1A1T

STRUCTURE OF THE HIV-1 NUCLEOCAPSID PROTEIN BOUND TO THE SL3 PSI-RNA RECOGNITION ELEMENT, NMR, 25 STRUCTURES


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 800 
  • Conformers Submitted: 25 
  • Selection Criteria: LEAST TOTAL PENALTY 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structure of the HIV-1 nucleocapsid protein bound to the SL3 psi-RNA recognition element.

De Guzman, R.N.Wu, Z.R.Stalling, C.C.Pappalardo, L.Borer, P.N.Summers, M.F.

(1998) Science 279: 384-388


  • PubMed Abstract: 
  • The three-dimensional structure of the human immunodeficiency virus-type 1 (HIV-1) nucleocapsid protein (NC) bound to the SL3 stem-loop recognition element of the genomic Psi RNA packaging signal has been determined by heteronuclear magnetic resonanc ...

    The three-dimensional structure of the human immunodeficiency virus-type 1 (HIV-1) nucleocapsid protein (NC) bound to the SL3 stem-loop recognition element of the genomic Psi RNA packaging signal has been determined by heteronuclear magnetic resonance spectroscopy. Tight binding (dissociation constant, approximately 100 nM) is mediated by specific interactions between the amino- and carboxyl-terminal CCHC-type zinc knuckles of the NC protein and the G7 and G9 nucleotide bases, respectively, of the G6-G7-A8-G9 RNA tetraloop. A8 packs against the amino-terminal knuckle and forms a hydrogen bond with conserved Arg32, and residues Lys3 to Arg10 of NC form a 310 helix that binds to the major groove of the RNA stem and also packs against the amino-terminal zinc knuckle. The structure provides insights into the mechanism of viral genome recognition, explains extensive amino acid conservation within NC, and serves as a basis for the development of inhibitors designed to interfere with genome encapsidation.


    Organizational Affiliation

    Howard Hughes Medical Institute and Department of Chemistry and Biochemistry, University of Maryland-Baltimore County (UMBC), 1000 Hilltop Circle, Baltimore, MD 21250, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure


Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
NUCLEOCAPSID PROTEIN
A
55Human immunodeficiency virus 1Gene Names: gag
Find proteins for Q75677 (Human immunodeficiency virus 1)
Go to UniProtKB:  Q75677
Entity ID: 1
MoleculeChainsLengthOrganism
SL3 STEM-LOOP RNAB20N/A
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ZN
Query on ZN

Download SDF File 
Download CCD File 
A
ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 800 
  • Conformers Submitted: 25 
  • Selection Criteria: LEAST TOTAL PENALTY 
  • Olderado: 1A1T Olderado

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1998-06-17
    Type: Initial release
  • Version 1.1: 2008-03-03
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance