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Intermediate state lying on the pathway of release of Tat from HIV-1 TAR.
Authors
Borkar, A.N., Bardaro Jr, M., Varani, G., Vendrucolo, M.
Assembly
Cyclic peptide mimetic of HIV-1 Tat/RNA Complex
Entity
1. Cyclic peptide mimetic of HIV-1 Tat (polymer, Thiol state: not present), 14 monomers, 1761.133 Da Detail

RVRTRKGRRI RIXP


2. Apical region (29mer) of the HIV-1 TAR RNA element (polymer, Thiol state: not present), 29 monomers, 9370.525 Da Detail

GGCAGAUCUG AGCCUGGGAG CUCUCUGCC


Total weight
11131.658 Da
Max. entity weight
9370.525 Da
Source organism
Human immunodeficiency virus 1
Exptl. method
solution NMR
Refine. method
molecular dynamics
Data set
assigned_chemical_shifts
Chem. Shift Complete1
Sequence coverage: 27.9 %, Completeness: 14.6 %, Completeness (bb): 6.8 % Detail

Polymer type: polypeptide(L) polyribonucleotide

Total1H13C
All14.6 % (89 of 610)23.8 % (84 of 353) 1.9 % (5 of 257)
Backbone 6.8 % (26 of 383)12.0 % (24 of 200) 1.1 % (2 of 183)
Sidechain26.8 % (64 of 239)39.2 % (60 of 153) 4.7 % (4 of 86)
Aromatic 0.0 % (0 of 112) 0.0 % (0 of 64) 0.0 % (0 of 48)
Methyl57.1 % (8 of 14)85.7 % (6 of 7)28.6 % (2 of 7)

1. Cyclic peptide mimetic of HIV-1 Tat

RVRTRKGRRI RIXP

2. Apical region (29mer) of the HIV-1 TAR RNA element

GGCAGAUCUG AGCCUGGGAG CUCUCUGCC

Sample

Solvent system 100% D2O, Pressure 1 atm, Temperature 298 K, pH 6.6, Details 2 uM [U-99% 13C; U-99% 15N] TAR and Tatp, 100% D2O


#NameIsotope labelingTypeConcentration
1TAR and Tatp[U-99% 13C; U-99% 15N]2 uM
2D2Onatural abundance100 %

Chem. Shift Complete2
Sequence coverage: 67.4 %, Completeness: 40.1 %, Completeness (bb): 39.8 % Detail

Polymer type: polypeptide(L) polyribonucleotide

Total1H13C
All40.1 % (489 of 1220)45.6 % (322 of 706)32.5 % (167 of 514)
Backbone39.8 % (305 of 766)47.2 % (189 of 400)31.7 % (116 of 366)
Sidechain38.7 % (185 of 478)43.5 % (133 of 306)30.2 % (52 of 172)
Aromatic48.2 % (108 of 224)46.9 % (60 of 128)50.0 % (48 of 96)
Methyl28.6 % (8 of 28)42.9 % (6 of 14)14.3 % (2 of 14)

1. Cyclic peptide mimetic of HIV-1 Tat

RVRTRKGRRI RIXP

2. Apical region (29mer) of the HIV-1 TAR RNA element

GGCAGAUCUG AGCCUGGGAG CUCUCUGCC

Sample

Solvent system 100% D2O, Pressure 1 atm, Temperature 298 K, pH 6.6, Details 2 uM [U-99% 13C; U-99% 15N] TAR and Tatp, 100% D2O


#NameIsotope labelingTypeConcentration
1TAR and Tatp[U-99% 13C; U-99% 15N]2 uM
2D2Onatural abundance100 %

Protein Blocks Logo
Calculated from 10 models in PDB: 5J2W, Strand ID: A Detail


Release date
2016-06-05
Citation
[Microcirculatory changes in diabetes with vascular complications]
Borkar, A.N., Bardaro, M.F., Camilloni, C., Aprile, F.A., Varani, G., Vendrucolo, M.
Harefuah (1981), 100, 250-251, PubMed 7286828 , DOI: ,
Entries sharing articles BMRB: 2 entries Detail
  BMRB: 30046 released on 2016-06-05
    Title Ground state sampled during RDC restrained Replica-averaged Metadynamics (RAM) simulations of the HIV-1 TAR complexed with cyclic peptide mimetic of Tat
  BMRB: 30049 released on 2016-06-05
    Title Excited state (Bound-like) sampled during RDC restrained Replica-averaged Metadynamics (RAM) simulations of the HIV-1 TAR complexed with cyclic peptide mimetic of Tat
Related entities 1. Cyclic peptide mimetic of HIV-1 Tat, : 1 : 3 : 2 : 1 entities Detail
Experiments performed 1 experiments Detail
NMR combined restraints 4 contents Detail
Keywords RAM simulations, Residual dipolar couplings, TAR:Tat complex, intermediate excited state, viral protein