Quin Tikis, Polynesian Trio, Maori Volcanics Showband, New Zealand Impacts Showband, Maori Premiers, Gugi Walker Quartet Hore Wiremu Gugi Waaka (c.1938 â 5 July 2014), also known as Gugi Walker, was a New Zealand musical entertainer. A guitarist and singer, he was a founding member of the Quin Tikis and the Maori Volcanics Showband. Biography
Ras is a family of related proteins which is ubiquitously expressed in all cell lineages and organs. All Ras protein family members belong to a class of protein called small GTPase, and are involved in transmitting signals within cells (cellular signal transduction).Ras is the prototypical member of the Ras superfamily of proteins, which are all related in 3D structure and regulate diverse cell behaviours.When Ras is 'switched on' by incoming signals, it subsequently switches on other proteins, which ultimately turn on genes involved in cell growth, differentiation and survival.as is a G protein, or a guanosine-nucleotide-binding protein. Specifically, it is a single-subunit small GTPase, which is related in structure to the G Î± subunit of heterotrimeric G proteins (large GTPases). G proteins function as binary signaling switches with on and off states.
The renin-angiotensin system (RAS) is a hormone system in the human body that is mainly known for regulating blood pressure (BP) and fluid volume. It is named for its two central agents, renin and angiotensin.enin is secreted in response to low blood pressure. The renin-angiotensin system regulates blood pressure. The kidney releases renin in response to the body's need to regulate blood pressure and fluid volume. View slideshow of images above.