The function of this gene is not known. This gene is located in a region commonly deleted in esophageal squamous cell carcinomas. Gene expression is reduced or absent in these carcinomas and thus this is a candidate tumor suppressor gene for esophageal squamous cell carcinomas. [provided by RefSeq, Jul 2008] Annotation information: Note: DEC1 (Gene ID: 50514) and BHLHE40 (Gene ID: 8553) share the DEC1 symbol/alias in common. DEC1 (differentially expressed in chondrocytes 1) is a widely used alternative name for basic helix-loop-helix family member e40 (BHLHE40), which can be confused with the official symbol for deleted in esophageal cancer 1 (DEC1). [23 May 2018]