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Gene Expression Data
Assay Details
Assay
Reference: J:135242 Kala K, et al., Analysis of the midbrain-hindbrain boundary cell fate using a boundary cell-specific Cre-mouse strain. Genesis. 2008 Jan;46(1):29-36
Assay type: Immunohistochemistry
MGI Accession ID: MGI:7485828
Gene symbol: Cdkn1a
Gene name: cyclin dependent kinase inhibitor 1A
Antibody: anti-p21
Detection system: Secondary antibody coupled to Alexa Fluor 488
Results
Specimen 3b: embryonic day 11.5 (more )
Note: Coronal section.
Structure Level Pattern Image Note
TS19: hindbrain Present Regionally restricted 3b Expression is seen in the most posterior midbrain and the most anterior rhombomere 1 (r1) of hindbrain.
TS19: midbrain Present Regionally restricted 3b Expression is seen in the most posterior midbrain and the most anterior rhombomere 1 (r1) of hindbrain.

Specimen 3d: embryonic day 11.5; Gt(ROSA)26Sortm1Sor/Gt(ROSA)26Sor+, Tg(Hoxb7-cre)1Jpa/0 (more )
Note: Conditional mutant. Coronal section. Double labeled: green - Cdkn1a; red - Cre reporter.
Structure Level Pattern Image Note
TS19: hindbrain Present Regionally restricted 3d Expression is seen in the most posterior midbrain and the most anterior rhombomere 1 (r1) of hindbrain.
TS19: midbrain Present Regionally restricted 3d Expression is seen in the most posterior midbrain and the most anterior rhombomere 1 (r1) of hindbrain.

Specimen 3f/g: embryonic day 11.5 (more )
Note: Coronal section. Double labeled: green - Cdkn1a; red - BrdU.
Structure Level Pattern Image Note
TS19: hindbrain Present Single cells 3f , 3g Expression is seen in the most posterior midbrain and the most anterior rhombomere 1 (r1) of hindbrain. These cells are not actively progressing in the cell cycle.
TS19: midbrain Present Single cells 3f , 3g Expression is seen in the most posterior midbrain and the most anterior rhombomere 1 (r1) of hindbrain. These cells are not actively progressing in the cell cycle.

Specimen not shown: embryonic day 10.5 (more )
Note: Also labeled for BrdU.
Structure Level Pattern Image Note
TS17: midbrain Present Single cells Expression is seen in the most posterior midbrain and the most anterior rhombomere 1 (r1) of hindbrain. These cells are not actively progressing in the cell cycle.
TS17: rhombomere 1 Present Single cells Expression is seen in the most posterior midbrain and the most anterior rhombomere 1 (r1) of hindbrain. These cells are not actively progressing in the cell cycle.

Specimen 3i: embryonic day 11.5 (more )
Note: Coronal section. Double labeled: green - Cdkn1a; red - Mki67 (assay MGI:7485886).
Structure Level Pattern Image Note
TS19: hindbrain Present Single cells 3i Expression is seen in the most posterior midbrain and the most anterior rhombomere 1 (r1) of hindbrain. These cells are not actively progressing in the cell cycle.
TS19: midbrain Present Single cells 3i Expression is seen in the most posterior midbrain and the most anterior rhombomere 1 (r1) of hindbrain. These cells are not actively progressing in the cell cycle.

Specimen 3m: embryonic day 11.5 (more )
Note: Coronal section. Double labeled: green - Cdkn1a; red - Mki67 (assay MGI:7485886).
Structure Level Pattern Image Note
TS19: hindbrain Present Single cells 3m Expression is seen in the most posterior midbrain and the most anterior rhombomere 1 (r1) of hindbrain. These cells are not actively progressing in the cell cycle.
TS19: midbrain Present Single cells 3m Expression is seen in the most posterior midbrain and the most anterior rhombomere 1 (r1) of hindbrain. These cells are not actively progressing in the cell cycle.


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
03/25/2025
MGI 6.24
The Jackson Laboratory