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.


1mpv

From Proteopedia

(Difference between revisions)
Jump to: navigation, search
(New page: 200px<br /> <applet load="1mpv" size="450" color="white" frame="true" align="right" spinBox="true" caption="1mpv" /> '''Structure of bhpBR3, the BAFF-binding loop ...)
Current revision (18:50, 29 November 2023) (edit) (undo)
 
(13 intermediate revisions not shown.)
Line 1: Line 1:
-
[[Image:1mpv.gif|left|200px]]<br />
 
-
<applet load="1mpv" size="450" color="white" frame="true" align="right" spinBox="true"
 
-
caption="1mpv" />
 
-
'''Structure of bhpBR3, the BAFF-binding loop of BR3 embedded in a beta-hairpin peptide'''<br />
 
-
==Overview==
+
==Structure of bhpBR3, the BAFF-binding loop of BR3 embedded in a beta-hairpin peptide==
-
The TNF-like ligand BAFF/BLyS is a potent survival factor for B cells. It, binds three receptors: TACI, BCMA, and BR3. We show that BR3 signaling, promotes processing of the transcription factor NF-kappaB2/p100 to p52., NF-kappaB2/p100 cleavage was abrogated in B cells from A/WySnJ mice, possessing a mutant BR3 gene, but not in TACI or BCMA null B cells., Furthermore, wild-type mice injected with BAFF-neutralizing BR3-Fc protein, showed reduced basal NF-kappaB2 activation. BR3-Fc treatment of NZB/WF1, mice, which develop a fatal lupus-like syndrome, inhibited NF-kappaB2, processing and attenuated the disease process. Since inhibiting the, BR3-BAFF interaction has therapeutic ramifications, the ligand binding, interface of BR3 was investigated and found to reside within a 26 residue, core domain. When stabilized within a structured beta-hairpin peptide, six, of these residues were sufficient to confer binding to BAFF.
+
<StructureSection load='1mpv' size='340' side='right'caption='[[1mpv]]' scene=''>
 +
== Structural highlights ==
 +
<table><tr><td colspan='2'>[[1mpv]] is a 1 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=1MPV OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1MPV FirstGlance]. <br>
 +
</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='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=ACE:ACETYL+GROUP'>ACE</scene>, <scene name='pdbligand=NH2:AMINO+GROUP'>NH2</scene></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=1mpv FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1mpv OCA], [https://pdbe.org/1mpv PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1mpv RCSB], [https://www.ebi.ac.uk/pdbsum/1mpv PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1mpv ProSAT]</span></td></tr>
 +
</table>
 +
== Disease ==
 +
[https://www.uniprot.org/uniprot/TR13C_HUMAN TR13C_HUMAN] Defects in TNFRSF13C are the cause of immunodeficiency common variable type 4 (CVID4) [MIM:[https://omim.org/entry/613494 613494]; also called antibody deficiency due to BAFFR defect. CVID4 is a primary immunodeficiency characterized by antibody deficiency, hypogammaglobulinemia, recurrent bacterial infections and an inability to mount an antibody response to antigen. The defect results from a failure of B-cell differentiation and impaired secretion of immunoglobulins; the numbers of circulating B-cells is usually in the normal range, but can be low.<ref>PMID:19666484</ref>
 +
== Function ==
 +
[https://www.uniprot.org/uniprot/TR13C_HUMAN TR13C_HUMAN] B-cell receptor specific for TNFSF13B/TALL1/BAFF/BLyS. Promotes the survival of mature B-cells and the B-cell response.<ref>PMID:11591325</ref> <ref>PMID:12387744</ref>
 +
<div style="background-color:#fffaf0;">
 +
== Publication Abstract from PubMed ==
 +
The TNF-like ligand BAFF/BLyS is a potent survival factor for B cells. It binds three receptors: TACI, BCMA, and BR3. We show that BR3 signaling promotes processing of the transcription factor NF-kappaB2/p100 to p52. NF-kappaB2/p100 cleavage was abrogated in B cells from A/WySnJ mice possessing a mutant BR3 gene, but not in TACI or BCMA null B cells. Furthermore, wild-type mice injected with BAFF-neutralizing BR3-Fc protein showed reduced basal NF-kappaB2 activation. BR3-Fc treatment of NZB/WF1 mice, which develop a fatal lupus-like syndrome, inhibited NF-kappaB2 processing and attenuated the disease process. Since inhibiting the BR3-BAFF interaction has therapeutic ramifications, the ligand binding interface of BR3 was investigated and found to reside within a 26 residue core domain. When stabilized within a structured beta-hairpin peptide, six of these residues were sufficient to confer binding to BAFF.
-
==About this Structure==
+
BAFF/BLyS receptor 3 binds the B cell survival factor BAFF ligand through a discrete surface loop and promotes processing of NF-kappaB2.,Kayagaki N, Yan M, Seshasayee D, Wang H, Lee W, French DM, Grewal IS, Cochran AG, Gordon NC, Yin J, Starovasnik MA, Dixit VM Immunity. 2002 Oct;17(4):515-24. PMID:12387744<ref>PMID:12387744</ref>
-
1MPV is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/ ] with ACE and NH2 as [http://en.wikipedia.org/wiki/ligands ligands]. Full crystallographic information is available from [http://ispc.weizmann.ac.il/oca-bin/ocashort?id=1MPV OCA].
+
-
==Reference==
+
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
-
BAFF/BLyS receptor 3 binds the B cell survival factor BAFF ligand through a discrete surface loop and promotes processing of NF-kappaB2., Kayagaki N, Yan M, Seshasayee D, Wang H, Lee W, French DM, Grewal IS, Cochran AG, Gordon NC, Yin J, Starovasnik MA, Dixit VM, Immunity. 2002 Oct;17(4):515-24. PMID:[http://ispc.weizmann.ac.il//pmbin/getpm?pmid=12387744 12387744]
+
</div>
-
[[Category: Single protein]]
+
<div class="pdbe-citations 1mpv" style="background-color:#fffaf0;"></div>
-
[[Category: Cochran, A.G.]]
+
== References ==
-
[[Category: Dixit, V.M.]]
+
<references/>
-
[[Category: French, D.M.]]
+
__TOC__
-
[[Category: Gordon, N.C.]]
+
</StructureSection>
-
[[Category: Grewal, I.S.]]
+
[[Category: Homo sapiens]]
-
[[Category: Kayagaki, N.]]
+
[[Category: Large Structures]]
-
[[Category: Lee, W.]]
+
[[Category: Cochran AG]]
-
[[Category: Seshasayee, D.]]
+
[[Category: Dixit VM]]
-
[[Category: Starovasnik, M.A.]]
+
[[Category: French DM]]
-
[[Category: Wang, H.]]
+
[[Category: Gordon NC]]
-
[[Category: Yan, M.]]
+
[[Category: Grewal IS]]
-
[[Category: Yin, J.]]
+
[[Category: Kayagaki N]]
-
[[Category: ACE]]
+
[[Category: Lee W]]
-
[[Category: NH2]]
+
[[Category: Seshasayee D]]
-
[[Category: beta-hairpin]]
+
[[Category: Starovasnik MA]]
-
 
+
[[Category: Wang H]]
-
''Page seeded by [http://ispc.weizmann.ac.il/oca OCA ] on Mon Nov 12 18:13:41 2007''
+
[[Category: Yan M]]
 +
[[Category: Yin J]]

Current revision

Structure of bhpBR3, the BAFF-binding loop of BR3 embedded in a beta-hairpin peptide

PDB ID 1mpv

Drag the structure with the mouse to rotate

Proteopedia Page Contributors and Editors (what is this?)

OCA

Personal tools