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Article

Structural heterogeneity of the Fe(2+)-N epsilon (HisF8) bond in various hemoglobin and myoglobin derivatives probed by the Raman-active iron histidine stretching mode.

Biophysical journal - 1 Oct 1993

Gilch H, Schweitzer-Stenner R, Dreybrodt W

Abstract excerpt

We have examined the Fe(2+)-N epsilon (HisF8) complex in hemoglobin A (HbA) by measuring the band profile of its Raman-active nu Fe-His stretching mode at pH 6.4, 7.0, and 8.0 using the 441-nm line of a HeCd laser. A line shape analysis revealed that the band can be decomposed into five different sublines at omega 1 = 195 cm-1, omega 2 = 203 cm-1, omega 3 = 212 cm-1, omega 4 = 218 cm-1, and omega 5 = 226 cm-1. To...

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PMID: 8274641
DOI: 10.1016/S0006-3495(93)81216-5
PMCID: PMC1225874

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