The CHAC1 gene is transcribed to yield mRNA and the mRNA is translated to yield CHAC1 protein (Crawford et al. 2015, and inferred from the mouse homolog). The transcription factors ATF4, ATF3, and CEBPB (full length) bind ATF/CRE and ACM elements in the CHAC1 promoter and activate transcription of CHAC1 in response to endoplasmic reticulum stress (Crawford et al. 2015). Expression of CHAC1 is also activated by heme deficiency (inferred from the mouse homolog). TRIB3 binds the CHAC1 promoter and represses transcription of CHAC1 which leads to decreased cell death during oxidative stress (inferred from mouse homologs).