Solution structure of human zeta-COP

Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 20 
  • Selection Criteria: structures with the lowest energy 

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This is version 1.4 of the entry. See complete history


Solution structure of human zeta-COP: direct evidences for structural similarity between COP I and clathrin-adaptor coats

Yu, W.Lin, J.Jin, C.Xia, B.

(2009) J Mol Biol 386: 903-912

  • DOI: https://doi.org/10.1016/j.jmb.2008.12.083
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 

    COP-I-coated vesicles are protein and lipid carriers that mediate intra-Golgi transport and transport from the cis-Golgi complex to the endoplasmic reticulum in cells. The coatomer of the vesicles coat is comprised of seven subunits: alpha-COP, epsilon-COP, beta'-COP, beta-COP, gamma-COP, delta-COP, and zeta-COP. Here we report the solution structure of a truncated form (residues 1-149; zeta-COP149) of human zeta-COP (total 177 residues). It is the first three-dimensional structure of a "core" subunit of the COP I F-subcomplex. The structure of zeta-COP149 mainly consists of a disordered N-terminal tail, a five-stranded antiparallel beta-sheet, a two-stranded antiparallel beta-sheet, and five alpha-helices. The global folding of zeta-COP149 is very similar to the crystal structures of AP1-sigma1 and AP2-sigma2, directly demonstrating the structural similarity between the "core" subunits of the COP I F-subcomplex and adaptor protein complexes. Through structural comparison and mutagenesis study, we have also demonstrated that the heterodimers of zeta-COP149 and gamma-COP have packing interfaces and relative subunit orientations similar to those of AP2-sigma2 and AP2-alpha heterodimers. These results provide direct evidence supporting the previous proposal that the COP I F-subcomplex and adaptor protein complexes have similar tertiary and quaternary structures.

  • Organizational Affiliation

    Beijing Nuclear Magnetic Resonance Center, Peking University, Beijing 100871, China.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Coatomer subunit zeta-1149Homo sapiensMutation(s): 0 
Gene Names: COPZ1COPZ
UniProt & NIH Common Fund Data Resources
Find proteins for P61923 (Homo sapiens)
Explore P61923 
Go to UniProtKB:  P61923
PHAROS:  P61923
GTEx:  ENSG00000111481 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP61923
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 20 
  • Selection Criteria: structures with the lowest energy 

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2007-06-12
    Type: Initial release
  • Version 1.1: 2008-05-01
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2011-11-30
    Changes: Database references
  • Version 1.4: 2024-05-01
    Changes: Data collection, Database references