5a0db08a_ne__Nfat5__ENSMUSG00000003847___Biotype
[Name] Nfat5-008 [Transcript ID] ENSMUST00000126397 [bp] 2325 [Protein] No protein [Translation ID] - [CCDS] - [UniProt] - [RefSeq] - [Flags] Transcript 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] 
Alternatively spliced transcript that is believed to contain intronic sequence relative to other coding transcripts in a given locus.Retained intron
Ensembl genome browser 81: Mus musculus - Summary - Gene: Nfat5 (ENSMUSG00000003847)