MAX Interactor 1, Dimerization Protein
BHLHc11
MXD2
MAD2
MXI
Class C Basic Helix-Loop-Helix Protein 11
Max-Interacting Protein 1
Max-Related Transcription Factor
MAX Dimerization Protein 2
MAX Interacting Protein 1
MAX Interactor 1
Max Interactor 1
BHLHC11
Expression of the c-myc gene, which produces an oncogenic transcription factor, is tightly regulated in normal cells but is frequently deregulated in human cancers. The protein encoded by this gene is a transcriptional repressor thought to negatively regulate MYC function, and is therefore a potential tumor suppressor. This protein inhibits the transcriptional activity of MYC by competing for MAX, another basic helix-loop-helix protein that binds to MYC and is required for its function. Defects in this gene are frequently found in patients with prostate tumors. Three alternatively spliced transcripts encoding different isoforms have been described. Additional alternatively spliced transcripts may exist but the products of these transcripts have not been verified experimentally. [provided by RefSeq, Jul 2008]
Forensic Context
A study in mice demonstrated that chronic methamphetamine administration significantly dysregulates the MXI1 transcription factor, which is upregulated in astrocytes, microglia, and oligodendrocytes, revealing profound glial cell transcriptomic changes associated with neurotoxicity [Oladapo et al. DOI:10.3390/Ijms26020649]. In rats, DNA macroarray analysis identified the MXI1 as upregulated in the frontal cortex of ethanol-naive alcohol-preferring AA rats compared to nonpreferring ANA rats, though this specific finding was not confirmed by subsequent RT-PCR validation [Worst et al. DOI:10.1002/Jnr.20496].