Solution Structure of RCL

Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 15 
  • Selection Criteria: structures with the lowest energy 

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This is version 1.2 of the entry. See complete history


Solution structure of RCL, a novel 2'-deoxyribonucleoside 5'-monophosphate N-glycosidase

Doddapaneni, K.Mahler, B.Pavlovicz, R.Haushalter, A.Yuan, C.Wu, Z.

(2009) J Mol Biol 394: 423-434

  • DOI: https://doi.org/10.1016/j.jmb.2009.08.054
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 

    RCL is an enzyme that catalyzes the N-glycosidic bond cleavage of purine 2'-deoxyribonucleoside 5'-monophosphates, a novel enzymatic reaction reported only recently. In this work, we determined the solution structure by multidimensional NMR and provide a structural framework to elucidate its mechanism with computational simulation. RCL is a symmetric homodimer, with each monomer consisting of a five-stranded parallel beta-sheet sandwiched between five alpha-helices. Three of the helices form the dimer interface, allowing two monomers to pack side by side. The overall architecture featuring a Rossmann fold is topologically similar to that of deoxyribosyltransferases, with major differences observed in the putative substrate binding pocket and the C-terminal tail. The latter is seemingly flexible and projecting away from the core structure in RCL, but loops back and is positioned at the bottom of the neighboring active site in the transferases. This difference may bear functional implications in the context of nucleobase recognition involving the C-terminal carboxyl group, which is only required in the reverse reaction by the transferases. It was also noticed that residues around the putative active site show significant conformational variation, suggesting that protein dynamics may play an important role in the enzymatic function of apo-RCL. Overall, the work provides invaluable insight into the mechanism of a novel N-glycosidase from the structural point of view, which in turn will allow rational anti-tumor and anti-angiogenesis drug design.

  • Organizational Affiliation

    Biochemistry Department, Ohio State University, Columbus, OH 43210, USA.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
c-Myc-responsive protein Rcl
A, B
165Rattus norvegicusMutation(s): 0 
Gene Names: RclDnph1
EC: 3.2.2
Find proteins for O35820 (Rattus norvegicus)
Explore O35820 
Go to UniProtKB:  O35820
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupO35820
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 15 
  • Selection Criteria: structures with the lowest energy 

Structure Validation

View Full Validation Report

Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2009-10-13
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance
  • Version 1.2: 2022-03-16
    Changes: Data collection, Database references, Derived calculations