Some observations on the reactive sulphydryl groups in haemoglobin

The sulphydryl groups of sickle-cell haemoglobin.

particularpH owing to the screening ofthe haematin iron atom from the influence of the various ionizing groups. On this basis a larger critical I would signify that a larger concentration of salt ions is required for complete screening, and hence that there is a stronger interaction between the iron and the ionizing groups in MetHb. In conclusion, although the mechanism may be different it may ...

Observations on foetal haemoglobin.

Foetal haemoglobin exhibits a much greater resistance towards alkaline denaturation than does adult haemoglobin, thus constituting an important distinction between the two types of haemoglobin. The phenomenon was first described by Korber (1866), observed again by Kruger (1887-88), and subsequently studied in more detail by Bischoff (1926), Haurowitz (1929, 1930), and Brinkman, Wildschut and Wi...

A study of the 'reactive' sulphydryl groups of adenosine 5'-triphosphate-creatine phosphotransferase.

Some observations on the feeding of the guinea pig

Some observations on the nature of reactive groups involved in reversal of mycobacillin inhibition by sterols and lipids.

Antifungal action of di- and triacetyl derivatives of mycobacillin is not antagonised by cholesterol or lecithin which antagonise the action of its heptamethyl derivative. Considering the reactive groups of mycobacillin, the antagonism may involve the tyrosine hydroxyl groups of the antibiotic and the 3-hydroxyl group of cholesterol of the oleic acid component of lecithin having unsaturation at...