Qualifier |
exception |
| Definition | indicates that the coding region cannot be translated using standard biological rules |
| Value Format | "RNA editing", "reasons given in citation", "rearrangement required for product" |
| Example | /exception="RNA editing" /exception="reasons given in citation"
/exception="rearrangement required for product" |
| Comment | only to be used to describe biological mechanisms such as RNA editing; where the exception cannot easily be described a published citation must be referred to; protein translation of /exception CDS will be different from the according conceptual translation; - must not be used where transl_except would be adequate, e.g. in case of stop codon completion use: /transl_except=(pos:6883,aa:TERM) /note="TAA stop codon is completed by addition of 3' A residues to mRNA". - must not be used for ribosomal slippage, instead use join operator, e.g.: CDS join(486..1784,1787..4810) /note="ribosomal slip on tttt sequence at 1784..1787" |