Abstract
The effects of the chloride salts of copper and zinc on some oxygen binding characteristics (oxygen affinity, subunit cooperativity and Bohr effect) of the haemoglobin of Arenicola marina are determined and compared with the influence of other inorganic salts. A slight decrease in oxygen affinity is caused by increasing the Cu 2+Cl- 2 or Zn 2+Cl- 2 concentration from 10 −7 to 10 −3 M where it reaches a minimum. The subunit cooperativity appears to be nearly unaffected by changes in copper- or zinc chloride concentration. At higher concentrations it decreases at pH values below 7.50 measured, but increases at pH 7.80. Copper- or zinc chloride causes a decrease in the Bohr effect, reflecting interactions of oxygenation-linked binding by protons and the metal chlorides studied. The possible physiological significance of the effects are discussed.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
