3.1.21.3	?	x * 116000, HsdR, x * 55000, HsdM, x * 43000, HsdS	700022	
3.1.21.3	?	x * 431000, calculated from amino acid sequence	730693	
3.1.21.3	?	x * 60000, calculated from amino acid sequence	728867	
3.1.21.3	?	x * 60000, HsdM subunit, crystallography	706964	
3.1.21.3	?	x * 90000, full length protein, SDS-PAGE. X * 60000, crystallized HsdR subunit, SDS-PAGE. X * 95000, putative HsdR subunit, calculated from sequence	710140	
3.1.21.3	dimer	sedimentation equilibrium analytical ultracentrifugation of C.Esp1396I	700507	
3.1.21.3	monomer	1 * 94000, dynamic light scattering, 1 * 130000, analytical ultracentrifugation, subunit HsdR, subunit is globular and fairly compact	681474	
3.1.21.3	additional information	ATPase activity, DNA translocase activity and endonuclease activity are specified by the R subunit, the R subunit comprises several different functional domains	134245	
3.1.21.3	additional information	the HsdR subunit may be limiting within the cell. An excess of HsdM and HsdS may produce the methylase in vivo and the assembly of the endonuclease may be dependent upon the prior production of this methylase	134253	
3.1.21.3	additional information	the HsdR subunit of the type I restriction-modification system EcoR124I is responsible for the translocation as well as the restriction activity of the whole complex consisting of the HsdR, HsdM and HsdS subunits	749514