Structural highlights
Function
YCGR_ECOLI Acts as a flagellar brake, regulating swimming and swarming in a bis-(3'-5') cyclic diguanylic acid (c-di-GMP)-dependent manner. When bound to c-di-GMP it binds to elements of the flagellar motor (MotA (PubMed:20303158) and/or FliG and FliM (PubMed:20346719), binding to FliM also occurs in the absence of c-di-GMP), causing the motor to slow down. Thus, increasing levels of c-di-GMP lead to decreased motility. Probably binds 1 c-di-GMP dimer per subunit.[1] [2] [3] [4]
References
- ↑ Ko M, Park C. Two novel flagellar components and H-NS are involved in the motor function of Escherichia coli. J Mol Biol. 2000 Oct 27;303(3):371-82. PMID:11031114 doi:https://dx.doi.org/10.1006/jmbi.2000.4147
- ↑ Ryjenkov DA, Simm R, Romling U, Gomelsky M. The PilZ domain is a receptor for the second messenger c-di-GMP: the PilZ domain protein YcgR controls motility in enterobacteria. J Biol Chem. 2006 Oct 13;281(41):30310-4. doi: 10.1074/jbc.C600179200. Epub 2006 , Aug 18. PMID:16920715 doi:https://dx.doi.org/10.1074/jbc.C600179200
- ↑ Boehm A, Kaiser M, Li H, Spangler C, Kasper CA, Ackermann M, Kaever V, Sourjik V, Roth V, Jenal U. Second messenger-mediated adjustment of bacterial swimming velocity. Cell. 2010 Apr 2;141(1):107-16. doi: 10.1016/j.cell.2010.01.018. Epub 2010 Mar, 18. PMID:20303158 doi:https://dx.doi.org/10.1016/j.cell.2010.01.018
- ↑ Paul K, Nieto V, Carlquist WC, Blair DF, Harshey RM. The c-di-GMP binding protein YcgR controls flagellar motor direction and speed to affect chemotaxis by a "backstop brake" mechanism. Mol Cell. 2010 Apr 9;38(1):128-39. doi: 10.1016/j.molcel.2010.03.001. Epub 2010, Mar 25. PMID:20346719 doi:10.1016/j.molcel.2010.03.001
