1DT1

THERMUS THERMOPHILUS CYTOCHROME C552 SYNTHESIZED BY ESCHERICHIA COLI


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.80 Å
  • R-Value Free: 0.262 
  • R-Value Work: 0.182 
  • R-Value Observed: 0.210 

wwPDB Validation   3D Report Full Report


Ligand Structure Quality Assessment 


This is version 2.0 of the entry. See complete history


Literature

Integrity of thermus thermophilus cytochrome c552 synthesized by Escherichia coli cells expressing the host-specific cytochrome c maturation genes, ccmABCDEFGH: biochemical, spectral, and structural characterization of the recombinant protein.

Fee, J.A.Chen, Y.Todaro, T.R.Bren, K.L.Patel, K.M.Hill, M.G.Gomez-Moran, E.Loehr, T.M.Ai, J.Thony-Meyer, L.Williams, P.A.Stura, E.Sridhar, V.McRee, D.E.

(2000) Protein Sci 9: 2074-2084

  • DOI: https://doi.org/10.1110/ps.9.11.2074
  • Primary Citation of Related Structures:  
    1DT1

  • PubMed Abstract: 

    We describe the design of Escherichia coli cells that synthesize a structurally perfect, recombinant cytochrome c from the Thermus thermophilus cytochrome c552 gene. Key features are (1) construction of a plasmid-borne, chimeric cycA gene encoding an Escherichia coli-compatible, N-terminal signal sequence (MetLysIleSerIleTyrAlaThrLeu AlaAlaLeuSerLeuAlaLeuProAlaGlyAla) followed by the amino acid sequence of mature Thermus cytochrome c552; and (2) coexpression of the chimeric cycA gene with plasmid-borne, host-specific cytochrome c maturation genes (ccmABCDEFGH). Approximately 1 mg of purified protein is obtained from 1 L of culture medium. The recombinant protein, cytochrome rsC552, and native cytochrome c552 have identical redox potentials and are equally active as electron transfer substrates toward cytochrome ba3, a Thermus heme-copper oxidase. Native and recombinant cytochromes c were compared and found to be identical using circular dichroism, optical absorption, resonance Raman, and 500 MHz 1H-NMR spectroscopies. The 1.7 A resolution X-ray crystallographic structure of the recombinant protein was determined and is indistinguishable from that reported for the native protein (Than, ME, Hof P, Huber R, Bourenkov GP, Bartunik HD, Buse G, Soulimane T, 1997, J Mol Biol 271:629-644). This approach may be generally useful for expression of alien cytochrome c genes in E. coli.


  • Organizational Affiliation

    Department of Biology, University of California at San Diego, La Jolla 92093, USA. jfee@ucsd.edu


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
CYTOCHROME C552129Thermus thermophilus HB8Mutation(s): 0 
UniProt
Find proteins for Q5SME3 (Thermus thermophilus (strain ATCC 27634 / DSM 579 / HB8))
Explore Q5SME3 
Go to UniProtKB:  Q5SME3
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ5SME3
Sequence Annotations
Expand
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
HEC
Query on HEC

Download Ideal Coordinates CCD File 
B [auth A]HEME C
C34 H34 Fe N4 O4
HXQIYSLZKNYNMH-LJNAALQVSA-N
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.80 Å
  • R-Value Free: 0.262 
  • R-Value Work: 0.182 
  • R-Value Observed: 0.210 
  • Space Group: P 65
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 86.9α = 90
b = 86.9β = 90
c = 31.85γ = 120
Software Package:
Software NamePurpose
XFITdata reduction
SHELXL-97refinement
MOSFLMdata reduction
CCP4data scaling

Structure Validation

View Full Validation Report



Ligand Structure Quality Assessment 


Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2000-02-18
    Type: Initial release
  • Version 1.1: 2008-04-27
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Source and taxonomy, Version format compliance
  • Version 1.3: 2018-01-31
    Changes: Experimental preparation
  • Version 2.0: 2021-03-03
    Changes: Atomic model, Data collection, Derived calculations, Non-polymer description, Structure summary