The nucleocapsid protein of Moloney murine leukemia virus (NCp10) is a 56-amino acid protein which contains one zinc finger of the CysX2CysX4HisX4Cys form, a highly conserved motif present in most retroviruses and retroelements. At pH > or = 5, NCp10 binds one zinc atom and the complexation induces a folding of the CysX2CysX4HEsX4Cys box, similar to that observed for the zinc-binding domains of HIV-1 NC protein. The three-dimensional structure of NCp10 has been determined in aqueous solution by 600 MHz 1H NMR spectroscopy. The proton resonances could be almost completely assigned by means of phase-sensitive double-quantum-filtered COSY, TOCSY and NOESY techniques. NOESY spectra yielded 597 relevant structural constraints, which were used as input for distance geometry calculations with DIANA. Further refinement was performed by minimization with the program AMBER, which was modified by introducing a zinc force field. The solution structure is characterized by a well-defined central zinc finger (rmsd of 0.747 +/- 0.209 A for backbone atoms and 1.709 +/- 0.187 A when all atoms are considered), surrounded by flexible N- and C-terminal domains. The Tyr28, Trp35, Lys37, Lys41 and Lys42 residues, which are essential for activity, lie on the same face of the zinc finger, forming a bulge structure probably involved in viral RNA binding. The significance of these structural characteristics for the various biological functions of the protein is discussed, taking into account the results obtained with various mutants.
[NMR paper] Three-dimensional solution structure of the calcium-signaling protein apo-S100A1 as d
Three-dimensional solution structure of the calcium-signaling protein apo-S100A1 as determined by NMR.
Related Articles Three-dimensional solution structure of the calcium-signaling protein apo-S100A1 as determined by NMR.
Biochemistry. 2002 Jan 22;41(3):788-96
Authors: Rustandi RR, Baldisseri DM, Inman KG, Nizner P, Hamilton SM, Landar A, Landar A, Zimmer DB, Weber DJ
S100A1, a member of the S100 protein family, is an EF-hand containing Ca(2+)-binding protein (93 residues per subunit) with noncovalent interactions at its dimer interface. Each...
nmrlearner
Journal club
0
11-24-2010 08:49 PM
[NMR paper] NMR structure of the HIV-1 nucleocapsid protein bound to stem-loop SL2 of the psi-RNA
NMR structure of the HIV-1 nucleocapsid protein bound to stem-loop SL2 of the psi-RNA packaging signal. Implications for genome recognition.
Related Articles NMR structure of the HIV-1 nucleocapsid protein bound to stem-loop SL2 of the psi-RNA packaging signal. Implications for genome recognition.
J Mol Biol. 2000 Aug 11;301(2):491-511
Authors: Amarasinghe GK, De Guzman RN, Turner RB, Chancellor KJ, Wu ZR, Summers MF
The RNA genome of the human immunodeficiency virus type-1 (HIV-1) contains a approximately 120 nucleotide Psi-packaging signal...
nmrlearner
Journal club
0
11-19-2010 08:29 PM
[NMR paper] The NMR structure of the nucleocapsid protein from the mouse mammary tumor virus reve
The NMR structure of the nucleocapsid protein from the mouse mammary tumor virus reveals unusual folding of the C-terminal zinc knuckle.
Related Articles The NMR structure of the nucleocapsid protein from the mouse mammary tumor virus reveals unusual folding of the C-terminal zinc knuckle.
Biochemistry. 2000 Feb 22;39(7):1604-12
Authors: Klein DJ, Johnson PE, Zollars ES, De Guzman RN, Summers MF
The nucleocapsid protein (NC) from the mouse mammary tumor virus (MMTV) has been overexpressed in Escherichia coli and purified to homogeneity for...
nmrlearner
Journal club
0
11-18-2010 09:15 PM
[NMR paper] NMR structure of the complex between the zinc finger protein NCp10 of Moloney murine
NMR structure of the complex between the zinc finger protein NCp10 of Moloney murine leukemia virus and the single-stranded pentanucleotide d(ACGCC): comparison with HIV-NCp7 complexes.
Related Articles NMR structure of the complex between the zinc finger protein NCp10 of Moloney murine leukemia virus and the single-stranded pentanucleotide d(ACGCC): comparison with HIV-NCp7 complexes.
Biochemistry. 1999 Oct 5;38(40):12984-94
Authors: Schüler W, Dong C, Wecker K, Roques BP
The structure of the 56 amino acid nucleocapsid protein NCp10 of...
[NMR paper] Ribosomal protein S17: characterization of the three-dimensional structure by 1H and
Ribosomal protein S17: characterization of the three-dimensional structure by 1H and 15N NMR.
Related Articles Ribosomal protein S17: characterization of the three-dimensional structure by 1H and 15N NMR.
Biochemistry. 1993 Nov 30;32(47):12812-20
Authors: Golden BL, Hoffman DW, Ramakrishnan V, White SW
The structure of ribosomal protein S17 from Bacillus stearothermophilus was investigated by two-dimensional homonuclear and heteronuclear magnetic resonance spectroscopy. The 1H and 15N chemical shift assignments are largely complete, and a...
nmrlearner
Journal club
0
08-22-2010 03:01 AM
[NMR paper] Determination of the structure of the nucleocapsid protein NCp7 from the human immuno
Determination of the structure of the nucleocapsid protein NCp7 from the human immunodeficiency virus type 1 by 1H NMR.
http://www.ncbi.nlm.nih.gov/corehtml/query/egifs/http:--www.pubmedcentral.nih.gov-corehtml-pmc-pmcgifs-pubmed-pmc.gif Related Articles Determination of the structure of the nucleocapsid protein NCp7 from the human immunodeficiency virus type 1 by 1H NMR.
EMBO J. 1992 Aug;11(8):3059-65
Authors: Morellet N, Jullian N, De Rocquigny H, Maigret B, Darlix JL, Roques BP
The retroviral gag nucleocapsid protein NCp7 (72 amino acids)...