HES1

Has a particular type of basic domain (presence of a helix-interrupting proline) that binds to the N-box (CACNAG), rather than the canonical E-box (CANNTG).

The C-terminal WRPW motif is a transcriptional repression domain necessary for the interaction with Groucho/TLE family members, transcriptional corepressors recruited to specific target DNA by Hairy-related proteins.

The bHLH, as well as cooperation between the central Orange domain and the C-terminal WRPW motif, is required for transcriptional repressor activity.

Transcriptional repressor of genes that require a bHLH protein for their transcription. May act as a negative regulator of myogenesis by inhibiting the functions of MYOD1 and ASH1. Binds DNA on N-box motifs: 5'-CACNAG-3' with high affinity and on E-box motifs: 5'-CANNTG-3' with low affinity (By similarity). May play a role in a functional FA core complex response to DNA cross-link damage, being required for the stability and nuclear localization of FA core complex proteins, as well as for FANCD2 monoubiquitination in response to DNA damage.

(Microbial infection) Ubiquitinated via human cytomegalovirus/HCMV protein IE1 that assembles a HES1 ubiquitination complex; leading to HES1 proteasomal degradation.

• Nucleus

BHLHB39, HL, HRY, HES1, Transcription factor HES-1, Class B basic helix-loop-helix protein 39, Hairy and enhancer of split 1, Hairy homolog, Hairy-like protein, bHLHb39, hHL

• entrezGene:3280
• omim:139605
• swissprot:Q14469

Proteins

Oncology

• Epigenetics

29541Da