Investigation of nitrogen-fixing system in Azotobacter vinelandii by the EPR method

I. N. Ivleva; A. A. Medzhidov; G. I. Likhtenshtein; A. P. Sadkov; V. A. Yakovlev

Investigation of nitrogen-fixing system in Azotobacter vinelandii by the EPR method

I. N. Ivleva, A. A. Medzhidov, G. I. Likhtenshtein, A. P. Sadkov, V. A. Yakovlev

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

Abstract

In the present work using the EPR method we have studied the state of the paramagnetic centres in various fractions of Azotobacter vinelandii containing an active nitrogen-fixing complex. On exposure to specific reagents of nitrogen fixation in the EPR spectrum of the nitrogen-fixing complex we observed changes which may indicate the participation of iron in the stage of activation of molecular nitrogen. From comparison of the EPR spectra of the native and denatured samples of the nitrogen-fixing complex it is postulated that in the native state Mo atoms are close to other paramagnetic centres.

Original language	English
Pages (from-to)	676-684
Number of pages	9
Journal	Biophysics (Russian Federation)
Volume	14
Issue number	4
State	Published - 1 Dec 1969
Externally published	Yes

ASJC Scopus subject areas

Biophysics

Cite this

@article{846ec75a1a0543089e6a7059b2ff6104,

title = "Investigation of nitrogen-fixing system in Azotobacter vinelandii by the EPR method",

abstract = "In the present work using the EPR method we have studied the state of the paramagnetic centres in various fractions of Azotobacter vinelandii containing an active nitrogen-fixing complex. On exposure to specific reagents of nitrogen fixation in the EPR spectrum of the nitrogen-fixing complex we observed changes which may indicate the participation of iron in the stage of activation of molecular nitrogen. From comparison of the EPR spectra of the native and denatured samples of the nitrogen-fixing complex it is postulated that in the native state Mo atoms are close to other paramagnetic centres.",

author = "Ivleva, {I. N.} and Medzhidov, {A. A.} and Likhtenshtein, {G. I.} and Sadkov, {A. P.} and Yakovlev, {V. A.}",

year = "1969",

month = dec,

day = "1",

language = "English",

volume = "14",

pages = "676--684",

journal = "Biophysics (Russian Federation)",

issn = "0006-3509",

publisher = "Pleiades Publishing",

number = "4",

}

TY - JOUR

T1 - Investigation of nitrogen-fixing system in Azotobacter vinelandii by the EPR method

AU - Ivleva, I. N.

AU - Medzhidov, A. A.

AU - Likhtenshtein, G. I.

AU - Sadkov, A. P.

AU - Yakovlev, V. A.

PY - 1969/12/1

Y1 - 1969/12/1

N2 - In the present work using the EPR method we have studied the state of the paramagnetic centres in various fractions of Azotobacter vinelandii containing an active nitrogen-fixing complex. On exposure to specific reagents of nitrogen fixation in the EPR spectrum of the nitrogen-fixing complex we observed changes which may indicate the participation of iron in the stage of activation of molecular nitrogen. From comparison of the EPR spectra of the native and denatured samples of the nitrogen-fixing complex it is postulated that in the native state Mo atoms are close to other paramagnetic centres.

AB - In the present work using the EPR method we have studied the state of the paramagnetic centres in various fractions of Azotobacter vinelandii containing an active nitrogen-fixing complex. On exposure to specific reagents of nitrogen fixation in the EPR spectrum of the nitrogen-fixing complex we observed changes which may indicate the participation of iron in the stage of activation of molecular nitrogen. From comparison of the EPR spectra of the native and denatured samples of the nitrogen-fixing complex it is postulated that in the native state Mo atoms are close to other paramagnetic centres.

UR - http://www.scopus.com/inward/record.url?scp=49849127881&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:49849127881

SN - 0006-3509

VL - 14

SP - 676

EP - 684

JO - Biophysics (Russian Federation)

JF - Biophysics (Russian Federation)

IS - 4

ER -

Investigation of nitrogen-fixing system in Azotobacter vinelandii by the EPR method

Abstract

ASJC Scopus subject areas

Other files and links

Fingerprint

Cite this