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Structure and conformation of polypeptide-cationic surfactant complex in organic solvents. / Lezov, A. V.; Mel'nikov, A. B.; Polushina, G. E.; Ryumtsev, E. I.; Lysenko, E. A.; Zezin, A. B.; Kabanov, V. A.

In: Vysokomolekularnye Soedineniya. Ser.A Ser.B Ser.C - Kratkie Soobshcheniya, Vol. 43, No. 9, 2001, p. 1481-1487.

Research output: Contribution to journal › Article › peer-review

Harvard

Lezov, AV, Mel'nikov, AB, Polushina, GE, Ryumtsev, EI, Lysenko, EA, Zezin, AB & Kabanov, VA 2001, 'Structure and conformation of polypeptide-cationic surfactant complex in organic solvents', Vysokomolekularnye Soedineniya. Ser.A Ser.B Ser.C - Kratkie Soobshcheniya, vol. 43, no. 9, pp. 1481-1487.

APA

Lezov, A. V., Mel'nikov, A. B., Polushina, G. E., Ryumtsev, E. I., Lysenko, E. A., Zezin, A. B., & Kabanov, V. A. (2001). Structure and conformation of polypeptide-cationic surfactant complex in organic solvents. Vysokomolekularnye Soedineniya. Ser.A Ser.B Ser.C - Kratkie Soobshcheniya, 43(9), 1481-1487.

Vancouver

Lezov AV, Mel'nikov AB, Polushina GE, Ryumtsev EI, Lysenko EA, Zezin AB et al. Structure and conformation of polypeptide-cationic surfactant complex in organic solvents. Vysokomolekularnye Soedineniya. Ser.A Ser.B Ser.C - Kratkie Soobshcheniya. 2001;43(9):1481-1487.

Author

Lezov, A. V. ; Mel'nikov, A. B. ; Polushina, G. E. ; Ryumtsev, E. I. ; Lysenko, E. A. ; Zezin, A. B. ; Kabanov, V. A. / Structure and conformation of polypeptide-cationic surfactant complex in organic solvents. In: Vysokomolekularnye Soedineniya. Ser.A Ser.B Ser.C - Kratkie Soobshcheniya. 2001 ; Vol. 43, No. 9. pp. 1481-1487.

BibTeX

@article{47b2449a7a5d43f0b5c6ece9a8028d64,
title = "Structure and conformation of polypeptide-cationic surfactant complex in organic solvents",
abstract = "Hydrodynamic, electrooptical, and conformational properties of stoichiometric polyelectrolyte complexes composed of poly(L-glutamic) acid and a cationic surfactant in chloroform and isopropyl and methyl alcohols were studied. In all these solvents, the molecules of the complex are individual compounds neither dissociating to separate components nor forming intermolecular associates. The optical rotation spectra of the solutions of the studied complex and its covalent analog, poly(γ-benzyl-α,L-glutamate), are characteristic of polypeptides occurring in the form of an α-helix. Comparison of the intrinsic viscosity η and the times of orientational relaxation τd of molecules shows that the hydrodynamic sizes of the complex molecules are markedly smaller than those of poly(γ-benzyl-α,L-glutamate) with the same degree of polymerization. A model is advanced according to which steric repulsion between bulky surfactant ions is responsible for the local disturbance of the secondary structure of the complex macromolecules; as a result, flexible fragments appear along with rigid helical regions. The presence of such fragments determines the compact convoluted conformation of the complex macromolecules in the examined solvents.",
author = "Lezov, {A. V.} and Mel'nikov, {A. B.} and Polushina, {G. E.} and Ryumtsev, {E. I.} and Lysenko, {E. A.} and Zezin, {A. B.} and Kabanov, {V. A.}",
year = "2001",
language = "English",
volume = "43",
pages = "1481--1487",
journal = "ВЫСОКОМОЛЕКУЛЯРНЫЕ СОЕДИНЕНИЯ. СЕРИЯ А",
issn = "2308-1120",
publisher = "Издательство {"}Наука{"}",
number = "9",

}

RIS

TY - JOUR

T1 - Structure and conformation of polypeptide-cationic surfactant complex in organic solvents

AU - Lezov, A. V.

AU - Mel'nikov, A. B.

AU - Polushina, G. E.

AU - Ryumtsev, E. I.

AU - Lysenko, E. A.

AU - Zezin, A. B.

AU - Kabanov, V. A.

PY - 2001

Y1 - 2001

N2 - Hydrodynamic, electrooptical, and conformational properties of stoichiometric polyelectrolyte complexes composed of poly(L-glutamic) acid and a cationic surfactant in chloroform and isopropyl and methyl alcohols were studied. In all these solvents, the molecules of the complex are individual compounds neither dissociating to separate components nor forming intermolecular associates. The optical rotation spectra of the solutions of the studied complex and its covalent analog, poly(γ-benzyl-α,L-glutamate), are characteristic of polypeptides occurring in the form of an α-helix. Comparison of the intrinsic viscosity η and the times of orientational relaxation τd of molecules shows that the hydrodynamic sizes of the complex molecules are markedly smaller than those of poly(γ-benzyl-α,L-glutamate) with the same degree of polymerization. A model is advanced according to which steric repulsion between bulky surfactant ions is responsible for the local disturbance of the secondary structure of the complex macromolecules; as a result, flexible fragments appear along with rigid helical regions. The presence of such fragments determines the compact convoluted conformation of the complex macromolecules in the examined solvents.

AB - Hydrodynamic, electrooptical, and conformational properties of stoichiometric polyelectrolyte complexes composed of poly(L-glutamic) acid and a cationic surfactant in chloroform and isopropyl and methyl alcohols were studied. In all these solvents, the molecules of the complex are individual compounds neither dissociating to separate components nor forming intermolecular associates. The optical rotation spectra of the solutions of the studied complex and its covalent analog, poly(γ-benzyl-α,L-glutamate), are characteristic of polypeptides occurring in the form of an α-helix. Comparison of the intrinsic viscosity η and the times of orientational relaxation τd of molecules shows that the hydrodynamic sizes of the complex molecules are markedly smaller than those of poly(γ-benzyl-α,L-glutamate) with the same degree of polymerization. A model is advanced according to which steric repulsion between bulky surfactant ions is responsible for the local disturbance of the secondary structure of the complex macromolecules; as a result, flexible fragments appear along with rigid helical regions. The presence of such fragments determines the compact convoluted conformation of the complex macromolecules in the examined solvents.

UR - http://www.scopus.com/inward/record.url?scp=0035549495&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:0035549495

VL - 43

SP - 1481

EP - 1487

JO - ВЫСОКОМОЛЕКУЛЯРНЫЕ СОЕДИНЕНИЯ. СЕРИЯ А

JF - ВЫСОКОМОЛЕКУЛЯРНЫЕ СОЕДИНЕНИЯ. СЕРИЯ А

SN - 2308-1120

IS - 9

ER -

ID: 94255029