Observations of elastic and quasi-elastic nuclear gamma resonance absorption in hemoglobin crystals

K. H. Mayo; F. Parak; R. L. Mössbauer

doi:10.1016/0375-9601(81)90283-8

Observations of elastic and quasi-elastic nuclear gamma resonance absorption in hemoglobin crystals

K. H. Mayo, F. Parak, R. L. Mössbauer

Biochemistry, Molecular Biology, and Biophysics (TMED)

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Abstract

Mössbauer spectra of carbonmonoxy-liganded human hemoglobin crystals, selectively enriched with ⁵⁷Fe in the α-chains, were measured at 260 K and at 101 K a quadrupole doublet of lorentzians with the usual, narrow line width was observed, while at 260 K a superposition was observed of one doublet with a narrow and a second one with a broadened line width. The narrow doublet is attributed to elastic absorption processes and the broadened doublet to quasi-elastic ones. The spectrum at 260 K indicates that fluctuational processes between conformational substates of the quarternary "R" structure do exist.

Original language	English (US)
Pages (from-to)	468-470
Number of pages	3
Journal	Physics Letters A
Volume	82
Issue number	9
DOIs	https://doi.org/10.1016/0375-9601(81)90283-8
State	Published - Apr 27 1981

Bibliographical note

Funding Information:
This work was supported by the Deutsche For-scchkunnogwsleGdegmeseitnhsechawafat.rdOnoef aonf Ausle(xKa.nHd.eMr .v)ognraHteufmul-ly boldt Fellowship during his stay in the Federal Republic of Germany.

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title = "Observations of elastic and quasi-elastic nuclear gamma resonance absorption in hemoglobin crystals",

abstract = "M{\"o}ssbauer spectra of carbonmonoxy-liganded human hemoglobin crystals, selectively enriched with 57Fe in the α-chains, were measured at 260 K and at 101 K a quadrupole doublet of lorentzians with the usual, narrow line width was observed, while at 260 K a superposition was observed of one doublet with a narrow and a second one with a broadened line width. The narrow doublet is attributed to elastic absorption processes and the broadened doublet to quasi-elastic ones. The spectrum at 260 K indicates that fluctuational processes between conformational substates of the quarternary {"}R{"} structure do exist.",

author = "Mayo, {K. H.} and F. Parak and M{\"o}ssbauer, {R. L.}",

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T1 - Observations of elastic and quasi-elastic nuclear gamma resonance absorption in hemoglobin crystals

AU - Mayo, K. H.

AU - Parak, F.

AU - Mössbauer, R. L.

N1 - Funding Information: This work was supported by the Deutsche For-scchkunnogwsleGdegmeseitnhsechawafat.rdOnoef aonf Ausle(xKa.nHd.eMr .v)ognraHteufmul-ly boldt Fellowship during his stay in the Federal Republic of Germany.

PY - 1981/4/27

Y1 - 1981/4/27

N2 - Mössbauer spectra of carbonmonoxy-liganded human hemoglobin crystals, selectively enriched with 57Fe in the α-chains, were measured at 260 K and at 101 K a quadrupole doublet of lorentzians with the usual, narrow line width was observed, while at 260 K a superposition was observed of one doublet with a narrow and a second one with a broadened line width. The narrow doublet is attributed to elastic absorption processes and the broadened doublet to quasi-elastic ones. The spectrum at 260 K indicates that fluctuational processes between conformational substates of the quarternary "R" structure do exist.

AB - Mössbauer spectra of carbonmonoxy-liganded human hemoglobin crystals, selectively enriched with 57Fe in the α-chains, were measured at 260 K and at 101 K a quadrupole doublet of lorentzians with the usual, narrow line width was observed, while at 260 K a superposition was observed of one doublet with a narrow and a second one with a broadened line width. The narrow doublet is attributed to elastic absorption processes and the broadened doublet to quasi-elastic ones. The spectrum at 260 K indicates that fluctuational processes between conformational substates of the quarternary "R" structure do exist.

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JO - Physics Letters A

JF - Physics Letters A

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Observations of elastic and quasi-elastic nuclear gamma resonance absorption in hemoglobin crystals

Abstract

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