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whats the role of small G proteins,Ras? what's the role of small G protein, Rho, Rac...

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Biology

whats the role of small G proteins,Ras? what's the role of smallG protein, Rho, Rac and CDC42?

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In addition to the heterotrimeric G proteins other forms of G proteins play important roles in cell function These proteins belong to a large superfamily often referred to as small G proteins based on their low Mr 20000 to 35000 The small G proteins like the heterotrimeric G proteins bind guanine nucleotides possess intrinsic GTPase activity and cycle through GDP and GTPbound forms One unifying feature of the various classes of G protein is that the binding of GTP versus GDP dramatically alters the affinity of the protein for some target molecule apparently by    See Answer
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