MUC4 mRNA distribution in embryonic, fetal and adult intestine
| Age (weeks) | Number | Small intestine | Colon |
| 10 | 2 | − | + |
| 10.5 | 3 | 2+/1− | + |
| 12 | 2 | + | 1−/1+ |
| 12.6 | 1 | + | ND |
| 13 | 1 | + | + |
| 13.3 | 1 | + | ND |
| 14.1 | 3 | 1+/2− | ND |
| 14.3 | 1 | + | ND |
| 14.6 | 2 | + | ND |
| 14.7 | 1 | + | ND |
| 14.8 | 1 | − | ND |
| 14.9 | 2 | 1+/1− | ND |
| 15.0 | 2 | − | ND |
| 15.1 | 1 | − | ND |
| 15.2 | 1 | − | ND |
| 18 | 1 | − | + |
| 23 | 1 | − | + |
| 26 | 2 | − | + |
| 27 | 1 | − | + |
| Adults | 195-150 | J:−; I:4+/2− | + |
↵5-150 Three jejunums, J; six ileums, I; 10 colons.
ND, not determined.