PMID- 17178129
OWN - NLM
STAT- MEDLINE
DCOM- 20070329
LR  - 20170219
IS  - 0022-2836 (Print)
IS  - 0022-2836 (Linking)
VI  - 366
IP  - 3
DP  - 2007 Feb 23
TI  - Structure and dynamics of UDP-glucose pyrophosphorylase from Arabidopsis thaliana
      with bound UDP-glucose and UTP.
PG  - 830-41
AB  - The structure of the UDP-glucose pyrophosphorylase encoded by Arabidopsis
      thaliana gene At3g03250 has been solved to a nominal resolution of 1.86
      Angstroms. In addition, the structure has been solved in the presence of the
      substrates/products UTP and UDP-glucose to nominal resolutions of 1.64 Angstroms 
      and 1.85 Angstroms. The three structures revealed a catalytic domain similar to
      that of other nucleotidyl-glucose pyrophosphorylases with a carboxy-terminal
      beta-helix domain in a unique orientation. Conformational changes are observed
      between the native and substrate-bound complexes. The nucleotide-binding loop and
      the carboxy-terminal domain, including the suspected catalytically important
      Lys360, move in and out of the active site in a concerted fashion. TLS refinement
      was employed initially to model conformational heterogeneity in the UDP-glucose
      complex followed by the use of multiconformer refinement for the entire molecule.
      Normal mode analysis generated atomic displacement predictions in good agreement 
      in magnitude and direction with the observed conformational changes and
      anisotropic displacement parameters generated by TLS refinement. The structures
      and the observed dynamic changes provide insight into the ordered mechanism of
      this enzyme and previously described oligomerization effects on catalytic
      activity.
FAU - McCoy, Jason G
AU  - McCoy JG
AD  - Department of Biochemistry, University of Wisconsin-Madison, Madison, WI 53706,
      USA.
FAU - Bitto, Eduard
AU  - Bitto E
FAU - Bingman, Craig A
AU  - Bingman CA
FAU - Wesenberg, Gary E
AU  - Wesenberg GE
FAU - Bannen, Ryan M
AU  - Bannen RM
FAU - Kondrashov, Dmitry A
AU  - Kondrashov DA
FAU - Phillips, George N Jr
AU  - Phillips GN Jr
LA  - eng
SI  - PDB/1Z90
GR  - P50 GM064598/GM/NIGMS NIH HHS/United States
GR  - T15 LM007359/LM/NLM NIH HHS/United States
GR  - U54 GM074901/GM/NIGMS NIH HHS/United States
GR  - P50 GM64598/GM/NIGMS NIH HHS/United States
PT  - Journal Article
PT  - Research Support, N.I.H., Extramural
PT  - Research Support, U.S. Gov't, Non-P.H.S.
DEP - 20061121
PL  - England
TA  - J Mol Biol
JT  - Journal of molecular biology
JID - 2985088R
RN  - EC 2.7.7.9 (UTP-Glucose-1-Phosphate Uridylyltransferase)
RN  - UT0S826Z60 (Uridine Triphosphate)
RN  - V50K1D7P4Y (Uridine Diphosphate Glucose)
SB  - IM
MH  - Arabidopsis/*enzymology
MH  - Binding Sites
MH  - Humans
MH  - Models, Molecular
MH  - Protein Folding
MH  - Protein Structure, Quaternary
MH  - Protein Structure, Secondary
MH  - Structure-Activity Relationship
MH  - Substrate Specificity
MH  - UTP-Glucose-1-Phosphate Uridylyltransferase/*chemistry/*metabolism
MH  - Uridine Diphosphate Glucose/*metabolism
MH  - Uridine Triphosphate/*metabolism
PMC - PMC1847403
MID - NIHMS18264
OID - NLM: NIHMS18264
OID - NLM: PMC1847403
EDAT- 2006/12/21 09:00
MHDA- 2007/03/30 09:00
CRDT- 2006/12/21 09:00
PHST- 2006/10/10 00:00 [received]
PHST- 2006/11/15 00:00 [revised]
PHST- 2006/11/17 00:00 [accepted]
PHST- 2006/12/21 09:00 [pubmed]
PHST- 2007/03/30 09:00 [medline]
PHST- 2006/12/21 09:00 [entrez]
AID - S0022-2836(06)01599-3 [pii]
AID - 10.1016/j.jmb.2006.11.059 [doi]
PST - ppublish
SO  - J Mol Biol. 2007 Feb 23;366(3):830-41. doi: 10.1016/j.jmb.2006.11.059. Epub 2006 
      Nov 21.