Camel myoglobin

• Main Authors: Awad, E. S., Kotite, L.
• Format: Text
• Language: English
• Published: 1966
• Subjects: Articles; Sperm whale
• Online Access: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1264936; http://www.ncbi.nlm.nih.gov/pubmed/5911536

1. Crystalline myoglobin was prepared from camel heart muscle. 2. A method was developed for the isolation of myoglobin that employs molecular-sieve chromatography. 3. Analytical chromatography of the camel myoglobin on a molecular-sieve column and on two types of ion-exchange columns gave in each case a single elution band, which accounted for better than 98% recovery and showed that the product was free from haemoglobin. 4. The iron content on a dry weight basis was 0·308%. This value corresponds to a molecular weight of 18100. 5. The spectra of acidic ferrimyoglobin, basic ferrimyoglobin and ferrimyoglobin cyanide were measured. 6. The pKa of the dissociation of the haem-bound water molecule in acidic ferrimyoglobin was 8·53 at 25°. 7. Conclusions are drawn about the charge on the surface of the camel ferrimyoglobin molecule as compared with horse and sperm-whale ferrimyoglobins.