User:Adam Meade/Sandbox 1: Difference between revisions
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Irr accumulates in cells under iron limitation, with very low levels of Irr being present in iron-replete cells. This is a distinction when compared to other Fur family proteins because it functions in the absence of the regulatory metal, whereas the other members require direct metal-binding for the protein to be activated. <ref>2) Small, S. K., S. Puri, and M. R. O’Brian. 2009. <u>Heme-dependent metalloregulation by the iron response regulator (Irr) protein in Rhizobium and other alpha-proteobacteria</u>. Biometals 22:89-97.</ref> | Irr accumulates in cells under iron limitation, with very low levels of Irr being present in iron-replete cells. This is a distinction when compared to other Fur family proteins because it functions in the absence of the regulatory metal, whereas the other members require direct metal-binding for the protein to be activated. <ref>2) Small, S. K., S. Puri, and M. R. O’Brian. 2009. <u>Heme-dependent metalloregulation by the iron response regulator (Irr) protein in Rhizobium and other alpha-proteobacteria</u>. Biometals 22:89-97.</ref> | ||
'''Properties of Irr''' | |||
Molecular weight: 18338.8 | |||
Theoretical pI: 6.03 | |||