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Gene Expression Data
Assay Details
Assay
Reference: J:82110 Luukko K, et al., Identification of a novel putative signaling center, the tertiary enamel knot in the postnatal mouse molar tooth. Mech Dev. 2003 Mar;120(3):270-6
Assay type: RNA in situ
MGI Accession ID: MGI:5604518
Gene symbol: Fgf4
Gene name: fibroblast growth factor 4
Probe: Fgf4 cDNA5
Probe preparation: Antisense labelled with S35 RNA
Assay notes: Fixative was 12.5% ethylenediaminetetraacetic acid (EDTA), 2.5% phosphonoformatic acid (PFA).
Results
Specimen 1A: embryonic day 16.0 (more )
Structure Level Pattern Image Note
TS24: lower jaw molar enamel organ Present Regionally restricted 1A Expression is in the lingual and buccal secondary enamel knot.
TS24: secondary enamel knot Present Regionally restricted 1A Expression is in the lingual and buccal secondary enamel knot.
TS24: early bell stage tooth Present Regionally restricted 1A
Specimen 1B: embryonic day 17.5 (more )
Structure Level Pattern Image Note
TS25: lower jaw molar enamel organ Present Regionally restricted 1B Expression is in the secondary enamel knot.
TS25: bell stage tooth Present Regionally restricted 1B
TS25: secondary enamel knot Present 1B
Specimen 1D: embryonic day 18.5 (more )
Structure Level Pattern Image Note
TS26: lower jaw molar enamel organ Trace Regionally restricted 1D Expression is in the secondary enamel knot.
TS26: secondary enamel knot Trace 1D
Specimen not shown: postnatal day 3 (more )
Structure Level Pattern Image Note
TS27: molar enamel organ Absent
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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12/30/2025
MGI 6.24 		The Jackson Laboratory