Biology transition task- Protein Name: Haemoglobin Haemoglobin is a globular protein found in the red blood cells of most vertebrates. It transports oxygen and contains molecules of iron. Shape: Quaternary structure Haemoglobin has a intricately folded, three dimensional shape the is characteristic of many globular proteins. Each protein is made up of four haem groups which consists of four nitrogen atoms supporting an iron atom between them. Like other globular proteins the chain has stretches of alpha helix where the protein chain coils itself under the effect of the electrostatic bonds. Location: Red blood cells Haemoglobin is found in the red blood cells of nearly all vertebrates with the exception of fish and the tissues of some invertebrates. Function: Transport oxygen Haemoglobin, found in the blood transports oxygen from the lungs or gills to the rest of the body In other words it carries oxygen to the different tissues of the body. Once at its destination it releases the oxygen so that aerobic respiration may occur and provide energy to power bodily functions. Gene: HBA/HBB The HBA and HBB gene codes for the alpha-globin and beta globin. These are both components or subunits for the larger protein which is haemoglobin. The HBA gene is found on Chromosome 16 while the HBB gene is found on Chromosome 11. HBA- HBB- Referenced text: I have used these websites to provide myself with information. The work above may include quotes and references from these websites. ● ● ● ● ● ● https://www.smrt.bristol.sch.uk/images/stories/Sixth_Form/Transition_Tasks/Biology/ Biology-task-additional-resource.pdf https://en.wikipedia.org/wiki/Hemoglobin https://ghr.nlm.nih.gov/gene/HBB https://en.wikipedia.org/wiki/HBB https://en.wikipedia.org/wiki/Hemoglobin,_alpha_1 https://en.wikipedia.org/wiki/Biomolecular_structure#Quaternary_structure
