3LWQ

Structure of H/ACA RNP bound to a substrate RNA containing 3MU

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.678 Å
  • R-Value Free: 0.271 
  • R-Value Work: 0.211 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history. 

Literature

Functional and Structural Impact of Target Uridine Substitutions on the H/ACA Ribonucleoprotein Particle Pseudouridine Synthase .

Zhou, J., Liang, B., Li, H.

(2010) Biochemistry 49: 6276-6281

  • DOI: 10.1021/bi1006699
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 

    • Box H/ACA ribonucleoprotein protein particles catalyze the majority of pseudouridylation in functional RNA. Different from stand alone pseudouridine synthases, the RNP pseudouridine synthase comprises multiple protein subunits and an RNA subunit. Pre ...

    Box H/ACA ribonucleoprotein protein particles catalyze the majority of pseudouridylation in functional RNA. Different from stand alone pseudouridine synthases, the RNP pseudouridine synthase comprises multiple protein subunits and an RNA subunit. Previous studies showed that each subunit, regardless its location, is sensitive to the step of subunit placement at the catalytic center and potentially to the reaction status of the substrate. Here we describe the impact of chemical substitutions of target uridine on enzyme activity and structure. We found that 3-methyluridine in place of uridine inhibited its isomerization while 2'-deoxyuridine or 4-thiouridine did not. Significantly, crystal structures of an archaeal box H/ACA RNP bound with the nonreactive and the two postreactive substrate analogues showed only subtle structural changes throughout the assembly except for a conserved tyrosine and a substrate anchoring loop of Cbf5. Our results suggest a potential role of these elements and the subunit that contacts them in substrate binding and product release.

    Organizational Affiliation: 

    Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure


Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Pseudouridine synthase Cbf5
A
340Pyrococcus furiosus (strain ATCC 43587 / DSM 3638 / JCM 8422 / Vc1)Mutation(s): 0 
Gene Names: truB
EC: 5.4.99.25
Find proteins for Q7LWY0 (Pyrococcus furiosus (strain ATCC 43587 / DSM 3638 / JCM 8422 / Vc1))
Go to UniProtKB:  Q7LWY0
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Ribosome biogenesis protein Nop10
B
60Pyrococcus furiosus (strain ATCC 43587 / DSM 3638 / JCM 8422 / Vc1)Mutation(s): 0 
Gene Names: nop10
Find proteins for Q8U1R4 (Pyrococcus furiosus (strain ATCC 43587 / DSM 3638 / JCM 8422 / Vc1))
Go to UniProtKB:  Q8U1R4
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
50S ribosomal protein L7Ae
C
123Pyrococcus furiosus (strain ATCC 43587 / DSM 3638 / JCM 8422 / Vc1)Mutation(s): 0 
Gene Names: rpl7ae
Find proteins for Q8U160 (Pyrococcus furiosus (strain ATCC 43587 / DSM 3638 / JCM 8422 / Vc1))
Go to UniProtKB:  Q8U160
Entity ID: 4
MoleculeChainsLengthOrganism
H/ACA RNAD58N/A
Entity ID: 5
MoleculeChainsLengthOrganism
5'-R(*GP*AP*GP*CP*GP*(UR3)P*GP*CP*GP*GP*UP*UP*U)-3E13N/A
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ZN
Query on ZN
Download SDF File 
Download CCD File 
B
ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
 Ligand Interaction
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
UR3
Query on UR3
E
RNA LINKINGC10 H15 N2 O9 PU
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.678 Å
  • R-Value Free: 0.271 
  • R-Value Work: 0.211 
  • Space Group: P 21 21 2
Unit Cell:
Length (Å)Angle (°)
a = 189.152α = 90.00
b = 64.333β = 90.00
c = 84.045γ = 90.00
Software Package:
Software NamePurpose
HKL-2000data reduction
HKL-2000data scaling
MOLREPphasing
PHENIXrefinement
HKL-2000data collection

Structure Validation

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View more in-depth experimental data

Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2010-07-14
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance