5a0db08a_ne__Nfat5__ENSMUSG00000003847___Biotype
[Name] Nfat5-011 [Transcript ID] ENSMUST00000126333 [bp] 732 [Protein] 135aa [Translation ID] ENSMUSP00000118130 [CCDS] - [UniProt] F6VCW7 [RefSeq] - [Flags] 5' truncation in transcript evidence prevents annotation of the start of the CDS.CDS 5' incompleteTranscript Support Level 5, for transcripts that are not supported at all by either an mRNA or an EST.The Transcript Support Level (TSL) is a method to highlight the well-supported and poorly-supported transcript models for users. The method relies on the primary data that can support full-length transcript structure: mRNA and EST alignments supplied by UCSC and Ensembl.TSL:5 [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
Ensembl genome browser 81: Mus musculus - Summary - Gene: Nfat5 (ENSMUSG00000003847)