1974
DOI: 10.1042/bj1370339
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A study of the properties of hybrids of oxyhaemoglobin and deoxyhaemoglobin with two porphyringlobin species

Abstract: The fluorescence of porphyringlobin is quenched on adding haemoglobin to its solutions. It is suggested that this result indicates the formation of hybrids (comprising a dimer of porphyringlobin and a dimer of haemoglobin) in which quenching occurs by energy transfer from the porphyrin to the haem groups of the protein. From an analysis of fluorescence quenching, dissociation constants were calculated for the hybrids of oxy- and deoxyhaemoglobin with the fast- and slow-moving porphyringlobin species isolated b… Show more

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Cited by 6 publications
(1 citation statement)
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“…This experiment confirms the conclusion reached by Treffry & Ainsworth (1974a), that the two species can form mixed hybrids in which the more-stable slowmoving porphyringlobin forces the fast-moving porphyringlobin subunits to become more like itself. A similar conclusion can be drawn from the behaviour ofmixtures offastand slow-moving porphyringlobin with haemoglobin derivatives (Treffry & Ainsworth, 1974b).…”
Section: Reactivity Of the Thiol Groups Ofporphyringlobinsupporting
confidence: 76%
“…This experiment confirms the conclusion reached by Treffry & Ainsworth (1974a), that the two species can form mixed hybrids in which the more-stable slowmoving porphyringlobin forces the fast-moving porphyringlobin subunits to become more like itself. A similar conclusion can be drawn from the behaviour ofmixtures offastand slow-moving porphyringlobin with haemoglobin derivatives (Treffry & Ainsworth, 1974b).…”
Section: Reactivity Of the Thiol Groups Ofporphyringlobinsupporting
confidence: 76%