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Gene Expression Data
Assay Details
Assay
Reference: J:100495 Howard B, et al., Identification of the scaramanga gene implicates Neuregulin3 in mammary gland specification. Genes Dev. 2005 Sep 1;19(17):2078-90
Assay type: RNA in situ
MGI Accession ID: MGI:5796674
Gene symbol: Lef1
Gene name: lymphoid enhancer binding factor 1
Probe: Lef probe1
Probe preparation: Antisense labelled with digoxigenin RNA
Results
Specimen 1A: embryonic day 11.75; Nrg3ska/Nrg3ska (more )
Note: 48 somites
Structure Level Pattern Image Note
TS20: mammary bud Present Regionally restricted 1A Expression in mammary buds 1 and 4. Mammary bud 3 has not formed in the A/J embryo.

Specimen 1B: embryonic day 11.75 (more )
Note: 48 somites
Structure Level Pattern Image Note
TS20: mammary bud Present Regionally restricted 1B Expression in mammary buds 1, 3 and 4 in the B6 embryo.

Specimen 1C: embryonic day 12.5; Nrg3ska/Nrg3ska (more )
Note: 53 somites
Structure Level Pattern Image Note
TS21: mammary bud Present Regionally restricted 1C Expression in mammary buds 1, 2 and 4. Mammary bud 3 is absent in the A/J embryo.

Specimen 1D: embryonic day 12.5 (more )
Note: 55 somites
Structure Level Pattern Image Note
TS21: mammary bud Present Regionally restricted 1D Expression in mammary buds 2, 3 and 4 in the B6 embryo.

Specimen 1E: embryonic day 12.5; Nrg3ska/Nrg3ska (more )
Note: 54 somites
Structure Level Pattern Image Note
TS21: mammary bud Present Regionally restricted 1E Expression in mammary bud 4. Presumptive supernumerary bud adjacent to mammary bud 4.

Specimen 1E inset: embryonic day 12.5; Nrg3ska/Nrg3ska (more )
Note: 54 somites
Structure Level Pattern Image Note
TS21: integumental system Present Regionally restricted 1E inset Expression in ectopic cells and in a line of cells connecting mammary bud 4 to ectopic bud. Expression in line of cells connective mammary bud 4 to bud 5.


Contributing Projects:
Mouse Genome Database (MGD), Gene Expression Database (GXD), Mouse Models of Human Cancer database (MMHCdb) (formerly Mouse Tumor Biology (MTB)), Gene Ontology (GO)
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last database update
03/24/2026
MGI 6.24
The Jackson Laboratory