurf].
 +
<div style="clear:both"></div>
 +
== Publication Abstract from PubMed ==
 +
Iba2 is a homolog of ionized calcium-binding adapter molecule 1 (Iba1), a 17-kDa protein that binds and cross-links filamentous actin (F-actin) and localizes to membrane ruffles and phagocytic cups. Here, we present the crystal structure of human Iba2 and its homodimerization properties, F-actin cross-linking activity, cellular localization and recruitment upon bacterial invasion in comparison with Iba1. The Iba2 structure comprises two central EF-hand motifs lacking bound Ca2+. Iba2 crystallized as a homodimer stabilized by a disulfide bridge and zinc ions. Analytical ultracentrifugation revealed a different mode of dimerization under reducing conditions that was independent of Ca2+. Furthermore, no binding of Ca2+ up to 0.1 mM was detected by equilibrium dialysis. Correspondingly, Iba EF-hand motifs lack residues essential for strong Ca2+ coordination. Sedimentation experiments and microscopy detected pronounced, indistinguishable F-actin binding and cross-linking activity of Iba1 and Iba2 with induction of F-actin bundles. Fluorescent Iba fusion proteins were expressed in HeLa cells and co-localized with F-actin. Iba1 was recruited into cellular projections to a larger extent than Iba2. Additionally, we studied Iba recruitment in a Shigella invasion model that induces cytoskeletal rearrangements. Both proteins were recruited into the bacterial invasion zone and Iba1 was again concentrated slightly higher in the cellular extensions.
-
<!--
+
Structural and functional characterization of human Iba proteins.,Schulze JO, Quedenau C, Roske Y, Adam T, Schuler H, Behlke J, Turnbull AP, Sievert V, Scheich C, Mueller U, Heinemann U, Bussow K FEBS J. 2008 Sep;275(18):4627-40. Epub 2008 Aug 11. PMID:18699778<ref>PMID:18699778</ref>
-
The line below this paragraph, containing "STRUCTURE_2jjz", creates the "Structure Box" on the page.
+
-
You may change the PDB parameter (which sets the PDB file loaded into the applet)
+
-
or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
+
-
or leave the SCENE parameter empty for the default display.
+
-
-->
+
-
{{STRUCTURE_2jjz| PDB=2jjz | SCENE= }}
+
-
===CRYSTAL STRUCTURE OF HUMAN IBA2, ORTHORHOMBIC CRYSTAL FORM===
+
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br>
-
 
+
== References ==
-
 
+
<references/>
-
<!--
+
__TOC__
-
The line below this paragraph, {{ABSTRACT_PUBMED_18699778}}, adds the Publication Abstract to the page
+
</StructureSection>
-
(as it appears on PubMed at http://www.pubmed.gov), where 18699778 is the PubMed ID number.
+
-
-->
+
-
{{ABSTRACT_PUBMED_18699778}}
+
-
 
+
-
==About this Structure==
+
-
[[2jjz]] is a 4 chain structure with sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2JJZ OCA].
+
-
 
+
-
==Reference==
+
-
<ref group="xtra">PMID:018699778</ref><references group="xtra"/>
+
[[Category: Homo sapiens]]
[[Category: Homo sapiens]]
[[Category: Buessow, K.]]
[[Category: Buessow, K.]]

Revision as of 08:18, 30 April 2014

CRYSTAL STRUCTURE OF HUMAN IBA2, ORTHORHOMBIC CRYSTAL FORM

2jjz, resolution 2.15Å

Drag the structure with the mouse to rotate

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/2jjz"
Personal tools