3W7B

Crystal structure of formyltetrahydrofolate deformylase from Thermus thermophilus HB8


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.71 Å
  • R-Value Free: 0.261 
  • R-Value Work: 0.208 

wwPDB Validation 3D Report Full Report


This is version 1.0 of the entry. See complete history

Literature

Structures and reaction mechanisms of the two related enzymes, PurN and PurU

Sampei, G.Kanagawa, M.Baba, S.Shimasaki, T.Taka, H.Mitsui, S.Fujiwara, S.Yanagida, Y.Kusano, M.Suzuki, S.Terao, K.Kawai, H.Fukai, Y.Nakagawa, N.Ebihara, A.Kuramitsu, S.Yokoyama, S.Kawai, G.

(2013) J.Biochem. 154: 569-579

  • DOI: 10.1093/jb/mvt090
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • The crystal structures of glycinamide ribonucleotide transformylases (PurNs) from Aquifex aeolicus (Aa), Geobacillus kaustophilus (Gk) and Symbiobacterium toebii (St), and of formyltetrahydrofolate hydrolase (PurU) from Thermus thermophilus (Tt) were ...

    The crystal structures of glycinamide ribonucleotide transformylases (PurNs) from Aquifex aeolicus (Aa), Geobacillus kaustophilus (Gk) and Symbiobacterium toebii (St), and of formyltetrahydrofolate hydrolase (PurU) from Thermus thermophilus (Tt) were determined. The monomer structures of the determined PurN and PurU were very similar to the known structure of PurN, but oligomeric states were different; AaPurN and StPurN formed dimers, GkPurN formed monomer and PurU formed tetramer in the crystals. PurU had a regulatory ACT domain in its N-terminal side. So far several structures of PurUs have been determined, yet, the mechanisms of the catalysis and the regulation of PurU have not been elucidated. We, therefore, modelled ligand-bound structures of PurN and PurU, and performed molecular dynamics simulations to elucidate the reaction mechanisms. The evolutionary relationship of the two enzymes is discussed based on the comparisons of the structures and the catalytic mechanisms.


    Organizational Affiliation

    Department of Engineering Science, Graduate School of Informatics and Engineering, The University of Electro-Communications, 1-5-1 Chofugaoka, Chofu, Tokyo 182-8585, Japan; RIKEN SPring-8 Center, Harima Institute, 1-1-1 Kouto, Sayo, Sayo, Hyogo 679-5148, Japan; Structural Biology Group, SPring-8/JASRI, 1-1-1 Kouto, Sayo, Sayo, Hyogo 679-5198, Japan; Department of Life and Environmental Sciences, Faculty of Engineering, Chiba Institute of Technology, 2-17-1 Tsudanuma, Narashino, Chiba 275-0016, Japan; and Department of Biological Sciences, Graduate School of Science, Osaka University, 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Formyltetrahydrofolate deformylase
A, B
285Thermus thermophilus (strain HB8 / ATCC 27634 / DSM 579)Mutation(s): 0 
Gene Names: purU
EC: 3.5.1.10
Find proteins for Q5SIP8 (Thermus thermophilus (strain HB8 / ATCC 27634 / DSM 579))
Go to UniProtKB:  Q5SIP8
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.71 Å
  • R-Value Free: 0.261 
  • R-Value Work: 0.208 
  • Space Group: P 21 21 2
Unit Cell:
Length (Å)Angle (°)
a = 79.592α = 90.00
b = 90.726β = 90.00
c = 87.483γ = 90.00
Software Package:
Software NamePurpose
CNSrefinement
HKL-2000data scaling
BSSdata collection
AMoREphasing
HKL-2000data reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2014-01-08
    Type: Initial release