2LDI

NMR solution structure of ZiaAN sub mutant


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 300 
  • Conformers Submitted: 30 
  • Selection Criteria: target function 

wwPDB Validation   3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

Cyanobacterial metallochaperone inhibits deleterious side reactions of copper.

Tottey, S.Patterson, C.J.Banci, L.Bertini, I.Felli, I.C.Pavelkova, A.Dainty, S.J.Pernil, R.Waldron, K.J.Foster, A.W.Robinson, N.J.

(2012) Proc Natl Acad Sci U S A 109: 95-100

  • DOI: 10.1073/pnas.1117515109
  • Primary Citation of Related Structures:  
    2LDI

  • PubMed Abstract: 
  • Copper metallochaperones supply copper to cupro-proteins through copper-mediated protein-protein-interactions and it has been hypothesized that metallochaperones thereby inhibit copper from causing damage en route. Evidence is presented in support of this latter role for cyanobacterial metallochaperone, Atx1 ...

    Copper metallochaperones supply copper to cupro-proteins through copper-mediated protein-protein-interactions and it has been hypothesized that metallochaperones thereby inhibit copper from causing damage en route. Evidence is presented in support of this latter role for cyanobacterial metallochaperone, Atx1. In cyanobacteria Atx1 contributes towards the supply of copper to plastocyanin inside thylakoids but it is shown here that in copper-replete medium, copper can reach plastocyanin without Atx1. Unlike metallochaperone-independent copper-supply to superoxide dismutase in eukaryotes, glutathione is not essential for Atx1-independent supply to plastocyanin: Double mutants missing atx1 and gshB (encoding glutathione synthetase) accumulate the same number of atoms of copper per cell in the plastocyanin pool as wild type. Critically, Δatx1ΔgshB are hypersensitive to elevated copper relative to wild type cells and also relative to ΔgshB single mutants with evidence that hypersensitivity arises due to the mislocation of copper to sites for other metals including iron and zinc. The zinc site on the amino-terminal domain (ZiaA(N)) of the P(1)-type zinc-transporting ATPase is especially similar to the copper site of the Atx1 target PacS(N), and ZiaA(N) will bind Cu(I) more tightly than zinc. An NMR model of a substituted-ZiaA(N)-Cu(I)-Atx1 heterodimer has been generated making it possible to visualize a juxtaposition of residues surrounding the ZiaA(N) zinc site, including Asp(18), which normally repulse Atx1. Equivalent repulsion between bacterial copper metallochaperones and the amino-terminal regions of P(1)-type ATPases for metals other than Cu(I) is conserved, again consistent with a role for copper metallochaperones to withhold copper from binding sites for other metals.


    Organizational Affiliation

    Department of Chemistry, Biophysical Sciences Institute, School of Biological and Biomedical Sciences, University of Durham, Durham DH1 3LE, United Kingdom.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Zinc-transporting ATPaseA106Synechocystis sp. PCC 6803 substr. KazusaMutation(s): 0 
Gene Names: slr0798ziaA
EC: 3.6.3.5 (PDB Primary Data), 7.2.2.12 (UniProt)
UniProt
Find proteins for Q59998 (Synechocystis sp. (strain PCC 6803 / Kazusa))
Explore Q59998 
Go to UniProtKB:  Q59998
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ59998
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 300 
  • Conformers Submitted: 30 
  • Selection Criteria: target function 
  • OLDERADO: 2LDI Olderado

Structure Validation

View Full Validation Report




Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2011-11-30
    Type: Initial release
  • Version 1.1: 2011-12-21
    Changes: Database references
  • Version 1.2: 2012-01-18
    Changes: Database references
  • Version 1.3: 2016-04-27
    Changes: Structure summary