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Home > All Images > 2002 > July > 19 Jul 2002

Images Dated 19th July 2002

Available as Framed Photos, Photos, Wall Art and Gift Items

Choose from 15 pictures in our Images Dated 19th July 2002 collection for your Wall Art or Photo Gift. Popular choices include Framed Photos, Canvas Prints, Posters and Jigsaw Puzzles. All professionally made for quick delivery.


Erythropoietin hormone Featured 19 Jul 2002 Print

Erythropoietin hormone

Erythropoietin. Computer model of a molecule of the hormone erythropoietin. This is a glycoprotein that consists of a single-chain polypeptide of 165 amino acids. Protein structural units are seen as the purple cylinders (alpha helices) and yellow arrows (beta sheets). The molecule has a molecular weight of around 30, 000. Also known as EPO, this hormone is responsible for the regulation of red blood cell production. It is primarily synthesised in the kidneys. It is abused by athletes who use it as a drug to increase their red blood cell levels. This can improve performance in a sporting event, but the thickening of the blood can be dangerous and lead to death

© DR TIM EVANS/SCIENCE PHOTO LIBRARY