This locus represents naturally occurring readthrough transcription between the neighboring Xndr (XRCC1 N-terminal domain-related) and Trpc2 (transient receptor potential cation channel, subfamily C, member 2) genes on chromosome 7. Readthrough transcripts include one that encodes a fusion protein that shares sequence identity with each individual gene product and one that is a candidate for nonsense-mediated mRNA decay (NMD), and thus is unlikely to produce a protein product. [provided by RefSeq, Nov 2013]