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Gene Expression Data
Assay Details
Assay
Reference: J:32247 Andujar MB, et al., Differential expression of type I and type III collagen genes during tooth development. Development. 1991 Mar;111(3):691-8
Assay type: RNA in situ
MGI Accession ID: MGI:4840262
Gene symbol: Col1a1
Gene name: collagen, type I, alpha 1
Probe: alpha 1(I) procollagen probe
Probe preparation: labelled with P32 DNA
Visualized with: Autoradiography
Results
Specimen 2: embryonic day 19.0 (more )
Structure Level Pattern Image Note
TS26: lower jaw molar Present Regionally restricted 2
TS26: molar mesenchyme Strong Regionally restricted 2 Strong expression in the first differentiated odontoblasts on the primary cusp of the molar tooth germ.
TS26: tooth mesenchyme Weak Regionally restricted 2 Faint expression in dental pulp and follicular mesenchyme.
TS26: lower jaw skeleton Present Regionally restricted 2 Expression in osteoblasts.
TS26: enamel organ Absent 2
TS26: oral epithelium Absent 2

Specimen 6: postnatal day 10 (more )
Structure Level Pattern Image Note
TS28: lower jaw molar Present Regionally restricted 6
TS28: dental pulp Present Regionally restricted 6 Decreased expression in odontoblasts. Lower expression in root odontoblast than in crown odontoblasts.
TS28: periodontal ligament Present 6
TS28: mandible Present Regionally restricted 6 Expression in osteoblasts.
TS28: bone Present 6 Expression in osteoblasts.
TS28: enamel organ Absent 6
TS28: oral epithelium Absent 6


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
01/06/2026
MGI 6.24
The Jackson Laboratory