targeted mutation 2, Peter Mombaerts GFP-&gt;M72-GFP-IRES-taulacZ MGI:3047226 Olfr160<tm2Mom> GFP-&gt;M72-LacZ(deltaM72) http://identifiers.org/mgd/MGI:3047226 M72-IRES-tauGFP Olfr160<tm2(GFP)Mom> Null/knockout|Reporter