1D8V

THE RESTRAINED AND MINIMIZED AVERAGE NMR STRUCTURE OF MAP30.


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Submitted: 

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This is version 1.3 of the entry. See complete history


Literature

Solution structure of anti-HIV-1 and anti-tumor protein MAP30: structural insights into its multiple functions.

Wang, Y.X.Neamati, N.Jacob, J.Palmer, I.Stahl, S.J.Kaufman, J.D.Huang, P.L.Huang, P.L.Winslow, H.E.Pommier, Y.Wingfield, P.T.Lee-Huang, S.Bax, A.Torchia, D.A.

(1999) Cell 99: 433-435

  • DOI: 10.1016/s0092-8674(00)81529-9
  • Primary Citation of Related Structures:  
    1D8V

  • PubMed Abstract: 
  • We present the solution structure of MAP30, a plant protein with anti-HIV and anti-tumor activities. Structural analysis and subsequent biochemical assays lead to several novel discoveries. First, MAP30 acts like a DNA glycosylase/apurinic (ap) lyase, an additional activity distinct from its known RNA N-glycosidase activity toward the 28S rRNA ...

    We present the solution structure of MAP30, a plant protein with anti-HIV and anti-tumor activities. Structural analysis and subsequent biochemical assays lead to several novel discoveries. First, MAP30 acts like a DNA glycosylase/apurinic (ap) lyase, an additional activity distinct from its known RNA N-glycosidase activity toward the 28S rRNA. Glycosylase/ap lyase activity explains MAP30's apparent inhibition of the HIV-1 integrase, MAP30's ability to irreversibly relax supercoiled DNA, and may be an alternative cytotoxic pathway that contributes to MAP30's anti-HIV/anti-tumor activities. Second, two distinct, but contiguous, subsites are responsible for MAP30's glycosylase/ap lyase activity. Third, Mn2+ and Zn2+ interact with negatively charged surfaces next to the catalytic sites, facilitating DNA substrate binding instead of directly participating in catalysis.


    Organizational Affiliation

    Molecular Structural Biology Laboratory, National Institute of Dental and Craniofacial Research, National Institutes of Health, Bethesda, Maryland 20892-4310, USA.



Macromolecules
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Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
ANTI-HIV AND ANTI-TUMOR PROTEIN MAP30A263Momordica charantiaMutation(s): 0 
Gene Names: MAP30RIP
EC: 3.2.2.22
UniProt
Find proteins for P24817 (Momordica charantia)
Explore P24817 
Go to UniProtKB:  P24817
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP24817
Protein Feature View
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  • 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: 1999-11-19
    Type: Initial release
  • Version 1.1: 2008-04-27
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2022-02-16
    Changes: Database references, Derived calculations