| Feature | J_segment |
| Definition | joining segment of immunoglobulin light and heavy chains, and T-cell receptor alpha, beta, and gamma chains |
| Optional Qualifiers |
/allele="free text" /gene="free text" /gene_synonym="free text" /map="free text" /note="free text" /product="free text" /pseudo /standard_name="free text" |
| Parent Key | CDS |
| Organism Scope | eukaryotes |