2j5d

From Proteopedia

(Difference between revisions)

Revision as of 06:56, 28 February 2018

NMR structure of BNIP3 transmembrane domain in lipid bicelles

Structural highlights

2j5d is a 2 chain structure with sequence from Human. Full experimental information is available from OCA. For a guided tour on the structure components use FirstGlance.
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[BNIP3_HUMAN] Apoptosis-inducing protein that can overcome BCL2 suppression. May play a role in repartitioning calcium between the two major intracellular calcium stores in association with BCL2. Involved in mitochondrial quality control via its interaction with SPATA18/MIEAP: in response to mitochondrial damage, participates to mitochondrial protein catabolic process (also named MALM) leading to the degradation of damaged proteins inside mitochondria. The physical interaction of SPATA18/MIEAP, BNIP3 and BNIP3L/NIX at the mitochondrial outer membrane regulates the opening of a pore in the mitochondrial double membrane in order to mediate the translocation of lysosomal proteins from the cytoplasm to the mitochondrial matrix. Plays an important role in the calprotectin (S100A8/A9)-induced cell death pathway.^[1] ^[2]

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

BNip3 is a prominent representative of apoptotic Bcl-2 proteins with rather unique properties initiating an atypical programmed cell death pathway resembling both necrosis and apoptosis. Many Bcl-2 family proteins modulate the permeability state of the outer mitochondrial membrane by forming homo- and hetero-oligomers. The structure and dynamics of the homodimeric transmembrane domain of BNip3 were investigated with the aid of solution NMR in lipid bicelles and molecular dynamics energy relaxation in an explicit lipid bilayer. The right-handed parallel helix-helix structure of the domain with a hydrogen bond-rich His-Ser node in the middle of the membrane, accessibility of the node for water, and continuous hydrophilic track across the membrane suggest that the domain can provide an ion-conducting pathway through the membrane. Incorporation of the BNip3 transmembrane domain into an artificial lipid bilayer resulted in pH-dependent conductivity increase. A possible biological implication of the findings in relation to triggering necrosis-like cell death by BNip3 is discussed.

Unique dimeric structure of BNip3 transmembrane domain suggests membrane permeabilization as a cell death trigger.,Bocharov EV, Pustovalova YE, Pavlov KV, Volynsky PE, Goncharuk MV, Ermolyuk YS, Karpunin DV, Schulga AA, Kirpichnikov MP, Efremov RG, Maslennikov IV, Arseniev AS J Biol Chem. 2007 Jun 1;282(22):16256-66. Epub 2007 Apr 4. PMID:17412696^[3]

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

References

↑ Ghavami S, Eshragi M, Ande SR, Chazin WJ, Klonisch T, Halayko AJ, McNeill KD, Hashemi M, Kerkhoff C, Los M. S100A8/A9 induces autophagy and apoptosis via ROS-mediated cross-talk between mitochondria and lysosomes that involves BNIP3. Cell Res. 2010 Mar;20(3):314-31. doi: 10.1038/cr.2009.129. Epub 2009 Nov 24. PMID:19935772 doi:10.1038/cr.2009.129
↑ Nakamura Y, Kitamura N, Shinogi D, Yoshida M, Goda O, Murai R, Kamino H, Arakawa H. BNIP3 and NIX mediate Mieap-induced accumulation of lysosomal proteins within mitochondria. PLoS One. 2012;7(1):e30767. doi: 10.1371/journal.pone.0030767. Epub 2012 Jan 26. PMID:22292033 doi:http://dx.doi.org/10.1371/journal.pone.0030767
↑ Bocharov EV, Pustovalova YE, Pavlov KV, Volynsky PE, Goncharuk MV, Ermolyuk YS, Karpunin DV, Schulga AA, Kirpichnikov MP, Efremov RG, Maslennikov IV, Arseniev AS. Unique dimeric structure of BNip3 transmembrane domain suggests membrane permeabilization as a cell death trigger. J Biol Chem. 2007 Jun 1;282(22):16256-66. Epub 2007 Apr 4. PMID:17412696 doi:10.1074/jbc.M701745200

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/2j5d"

@@ Line 1: / Line 1: @@
-==NMR STRUCTURE OF BNIP3 TRANSMEMBRANE DOMAIN IN LIPID BICELLES==
+==NMR structure of BNIP3 transmembrane domain in lipid bicelles==
 <StructureSection load='2j5d' size='340' side='right' caption='[[2j5d]], [[NMR_Ensembles_of_Models | 16 NMR models]]' scene=''>
 == Structural highlights ==
 <table><tr><td colspan='2'>[[2j5d]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Human Human]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2J5D OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2J5D FirstGlance]. <br>
-</td></tr><tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2j5d FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2j5d OCA], [http://pdbe.org/2j5d PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=2j5d RCSB], [http://www.ebi.ac.uk/pdbsum/2j5d PDBsum]</span></td></tr>
+</td></tr><tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2j5d FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2j5d OCA], [http://pdbe.org/2j5d PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=2j5d RCSB], [http://www.ebi.ac.uk/pdbsum/2j5d PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=2j5d ProSAT]</span></td></tr>
 </table>
 == Function ==
@@ Line 11: / Line 12: @@
 Check<jmol>
   <jmolCheckbox>
-    <scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/j5/2j5d_consurf.spt"</scriptWhenChecked>
+    <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/j5/2j5d_consurf.spt"</scriptWhenChecked>
     <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
     <text>to colour the structure by Evolutionary Conservation</text>

2j5d

From Proteopedia

Revision as of 06:56, 28 February 2018

NMR structure of BNIP3 transmembrane domain in lipid bicelles

Structural highlights

Function

Evolutionary Conservation

Publication Abstract from PubMed

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

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