Haemocyanin. Coloured transmission electron micro- graph (TEM) of molecules of haemocyanin,a respiratory protein and pigment found in molluscs and arthropods. Like haemoglobin in mammals,haemocyanin is an oxygen carrying molecule. Each molecule is barrel-shaped appearing rounded end-on but oblong with transverse striations when seen from the side. Here,the haemocyanin molecules are from a marine whelk Burnupena cincta. They are a copper- containing protein (non-porphyrin) that occurs in solution in mollusc haemolymph "blood". It is blue when oxygenated,colourless when de- oxygenated. Magnification: unknown | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / DR LINDA STANNARD, UCT |
Taille de l’image : | 3658 px × 2483 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |