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.


1rcb

From Proteopedia

(Difference between revisions)
Jump to: navigation, search
Current revision (08:21, 1 May 2024) (edit) (undo)
 
(13 intermediate revisions not shown.)
Line 1: Line 1:
-
[[Image:1rcb.gif|left|200px]]
 
-
<!--
+
==CRYSTAL STRUCTURE OF HUMAN RECOMBINANT INTERLEUKIN-4 AT 2.25 ANGSTROMS RESOLUTION==
-
The line below this paragraph, containing "STRUCTURE_1rcb", creates the "Structure Box" on the page.
+
<StructureSection load='1rcb' size='340' side='right'caption='[[1rcb]], [[Resolution|resolution]] 2.25&Aring;' scene=''>
-
You may change the PDB parameter (which sets the PDB file loaded into the applet)
+
== Structural highlights ==
-
or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
+
<table><tr><td colspan='2'>[[1rcb]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1RCB OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1RCB FirstGlance]. <br>
-
or leave the SCENE parameter empty for the default display.
+
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.25&#8491;</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=1rcb FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1rcb OCA], [https://pdbe.org/1rcb PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1rcb RCSB], [https://www.ebi.ac.uk/pdbsum/1rcb PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1rcb ProSAT]</span></td></tr>
-
{{STRUCTURE_1rcb| PDB=1rcb | SCENE= }}
+
</table>
 +
== Disease ==
 +
[https://www.uniprot.org/uniprot/IL4_HUMAN IL4_HUMAN] Genetic variations in IL4 may be a cause of susceptibility to ischemic stroke (ISCHSTR) [MIM:[https://omim.org/entry/601367 601367]; also known as cerebrovascular accident or cerebral infarction. A stroke is an acute neurologic event leading to death of neural tissue of the brain and resulting in loss of motor, sensory and/or cognitive function. Ischemic strokes, resulting from vascular occlusion, is considered to be a highly complex disease consisting of a group of heterogeneous disorders with multiple genetic and environmental risk factors.<ref>PMID:14681304</ref>
 +
== Function ==
 +
[https://www.uniprot.org/uniprot/IL4_HUMAN IL4_HUMAN] Participates in at least several B-cell activation processes as well as of other cell types. It is a costimulator of DNA-synthesis. It induces the expression of class II MHC molecules on resting B-cells. It enhances both secretion and cell surface expression of IgE and IgG1. It also regulates the expression of the low affinity Fc receptor for IgE (CD23) on both lymphocytes and monocytes.
 +
== Evolutionary Conservation ==
 +
[[Image:Consurf_key_small.gif|200px|right]]
 +
Check<jmol>
 +
<jmolCheckbox>
 +
<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/rc/1rcb_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/main_output.php?pdb_ID=1rcb ConSurf].
 +
<div style="clear:both"></div>
-
'''CRYSTAL STRUCTURE OF HUMAN RECOMBINANT INTERLEUKIN-4 AT 2.25 ANGSTROMS RESOLUTION'''
+
==See Also==
-
 
+
*[[Interleukin 3D structures|Interleukin 3D structures]]
-
 
+
== References ==
-
==Overview==
+
<references/>
-
The crystal structure of human recombinant interleukin-4 (IL-4) has been solved by multiple isomorphous replacement, and refined to an R factor of 0.218 at 2.25 A resolution. The molecule is a left-handed four-helix bundle with a short stretch of beta sheet. The structure bears close resemblance to other cytokines such as granulocyte-macrophage colony stimulating factor (GM-CSF). Although no sequence similarity of IL-4 to GM-CSF and other related cytokines has been previously postulated, structure-based alignment of IL-4 and GM-CSF revealed that the core of the molecules, including large parts of all four helices and extending over half of the molecule, has 30% sequence identity. This may have identified regions which are not only important to maintain structure, but could also play a role in receptor binding.
+
__TOC__
-
 
+
</StructureSection>
-
==About this Structure==
+
-
1RCB is a [[Single protein]] structure of 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=1RCB OCA].
+
-
 
+
-
==Reference==
+
-
Crystal structure of human recombinant interleukin-4 at 2.25 A resolution., Wlodawer A, Pavlovsky A, Gustchina A, FEBS Lett. 1992 Aug 31;309(1):59-64. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/1511746 1511746]
+
[[Category: Homo sapiens]]
[[Category: Homo sapiens]]
-
[[Category: Single protein]]
+
[[Category: Large Structures]]
-
[[Category: Gustchina, A.]]
+
[[Category: Gustchina A]]
-
[[Category: Pavlovsky, A.]]
+
[[Category: Pavlovsky A]]
-
[[Category: Wlodaver, A.]]
+
[[Category: Wlodawer A]]
-
[[Category: Cytokine]]
+
-
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May 3 07:19:43 2008''
+

Current revision

CRYSTAL STRUCTURE OF HUMAN RECOMBINANT INTERLEUKIN-4 AT 2.25 ANGSTROMS RESOLUTION

PDB ID 1rcb

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/1rcb"
Personal tools