Basic helix-loop-helix (bHLH) domain-containing proteins that play important roles in CIRCADIAN RHYTHM regulation. They combine with CLOCK PROTEINS to form heterodimeric transcription factors that are specific for E-BOX ELEMENTS and stimulate the transcription of several E-box genes that are involved in cyclical regulation.

Synonyms: Aryl Hydrocarbon Receptor Nuclear Translocator-like Transcription Factors, Brain and Muscle ARNT like 2 Protein, Transcription Factor, MOP9, Brain and muscle ARNT like 1 Protein, Transcription Factors, ARNTL, Aryl Hydrocarbon Receptor Nuclear Translocator-like Protein 1, ARNTL1 Protein, MOP3 Transcription Factor, Aryl Hydrocarbon Receptor Nuclear Translocator like Protein 1, Member of PAS Protein 3, Member of PAS Protein 9, BMAL2 Protein, Brain and Muscle ARNT-like 2 Protein, Brain and Muscle ARNT-like Proteins, BMAL1 Protein, ARNTL Transcription Factors, Aryl Hydrocarbon Receptor Nuclear Translocator-like 1 Protein, Aryl Hydrocarbon Receptor Nuclear Translocator-like 2 Protein, Brain and muscle ARNT-like 1 Protein, Aryl Hydrocarbon Receptor Nuclear Translocator like Transcription Factors, 0, ARNTL2 Protein, Brain and Muscle ARNT like Proteins, Aryl Hydrocarbon Receptor Nuclear Translocator like 2 Protein, Aryl Hydrocarbon Receptor Nuclear Translocator like 1 Protein, MOP9 Transcription Factor