However, if it just the ATPase protein which has endless homologs, or the muramidase domain of FlgJ, or other known bits and pieces, it is not new.    From Wordnik.com.  [Flagellum evolution paper exhibits canine qualities - The Panda's Thumb] Reference

In experiments with various bacteria, some components (e.g. FliH, FliD (cap), and the muramidase domain of FlgJ) have been found helpful but not absolutely essential.    From Wordnik.com.  [Confirmation Bias and ID] Reference