Research output: Contribution to journal › Article
Coordination to Imidazole Ring Switches On Phosphorescence of Platinum Cyclometalated Complexes: The Route to Selective Labeling of Peptides and Proteins via Histidine Residues. / Solomatina, Anastasia I.; Chelushkin, Pavel S; Krupenya, Dmitrii V.; Podkorytov, Ivan S.; Artamonova, Tatiana O.; Sizov, Vladimir V.; Melnikov, Alexei S; Gurzhiy, Vladislav V.; Koshel, Elena I.; Shcheslavskiy, Vladislav; Tunik, Sergey P.
In: Bioconjugate Chemistry, Vol. 28, No. 2, 2016, p. 426–437.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Coordination to Imidazole Ring Switches On Phosphorescence of Platinum Cyclometalated Complexes: The Route to Selective Labeling of Peptides and Proteins via Histidine Residues
AU - Solomatina, Anastasia I.
AU - Chelushkin, Pavel S
AU - Krupenya, Dmitrii V.
AU - Podkorytov, Ivan S.
AU - Artamonova, Tatiana O.
AU - Sizov, Vladimir V.
AU - Melnikov, Alexei S
AU - Gurzhiy, Vladislav V.
AU - Koshel, Elena I.
AU - Shcheslavskiy, Vladislav
AU - Tunik, Sergey P
PY - 2016
Y1 - 2016
N2 - In this study we have shown that substitution of chloride ligand for imidazole (Im) ring in cyclometalated platinum complex, Pt(phpy)(PPh3)Cl (1; phpy = 2-phenylpyridine; PPh3 = triphenylphosphine), which is non-emissive in solution, switches on phosphorescence of the resulting compound. Crystallographic and NMR spectroscopic studies of the substitution product showed that the luminescence ignition is a result of Im coordination to give the [Pt(phpy)(Im)(PPh3)]Cl complex. The other imidazole-containing biomolecules such as histidine and histidine-containing peptides and proteins also trigger luminescence of the substitution products. The complex 1 proved to be highly selective towards the imidazole ring coordination that allows site-specific labelling of peptides and proteins with 1 using the route, which is orthogonal to the common bioconjugation schemes via lysine, aspartic/glutamic acids or cysteine and does not require any preliminary modification of a biomolecule. The utility of this approach was demonst
AB - In this study we have shown that substitution of chloride ligand for imidazole (Im) ring in cyclometalated platinum complex, Pt(phpy)(PPh3)Cl (1; phpy = 2-phenylpyridine; PPh3 = triphenylphosphine), which is non-emissive in solution, switches on phosphorescence of the resulting compound. Crystallographic and NMR spectroscopic studies of the substitution product showed that the luminescence ignition is a result of Im coordination to give the [Pt(phpy)(Im)(PPh3)]Cl complex. The other imidazole-containing biomolecules such as histidine and histidine-containing peptides and proteins also trigger luminescence of the substitution products. The complex 1 proved to be highly selective towards the imidazole ring coordination that allows site-specific labelling of peptides and proteins with 1 using the route, which is orthogonal to the common bioconjugation schemes via lysine, aspartic/glutamic acids or cysteine and does not require any preliminary modification of a biomolecule. The utility of this approach was demonst
U2 - 10.1021/acs.bioconjchem.6b00598
DO - 10.1021/acs.bioconjchem.6b00598
M3 - Article
VL - 28
SP - 426
EP - 437
JO - Bioconjugate Chemistry
JF - Bioconjugate Chemistry
SN - 1043-1802
IS - 2
ER -
ID: 7616623