2MUZ

ssNMR structure of a designed rocker protein

Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 1 
  • Conformers Submitted: 1 
  • Selection Criteria: structures with the least restraint violations 

wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history. 


Literature

De novo design of a transmembrane Zn2+-transporting four-helix bundle.

Joh, N.H., Wang, T., Bhate, M.P., Acharya, R., Wu, Y., Grabe, M., Hong, M., Grigoryan, G., DeGrado, W.F.

(2014) Science 346: 1520-1524

  • DOI: 10.1126/science.1261172
  • Primary Citation of Related Structures:  
    2MUZ, 4P6J, 4P6K, 4P6L

  • PubMed Abstract: 

    • The design of functional membrane proteins from first principles represents a grand challenge in chemistry and structural biology. Here, we report the design of a membrane-spanning, four-helical bundle that transports first-row transition metal ions Zn(2+) and Co(2+), but not Ca(2+), across membranes ...

    The design of functional membrane proteins from first principles represents a grand challenge in chemistry and structural biology. Here, we report the design of a membrane-spanning, four-helical bundle that transports first-row transition metal ions Zn(2+) and Co(2+), but not Ca(2+), across membranes. The conduction path was designed to contain two di-metal binding sites that bind with negative cooperativity. X-ray crystallography and solid-state and solution nuclear magnetic resonance indicate that the overall helical bundle is formed from two tightly interacting pairs of helices, which form individual domains that interact weakly along a more dynamic interface. Vesicle flux experiments show that as Zn(2+) ions diffuse down their concentration gradients, protons are antiported. These experiments illustrate the feasibility of designing membrane proteins with predefined structural and dynamic properties.

    Organizational Affiliation: 

    Department of Pharmaceutical Chemistry, Cardiovascular Research Institute, University of California, San Francisco, San Francisco, CA 94158, USA. william.degrado@ucsf.edu gevorg.grigoryan@dartmouth.edu meihong@mit.edu michael.grabe@ucsf.edu.



Macromolecules
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(by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
designed rocker proteinA, B, C, D26synthetic constructMutation(s): 0 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
Protein Feature View
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  • Reference Sequence
Small Molecules
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
PFF
Query on PFF		A, B, C, D L-PEPTIDE LINKINGC9 H10 F N O2PHE
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 1 
  • Conformers Submitted: 1 
  • Selection Criteria: structures with the least restraint violations 
  • OLDERADO: 2MUZ Olderado

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2014-12-24
    Type: Initial release
  • Version 1.1: 2015-01-14
    Changes: Database references