About   Help   FAQ
Gene Expression Data
Assay Details
Assay
Reference: J:68163 Loes S, et al., Expression of class 3 semaphorins and neuropilin receptors in the developing mouse tooth. Mech Dev. 2001 Mar;101(1-2):191-4
Assay type: RNA in situ
MGI Accession ID: MGI:3032946
Gene symbol: Sema3a
Gene name: sema domain, immunoglobulin domain (Ig), short basic domain, secreted, (semaphorin) 3A
Probe: Sema3a probe
Probe preparation: Antisense labelled with S35 RNA
Visualized with: Autoradiography
Results
Specimen 1A1: embryonic day 10.5 (more )
Note: Initiation stage of tooth development.
Structure Level Pattern Image Note
TS17: 1st branchial arch mandibular component ectoderm Strong Regionally restricted 1A1 Expression is in the dental epithelium.
TS17: 1st branchial arch maxillary component ectoderm Strong Regionally restricted 1A1 Expression is in the dental epithelium.
Specimen 1A2: embryonic day 11.5 (more )
Note: Initiation stage of tooth development.
Structure Level Pattern Image Note
TS19: mandibular process Present Regionally restricted 1A2 Expression is in the dental epithelium and the presumptive dental mesenchyme.
TS19: maxillary process Present Regionally restricted 1A2 Expression is in the dental epithelium and the presumptive dental mesenchyme.
Specimen 1A3: embryonic day 12.5 (more )
Note: Early bud stage of tooth development.
Structure Level Pattern Image Note
TS20: tooth bud Present Regionally restricted 1A3 Expression is in the dental epithelium and the presumptive dental mesenchyme.
Specimen 1A4: embryonic day 13.5 (more )
Structure Level Pattern Image Note
TS21: primary enamel knot Present 1A4
TS21: tooth epithelium Present 1A4
TS21: tooth bud Present 1A4
TS21: tooth mesenchyme Present 1A4
Specimen 1A5: embryonic day 14.5 (more )
Structure Level Pattern Image Note
TS22: enamel organ Absent 1A5
TS22: tooth mesenchyme Present Regionally restricted 1A5 Expression is in some cells underlying the inner dental epithelium.
TS22: cap stage tooth Present Regionally restricted 1A5
Specimen 1A6: embryonic day 16.5 (more )
Structure Level Pattern Image Note
TS24: dental papilla Present Regionally restricted 1A6 Expression is in the preodontoblasts.
TS24: tooth mesenchyme Present Regionally restricted 1A6 Expression is in the mesenchyme underlying the preodontoblasts.
TS24: bell stage tooth Present Regionally restricted 1A6
Specimen 1A7: embryonic day 18.5 (more )
Structure Level Pattern Image Note
TS26: dental papilla Present Regionally restricted 1A7 Expression is in the preodontoblasts.
TS26: tooth mesenchyme Present Regionally restricted 1A7 Expression is in the mesenchyme underlying the preodontoblasts.
TS26: bell stage tooth Present Regionally restricted 1A7
TS26: dental sac Present 1A7
TS26: enamel organ Present Regionally restricted 1A7 Expression is in the region of the epithelial cervical loops.
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)
Citing These Resources
Funding Information
Warranty Disclaimer, Privacy Notice, Licensing, & Copyright
Send questions and comments to User Support. 		last database update
05/07/2024
MGI 6.23 		The Jackson Laboratory