Minimized Average Structure of the N-terminal, DNA-binding domain of the replication initiation protein from a geminivirus (Tomato yellow leaf curl virus-Sardinia)

Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Submitted: 

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The structure of a replication initiator unites diverse aspects of nucleic acid metabolism

Campos-Olivas, R.Louis, J.M.Clerot, D.Gronenborn, B.Gronenborn, A.M.

(2002) Proc Natl Acad Sci U S A 99: 10310-10315

  • DOI: https://doi.org/10.1073/pnas.152342699
  • Primary Citation of Related Structures:  
    1L2M, 1L5I

  • PubMed Abstract: 

    Rolling circle replication is a mechanism for copying single-stranded genomes by means of double-stranded intermediates. A multifunctional replication initiator protein (Rep) is indispensable for the precise initiation and termination of this process. Despite the ubiquitous presence and fundamental importance of rolling circle replication elements, structural information on their respective replication initiators is still missing. Here we present the solution NMR structure of the catalytic domain of Rep, the initiator protein of tomato yellow leaf curl virus. It is composed of a central five-stranded anti-parallel beta-sheet, flanked by a small two-stranded beta-sheet, a beta-hairpin and two alpha-helices. Surprisingly, the structure reveals that the catalytic Rep domain is related to a large group of proteins that bind RNA or DNA. Identification of Rep as resembling the family of ribonucleoprotein/RNA-recognition motif fold proteins establishes a structure-based evolutionary link between RNA binding proteins, splicing factors, and replication initiators of prokaryotic and eukaryotic single-stranded DNA elements and mammalian DNA tumor viruses.

  • Organizational Affiliation

    Laboratory of Chemical Physics, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD 20892, USA.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Rep protein118Tomato yellow leaf curl Sardinia virusMutation(s): 0 
Gene Names: rep
Find proteins for P27260 (Tomato yellow leaf curl Sardinia virus)
Explore P27260 
Go to UniProtKB:  P27260
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP27260
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Submitted: 

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2002-09-18
    Type: Initial release
  • Version 1.1: 2008-04-28
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2022-02-23
    Changes: Database references, Derived calculations