About   Help   FAQ
Gene Expression Data
Assay Details
Assay
Reference: J:31875 Linner KM, et al., Expression and function of proenkephalin A messenger ribonucleic acid in murine fetal thymocytes. Endocrinology. 1996 Mar;137(3):857-63
Assay type: RNA in situ
MGI Accession ID: MGI:6416123
Gene symbol: Penk
Gene name: preproenkephalin
Probe: PEA cDNA1
Probe preparation: Antisense labelled with S35 DNA
Visualized with: Autoradiography
Assay notes: Fetal thymocytes were spun by cytospin centrifugation onto glass slides.
Results
Specimen not shown: embryonic day 14.0 (more )
Note: Thymocyte cell counts presented in graph in Fig. 2.
Structure Level Pattern Image Note
TS22: thymus primordium Present The graph indicated approximately 1% of thymocytes were hybridized.

Specimen not shown: embryonic day 15.0 (more )
Note: Thymocyte cell counts presented in graph in Fig. 2.
Structure Level Pattern Image Note
TS23: thymus primordium Present The maximal expression occurred on E15 when 11% of the isolated thymocytes were positive.

Specimen not shown: embryonic day 16.0 (more )
Note: Thymocyte cell counts presented in graph in Fig. 2.
Structure Level Pattern Image Note
TS24: thymus Present The number of stained thymocytes declined at E16 to 8% of cells.

Specimen not shown: embryonic day 17.0 (more )
Note: Thymocyte cell counts presented in graph in Fig. 2.
Structure Level Pattern Image Note
TS25: thymus Present The number of stained thymocytes declined at E17 to less than 1% of cells.

Specimen not shown: embryonic day 19.0 (more )
Note: Thymocyte cell counts presented in graph in Fig. 2.
Structure Level Pattern Image Note
TS26: thymus Absent

Specimen 3A: embryonic day 15.0 (more )
Note: Thymocytes
Structure Level Pattern Image Note
TS23: thymus primordium Present 3A

Specimen 3B: embryonic day 17.0 (more )
Note: Thymocytes
Structure Level Pattern Image Note
TS25: thymus Present 3B


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
03/25/2025
MGI 6.24
The Jackson Laboratory