1sb6: Difference between revisions

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==Solution structure of a cyanobacterial copper metallochaperone, ScAtx1==
==Solution structure of a cyanobacterial copper metallochaperone, ScAtx1==
<StructureSection load='1sb6' size='340' side='right'caption='[[1sb6]], [[NMR_Ensembles_of_Models | 20 NMR models]]' scene=''>
<StructureSection load='1sb6' size='340' side='right'caption='[[1sb6]]' scene=''>
== Structural highlights ==
== Structural highlights ==
<table><tr><td colspan='2'>[[1sb6]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Aphanocapsa_sp._(strain_n-1) Aphanocapsa sp. (strain n-1)]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1SB6 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1SB6 FirstGlance]. <br>
<table><tr><td colspan='2'>[[1sb6]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Synechocystis_sp._PCC_6803 Synechocystis sp. PCC 6803]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1SB6 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1SB6 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=1sb6 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1sb6 OCA], [http://pdbe.org/1sb6 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1sb6 RCSB], [http://www.ebi.ac.uk/pdbsum/1sb6 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=1sb6 ProSAT]</span></td></tr>
</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='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1sb6 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1sb6 OCA], [https://pdbe.org/1sb6 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1sb6 RCSB], [https://www.ebi.ac.uk/pdbsum/1sb6 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1sb6 ProSAT]</span></td></tr>
</table>
</table>
== Function ==
[https://www.uniprot.org/uniprot/P73213_SYNY3 P73213_SYNY3]
== Evolutionary Conservation ==
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
[[Image:Consurf_key_small.gif|200px|right]]
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</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=1sb6 ConSurf].
</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=1sb6 ConSurf].
<div style="clear:both"></div>
<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
The Atx1 copper metallochaperone from Synechocystis PCC 6803, ScAtx1, interacts with two P(1)-type copper ATPases to supply copper proteins within intracellular compartments, avoiding ATPases for other metals en route. Here we report NMR-derived solution structures for ScAtx1. The monomeric apo form has a betaalphabetabetaalpha fold with backbone motions largely restricted to loop 1 containing Cys-12 and Cys-15. The tumbling rate of Cu(I)ScAtx1 (0.1-0.8 mm) implies dimers. Experimental restraints are satisfied by symmetrical dimers with Cys-12 or His-61, but not Cys-15, invading the copper site of the opposing subunit. A full sequence of copper ligands from the cell surface to thylakoid compartments is proposed, considering in vitro homodimer liganding to mimic in vivo liganding in ScAtx1-ATPase heterodimers. A monomeric high resolution structure for Cu(I)ScAtx1, with Cys-12, Cys-15, and His-61 as ligands, is calculated without violations despite the rotational correlation time. (2)J(NH) couplings in the imidazole ring of His-61 establish coordination of N(epsilon2) to copper. His-61 is analogous to Lys-65 in eukaryotic metallochaperones, stabilizing Cu(I)S(2) complexes but by binding Cu(I) rather than compensating charge. Cys-Cys-His ligand sets are an emergent theme in some copper metallochaperones, although not in related Atx1, CopZ, or Hah1. Surface charge (Glu-13) close to the metal-binding site of ScAtx1 is likely to support interaction with complementary surfaces of copper-transporting ATPases (PacS-Arg-11 and CtaA-Lys-14) but to discourage interaction with zinc ATPase ZiaA and so inhibit aberrant formation of copper-ZiaA complexes.
Solution structures of a cyanobacterial metallochaperone: insight into an atypical copper-binding motif.,Banci L, Bertini I, Ciofi-Baffoni S, Su XC, Borrelly GP, Robinson NJ J Biol Chem. 2004 Jun 25;279(26):27502-10. Epub 2004 Apr 8. PMID:15075318<ref>PMID:15075318</ref>
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 1sb6" style="background-color:#fffaf0;"></div>
== References ==
<references/>
__TOC__
__TOC__
</StructureSection>
</StructureSection>
[[Category: Large Structures]]
[[Category: Large Structures]]
[[Category: Banci, L]]
[[Category: Synechocystis sp. PCC 6803]]
[[Category: Bertini, I]]
[[Category: Banci L]]
[[Category: Borrelly, G P]]
[[Category: Bertini I]]
[[Category: Ciofi-Baffoni, S]]
[[Category: Borrelly GP]]
[[Category: Robinson, N J]]
[[Category: Ciofi-Baffoni S]]
[[Category: SPINE, Structural Proteomics in Europe]]
[[Category: Robinson NJ]]
[[Category: Su, X C]]
[[Category: Su XC]]
[[Category: Chaperone]]
[[Category: Copper chaperone]]
[[Category: New metal binding motif]]
[[Category: Spine]]
[[Category: Structural genomic]]
[[Category: Structural proteomics in europe]]

Latest revision as of 09:34, 1 May 2024

Solution structure of a cyanobacterial copper metallochaperone, ScAtx1Solution structure of a cyanobacterial copper metallochaperone, ScAtx1

Structural highlights

1sb6 is a 1 chain structure with sequence from Synechocystis sp. PCC 6803. Full experimental information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:Solution NMR
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

P73213_SYNY3

Evolutionary Conservation

Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.

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OCA
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