van de Putte P, Cramer S, Giphart-Gassler M
Nature. 1980 Jul 17;286(5770):218-22. doi: 10.1038/286218a0.
The function of the invertible G region of bacteriophage Mu is apparently to confer different host specificities on Mu. Two products of genes S and U, situated in the G region are not needed for the infectivity of Mu G(-) particles. In the Mu G(-) phage the S gene product and the 21-K polypeptide, presumably the product of gene U, are missing. Instead, two other polypeptides with different molecular weights are observed.
噬菌体Mu的可逆G区域的功能显然是赋予Mu不同的宿主特异性。位于G区域的基因S和U的两种产物对于Mu G(-)颗粒的感染性并非必需。在Mu G(-)噬菌体中，S基因产物和推测为基因U产物的21-K多肽缺失。取而代之的是，观察到另外两种分子量不同的多肽。
