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MotB
Motility protein B also known as MotB is a bacterial protein that is encoded by the ''motB'' gene. It's a component of the flagellar motor. More specifically, MotA and MotB makes the stator of a flagellum and surround the rotor as a ring of about 8-10 particles. MotA and MotB are integral membrane proteins. While both MotA and MotB surround the MS ring, MotB also anchors MotA to cell wall peptidoglycan. These two proteins form pores that harvest energy for flagellar mechanical movement by proton motive force (PMF) across the membrane. Cellular metabolic processes such as the electron transport chain move protons outside the cell, creating more protons and more positive charge in the extracellular space. When the protons flow back into the cell through MotA and MotB along concentration and charge gradients, they release energy that is used for flagellar rotation. The speed of the flagellar motor is dependent on the magnitude of the PMF acting on MotA and MotB. See also * Mot ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
PomB
PomB is a protein that is part of the stator in Na+ driven bacterial flagella. Na influx to torque generation in the polar flagellar motor of Vibrio alginolyticus. The stator complex is fixed-anchored around the rotor through a putative peptidoglycan-binding (PGB) domain in the periplasmic region of PomB. See also *MotB - MotA and MotB make the stator * MotA - MotA and MotB make the stator * PomA - protein that is part of the stator in Na+ * Integral membrane protein a type of membrane protein * Archaellum *Cilium * Ciliopathy * Rotating locomotion in living systems *Undulipodium An undulipodium or undulopodium (a Greek language, Greek word meaning "swinging foot"), or a 9+2 organelle is a motile filamentous extracellular projection of eukaryotic cells. It is basically synonymous to flagella and cilia which are differing t ... References Motor proteins Bacterial proteins {{protein-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |