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| carcinoembryonic antigen-related cell adhesion molecule 21 | |
|---|---|
| Identifiers | |
| Symbol | CEACAM21 |
| Entrez | 90273 |
| HUGO | 28834 |
| RefSeq | NM_033543 |
| Other data | |
| Locus | Chr. 19 q13.2 |
CEACAM21 is a gene which encodes carcinoembryonic antigen.
Carcinoembryonic antigen (CEA) describes a set of highly related glycoproteins involved in cell adhesion. CEA is normally produced in gastrointestinal tissue during fetal development, but the production stops before birth. Consequently, CEA is usually present at very low levels in the blood of healthy adults. However, the serum levels are raised in some types of cancer, which means that it can be used as a tumor marker in clinical tests. Serum levels can also be elevated in heavy smokers.
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