1YAC

THE 1.8 ANGSTROM CRYSTAL STRUCTURE OF THE YCAC GENE PRODUCT FROM ESCHERICHIA COLI REVEALS AN OCTAMERIC HYDROLASE OF UNKNOWN SPECIFICITY

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.80 Å
  • R-Value Free: 0.196 
  • R-Value Work: 0.175 
  • R-Value Observed: 0.175 

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This is version 1.2 of the entry. See complete history. 


Literature

The 1.8 A crystal structure of the ycaC gene product from Escherichia coli reveals an octameric hydrolase of unknown specificity.

Colovos, C., Cascio, D., Yeates, T.O.

(1998) Structure 6: 1329-1337

  • DOI: 10.1016/s0969-2126(98)00132-4
  • Primary Citation of Related Structures:  
    1YAC

  • PubMed Abstract: 

    • The ycaC gene comprises a 621 base pair open reading frame in Escherichia coli. The ycaC gene product (ycaCgp) is uncharacterized and has no assigned function. The closest sequence homologs with an assigned function belong to a family of bacterial hydrolases that catalyze isochorismatase-like reactions, but these have only low sequence similarity to ycaCgp (approximately 20% amino acid identity) ...

    The ycaC gene comprises a 621 base pair open reading frame in Escherichia coli. The ycaC gene product (ycaCgp) is uncharacterized and has no assigned function. The closest sequence homologs with an assigned function belong to a family of bacterial hydrolases that catalyze isochorismatase-like reactions, but these have only low sequence similarity to ycaCgp (approximately 20% amino acid identity). The ycaCgp was obtained and identified during crystallization trials of an unrelated E. coli protein with which it co-purified.

    Organizational Affiliation: 

    Department of Chemistry & Biochemistry Molecular Biology Institute UCLA-DOE Laboratory of Structural Biology and Molecular Medicine University of California Los Angeles, 405 Hilgard Avenue, Los Angeles, CA 90095, USA.



Macromolecules
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(by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
YCAC GENE PRODUCTA, B208Escherichia coliMutation(s): 0 
Gene Names: ycaC
EC: 4
UniProt
Find proteins for P21367 (Escherichia coli (strain K12))
Explore P21367 
Go to UniProtKB:  P21367
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP21367
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.80 Å
  • R-Value Free: 0.196 
  • R-Value Work: 0.175 
  • R-Value Observed: 0.175 
  • Space Group: P 4 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 91.898α = 90
b = 91.898β = 90
c = 113.4γ = 90
Software Package:
Software NamePurpose
X-PLORmodel building
X-PLORrefinement
DENZOdata reduction
SCALEPACKdata scaling
X-PLORphasing

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 1999-02-16
    Type: Initial release
  • Version 1.1: 2008-03-24
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Derived calculations, Version format compliance