guanosiiiniryhmästä

The guanosine group refers to the guanosine molecule, a nucleoside composed of guanine and ribose. Guanine is one of the four main nucleobases found in DNA and RNA, alongside adenine, cytosine, and thymine (in DNA) or uracil (in RNA). Guanosine plays a crucial role in cellular metabolism and is a building block for nucleic acids. It is also involved in various signaling pathways within cells.

In its phosphorylated form, guanosine triphosphate (GTP) serves as a vital energy source, similar to adenosine triphosphate (ATP). GTP is used in protein synthesis, signal transduction, and the movement of molecules across cell membranes. The guanosine group is also a component of cyclic guanosine monophosphate (cGMP), a second messenger molecule that regulates a wide range of physiological processes, including smooth muscle relaxation and vision. The specific arrangement and interactions of guanosine within larger biomolecules like RNA are fundamental to their function.