- Fine mapping, gene content, comparative sequencing, and expression analyses support Ctla4 and Nramp1 as candidates for Idd5.1 and Idd5.2 in the nonobese diabetic mouse. Wicker, L.S., Chamberlain, G., Hunter, K., Rainbow, D., Howlett, S., Tiffen, P., Clark, J., Gonzalez-Munoz, A., Cumiskey, A.M., Rosa, R.L., Howson, J.M., Smink, L.J., Kingsnorth, A., Lyons, P.A., Gregory, S., Rogers, J., Todd, J.A., Peterson, L.B. J. Immunol. (2004)