Assembles around the rod to form the L-ring and probably protects the motor/basal body from shearing forces during rotation. 371 Basal body P-ring protein FLGI_RHOSH MRRALLLAALLACAPPAFADRLKDLTTVAGVRSNPLVGYGVVVGLSGTGDGNSQLTQQSMQSLISRLGLSVETGDLKAKNAAAVMVTADLPPFLKIGQTLDVTVSTVGQAKSLKGGTLLMTPLMGADGEVYAIAQGNLVVGGLGVEGKDGSSLTVNIPTVGRVPRGGMVEKMVETPFLETDHLVLNLNRGDFSTAAAVAEGVNRTFGPDVAVALDGTSIRVRAPADPAQRVSFMSLLENVEVDPAPPVARVVVNARTGTVVIGGTVKVTPAAVTHGSLTVRVTEDQRVSQGASVVVGNNATVVAPGEPVVTPDSQVQVVEEPAKAFVFDPGVSLSSLVDAINAVGASPSDLVAILEALREAGALRAELVVI flgI Flagellar P-ring protein