[Name] Gtf2ird1-019 [Transcript ID] ENSMUST00000200798 [bp] 857 [Protein] 74aa [Translation ID] ENSMUSP00000144521 [CCDS] - [UniProt] - [RefSeq] - [Flags] 5' truncation in transcript evidence prevents annotation of the start of the CDS.CDS 5' incomplete [Biotype] 
Transcript is thought to undergo nonsense mediated decay, a process which detects nonsense mutations and prevents the expression of truncated or erroneous proteins. Nonsense mediated decay