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Three dimensional structure of EPI-X4, a human albumin-derived peptide that regulates innate immunity through the CXCR4/CXCL12 chemotactic axis and antagonizes HIV-1 entry
Authors
Perez-Castells, J., Canales, A., Jimenez-Barbero, J., Gimenez-Gallego, G.
Assembly
EPI-X4, a human albumin-derived peptide
Entity
1. EPI-X4, a human albumin-derived peptide (polymer, Thiol state: not present), 16 monomers, 1830.173 Da Detail

LVRYTKKVPQ VSTPTL


Formula weight
1830.173 Da
Source organism
Homo sapiens
Exptl. method
solution NMR
Refine. method
torsion angle dynamics
Data set
assigned_chemical_shifts
Chem. Shift Complete
Sequence coverage: 100.0 %, Completeness: 96.2 %, Completeness (bb): 96.7 % Detail

Polymer type: polypeptide(L)

Total1H
All96.2 % (100 of 104)96.2 % (100 of 104)
Backbone96.7 % (29 of 30)96.7 % (29 of 30)
Sidechain95.9 % (71 of 74)95.9 % (71 of 74)
Aromatic100.0 % (4 of 4)100.0 % (4 of 4)
Methyl100.0 % (13 of 13)100.0 % (13 of 13)

1. entity

LVRYTKKVPQ VSTPTL

Sample

Solvent system 90% H2O/10% D2O, Pressure 1 atm, Temperature 298 K, pH 7, Details 1 mM solution of albumin derived peptide was prepared in 10 mM Na-phosphate adjusted to a final pH of 7.0


#NameIsotope labelingTypeConcentration
1entitynatural abundance1 mM
2sodium phosphatenatural abundance10 mM
3H2Onatural abundance90 %
4D2Onatural abundance10 %

Protein Blocks Logo
Calculated from 20 models in PDB: 2N0X, Strand ID: A Detail


Release date
2015-04-26
Citation
Discovery and characterization of an endogenous CXCR4 antagonist
Zirafi, O., Kim, K., Standker, L., Mohr, K., Sauter, D., Heigele, A., Kluge, S., Wiercinska, E., Chudziak, D., Richter, R., Moepps, B., Grieschik, P., Vas, V., Geiger, H., Lamia, M., Weil, T., Burster, T., Zgraja, A., Daubeuf, F., Forssard, N., Hachet-Haas, M., Heunisch, F., Reichetzeder, C., Galzi, J., Perez-Castells, J., Canales, A., Jimenez-Barbero, J., Gimenez-Gallego, G., Scheneider, M., Shorter, J., Telendi, A., Hocher, B., Forssman, W., Kirchhoff, H., Munch, J.
Cell Rep. (2015), 11, 737-747, PubMed 25921529 , DOI 10.1016/j.celrep.2015.03.061 ,
Related entities 1. EPI-X4, a human albumin-derived peptide, : 107 : 2 : 2 : 13 entities Detail
Interaction partners 1. EPI-X4, a human albumin-derived peptide, : 51 interactors Detail
Experiments performed 2 experiments Detail
NMR combined restraints 3 contents Detail
Keywords CXCR4, albumin, antagonist, peptide